RankingEffort benchmarks

Claude Opus 5 · Medium

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165 measured results · 6 effort settings · 79 benchmark/harness combinations

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Capability profile

One configuration, seven capabilities

Comparison score · 0–100
Claude Opus 5 · Medium capability radarComparison scores from 0 to 100. Unknown capabilities have no point; lines stop at gaps. Hollow points are preliminary. Exact values and support labels follow the chart.AgenticHard reasoningCodingHuman prefKnowledgeMultimodalLong context50100Claude Opus 5 · Medium · Agentic: 58.4 · SupportedClaude Opus 5 · Medium · Hard reasoning: 58.0 · SupportedClaude Opus 5 · Medium · Coding: 84.5 · SupportedClaude Opus 5 · Medium · Knowledge: 60.5 · PreliminaryClaude Opus 5 · Medium · Multimodal: 50.6 · PreliminaryClaude Opus 5 · Medium · Long context: 73.9 · Preliminary

Gaps are unknown, not zero. Hollow points are preliminary.

  • Agentic

    A58.4Supported
  • Hard reasoning

    A58.0Supported
  • Coding

    A84.5Supported
  • Human pref

    Unknown
  • Knowledge

    A60.5Preliminary
  • Multimodal

    A50.6Preliminary
  • Long context

    A73.9Preliminary

Each profile belongs to the named configuration. Capability scores use a shared panel for all axes, distinct from the overall ranking panel; they are not accuracy percentages or direct head-to-head wins.

Capability score evidence

Claude Opus 5 · Medium: 83.2 overall comparison score. Meets the overall evidence requirements.

6 areas measured. The available task mix affects this estimate; missing areas remain unknown.

Shared-result disagreement. This aggregate order conflicts with matched benchmark results against 3 other configurations. Different test coverage and opponents affect the fit. Inspect published results before treating the rank as conclusive.

Which sources carry the weight?
  • Cognition · 47.5% direct comparison weight · independent of the model provider
  • Artificial Analysis · 33.7% direct comparison weight · independent of the model provider
  • Datacurve · 18.8% direct comparison weight · independent of the model provider
Which benchmark families carry the weight?
  • FrontierCode · 47.5% direct comparison weight
  • DeepSWE · 18.8% direct comparison weight
  • Humanity’s Last Exam · 3.4% direct comparison weight
  • GPQA · 3.4% direct comparison weight
  • Critpt · 3.4% direct comparison weight
  • Other families (9) · 23.5% direct comparison weight

These shares describe direct comparison weight, not fractions of the final score or confidence. Source balancing does not give every family equal weight or remove correlations between overlapping sources.

DeepSWE v1.1 review: Epoch AI reported grading errors in at least 23 of 113 tasks. These published results remain included. Review their limitations in Epoch's review when interpreting this evidence.

How sensitive is this score?

The audit removes one source at a time and refits against the same overall reference panel. These published results use the matching dataset audited 2026-10-20.

Both ranks use the same surviving configurations for each removal. The cohort starts with 444 configurations supported in the original audit, including separate effort settings. These are diagnostic positions, not the default leaderboard ranks. Eligibility is not rechecked after removal.

What changes when a source is removed?
Removed sourceRank before → afterRank movementCohort remaining / lost supportScore after (change)
Artificial Analysis16 → 11Up 5203 remaining / 241 lost88.4 (+5.2 points)
ARC Prize16 → 17Down 1444 remaining / 0 lost85.1 (+1.9 points)
Datacurve16 → 14Up 2444 remaining / 0 lost83.2 (-0.0 points)
LiveCodeBench16 → 16No movement444 remaining / 0 lost83.2 (-0.0 points)
Scale16 → 16No movement444 remaining / 0 lost83.9 (+0.7 points)
Terminal-Bench16 → 16No movement444 remaining / 0 lost82.9 (-0.3 points)
Cognition16 → 34Down 18444 remaining / 0 lost68.7 (-14.5 points)
LiveBench16 → 17Down 1443 remaining / 1 lost84.0 (+0.8 points)
SWE-rebench16 → 17Down 1444 remaining / 0 lost83.0 (-0.2 points)
Epoch AI16 → 15Up 1431 remaining / 13 lost84.0 (+0.8 points)
Vals AI16 → 16No movement443 remaining / 1 lost82.6 (-0.6 points)
Provider reports · Anthropic16 → 16No movement444 remaining / 0 lost83.1 (-0.1 points)
Provider reports · Moonshot AI16 → 16No movement444 remaining / 0 lost83.0 (-0.2 points)
Provider reports · Meta16 → 16No movement444 remaining / 0 lost83.2 (-0.0 points)
Provider reports · Mistral16 → 16No movement444 remaining / 0 lost83.2 (+0.0 points)
Provider reports · OpenAI16 → 14Up 2444 remaining / 0 lost83.1 (-0.1 points)
All provider reports16 → 14Up 2444 remaining / 0 lost82.8 (-0.4 points)

Lost support means a configuration no longer has a comparison path to the complete reference panel. Its rank is unavailable. A surviving path alone does not establish leaderboard eligibility.

Overlapping sources may remain correlated even with source balancing. Leave-one-source-out movement is a sensitivity diagnostic, not a spread of source-specific ranks or a confidence measure. Scoring methodology · Dated configuration audit

Every benchmark family
Removed evidenceRecomputed scoreChange
frontiercode68.7-14.5
arc-agi84.8+1.6
mmmu-pro83.8+0.6
gdp-pdf83.6+0.4
gpqa83.6+0.4
automationbench83.5+0.4
terminal-bench82.8-0.3
ifbench82.9-0.3
arc-agi-382.9-0.3
aime83.0-0.2
livebench-instructions83.4+0.2
livebench-coding83.0-0.2
swe-atlas-test-writing83.0-0.2
swe-rebench83.0-0.2
gdpval83.4+0.2
terminal-bench-science83.0-0.2
simpleqa83.4+0.2
hle83.3+0.2
swe-atlas-qna83.0-0.1
epoch-game-puzzles83.0-0.1
livebench-language83.3+0.1
enigma-eval83.1-0.1
multi-swe-bench83.1-0.1
livebench-data83.3+0.1
mmlu-pro83.3+0.1
swe-atlas-refactoring83.1-0.1
frontiermath83.1-0.1
livebench-reasoning83.1-0.1
tau-bench83.1-0.1
aa-lcr83.1-0.1
analyst-agent83.1-0.1
livecodebench83.1-0.1
vibe-code83.1-0.1
livebench-math83.1-0.1
vals-legal-research83.1-0.1
enterprise-ops83.1-0.1
vals-tax-agent83.1-0.0
briefcase83.2+0.0
omniscience83.2+0.0
gmmlu83.2-0.0
math50083.2-0.0
vals-excel-modeling83.2-0.0
itbench83.2+0.0
apex-agents83.2+0.0
vals-code-migration83.2-0.0
critpt83.2+0.0
vals-finance-agent83.2+0.0
swe-bench-pro83.2+0.0
deepswe83.2-0.0
harvey83.2+0.0
What evidence is missing from the fit?

Across all collected settings for this model: 285 observations, 138 contributing, 2 matched without graph weight and 145 excluded. Counts do not establish rank eligibility.

  • 8 · Benchmark family or source protocol has not been reviewed
  • 5 · Original SciCode grading defects are under review; retained as supporting evidence, excluded from aggregate and capability scores. Corrected SciCode-Verified requires a separate protocol review. Sources: https://arxiv.org/abs/2608.04975 and https://artificialanalysis.ai/evaluations/scicode
  • 11 · Evaluator has not been reviewed for independent admission
  • 7 · Effort is not identified
  • 1 · One run-task used an Opus 4.8 refusal fallback; mixed checkpoint result excluded from ranking
  • 1 · Source discloses an Opus 4.8 refusal fallback; mixed checkpoint result excluded from ranking
  • 40 · No reviewed effort for this catalog observation; any separately collected effort measurement is counted separately
  • 19 · Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.
  • 1 · Historical provider claim; secondary and superseded for current FrontierSWE comparisons by the independent Proximal FrontierSWE v2 mean@5 board at https://www.frontierswe.com/. Version-unspecified claims are not v2 results. Excluded from weighted Overall.
  • 34 · Supporting evidence outside the reviewed capability core
  • 1 · Secondary GDPval-AA v2 leaderboard report; the original evaluator already supplies this exact configuration. Reprinted or rerated board snapshots are not additional evaluation evidence.
  • 3 · No matched opponent in this evaluation unit
  • 1 · Metric turns is outside the task-success core
  • 1 · Mixed source task revisions and best-of-three versus provider reporting prevent a uniform common-core unit.
  • 3 · Composite index or publisher-specific internal evaluation lacks a stable general-capability comparison unit.
  • 1 · Different native coding harnesses are mixed; exact shared agent configuration is not established.
  • 7 · Legacy self-report lacks a reviewed comparison configuration
  • 1 · Composite index or publisher-specific internal evaluation lacks a stable general-capability comparison unit. Composite index excluded to avoid double counting its ingredients.
Inspect every observation and exclusion →

Benchmark results

These are published benchmark scores. Supported effort estimates also appear on the Capability leaderboard. Results from different harnesses occupy different rows. Missing cells stay unknown; no scores are copied between effort levels.

Benchmark / sourceLowMediumHighXHighMaxUnspecified
AA-AnalystAgentArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Share of tasks solved on all 5 of 5 attempts · 80 tasks, 5 attempts per task · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

Not reportedNot reportedNot reportedNot reported
53.75%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
AA-Briefcase EloArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

AA-Briefcase v1.1 is an agentic knowledge work benchmark developed by Artificial Analysis. AA-Briefcase Elo is a combined metric that aggregates rubric pass rate, analytical quality Elo and presentation Elo · Higher is better · Evaluation results measured independently by Artificial Analysis

Unit: elo. Source collected 2026-10-18.

1,209.28 Elo
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

1,434.89 Elo
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

1,560.7 Elo
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

1,633.85 Elo
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

1,659.48 Elo
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
AA-LCR v1.1Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

81.33%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

82%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

79%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

80.33%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

79.33%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
AutomationBench-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Share of task objectives completed with no guardrail violations · Higher is better · Benchmark developed by Zapier · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

51.79%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

54.34%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

53.56%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

53.22%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

56.57%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
CritPtArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Benchmark developed by Argonne and UIUC, with contributions from 60+ researchers globally. CritPt is under review by its authors following external feedback · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

23.14%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

26.86%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

28.29%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

27.71%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

29.14%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
EnterpriseOps-Gym-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Overall task success rate across all eight enterprise domains (oracle tool mode) · Benchmark developed by ServiceNow Research · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

Not reportedNot reportedNot reportedNot reported
47.48%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
GDP.pdf: All-pass RateArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Share of attempts where every atomic criterion passed · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

17.2%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

20%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

19.6%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

21%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

21.6%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
GDPval-AA v2.1 LeaderboardArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Elo rating for performance on real-world work tasks · Anchored to DeepSeek V4.1 Flash (max) at 1600 · Higher is better · Evaluation results measured independently by Artificial Analysis

Unit: elo. Source collected 2026-10-18.

1,302.46 Elo
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

1,492.08 Elo
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

1,594.93 Elo
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

1,690.67 Elo
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

1,721.15 Elo
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
GPQA DiamondArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

88.89%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

91.92%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

93.74%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

93.74%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

93.23%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
Humanity's Last ExamArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

43.42%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

51.3%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

52.83%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

54.4%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

54.87%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
MLCR-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Share of tasks judged accurate, complete, and concise · Expert + compound (hard) sets · Benchmark developed by Wisedocs · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

53.89%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

56.11%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

59.44%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

58.33%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

55.56%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
MMMU-ProArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

79.83%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

81.62%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

82.43%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

83.99%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

84.74%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
AA-Omniscience IndexArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

AA-Omniscience Index (higher is better) measures knowledge reliability and hallucination. It rewards correct answers, penalizes hallucinations, and has no penalty for refusing to answer. Scores range from -100 to 100, where 0 means as many correct as incorrect answers, and negative scores mean more incorrect than correct. · Evaluation results measured independently by Artificial Analysis

Unit: index. Source collected 2026-10-18.

28.55
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

31.02
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

33.72
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

35.38
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

37.07
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
AA-Omniscience AccuracyArtificial Analysis · 6000 questions; 1 attempt; correct-answer share; GPT-5.6 Luna medium grader
Benchmark details

AA-Omniscience Accuracy (higher is better) measures the proportion of correctly answered questions out of all questions, regardless of whether the model chooses to answer · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

55.95%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

57.07%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

58.88%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

59.5%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

60.87%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
SciCodeArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Benchmark curated by scientists across 16 disciplines. SciCode is under review following an independent audit of the dataset · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

49.19%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

51.5%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

55.44%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

55.67%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

56.37%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
𝜏³-BankingArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Benchmark developed by Sierra Research · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

30.31%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

38.56%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

44.74%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

43.3%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

42.06%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
Terminal-Bench-Science 0.1Artificial Analysis · mini-swe-agent; Terminal-Bench-Science 0.1.0; 70 tasks; pass@1 averaged over 3 repeats
Benchmark details

Share of tasks passed (pass@1), averaged over three repeats · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

Not reportedNot reportedNot reportedNot reported
28.57%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
Terminal-Bench v2.1Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings
Benchmark details

Benchmark developed by the Laude Institute and open-source contributors · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

76.4%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

86.14%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

87.64%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

88.01%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

89.14%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
Terminal-Bench v4.0Artificial Analysis · mini-SWE-agent v2.4.6; 66 tasks; pass@1 averaged over 3 repeats; 500 steps; task timeout up to 8 hours
Benchmark details

Benchmark developed by the Laude Institute, Stanford, and open-source contributors · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis

Unit: percent. Source collected 2026-10-18.

26.26%
Reported settings

Claude Opus 5 (Low); Model source: https://artificialanalysis.ai/models/claude-opus-5-low

34.34%
Reported settings

Claude Opus 5 (Medium); Model source: https://artificialanalysis.ai/models/claude-opus-5-medium

45.96%
Reported settings

Claude Opus 5 (High); Model source: https://artificialanalysis.ai/models/claude-opus-5-high

46.46%
Reported settings

Claude Opus 5 (Xhigh); Model source: https://artificialanalysis.ai/models/claude-opus-5-xhigh

48.99%
Reported settings

Claude Opus 5 (Max); Model source: https://artificialanalysis.ai/models/claude-opus-5

Not reported
ARC-AGI-2ARC Prize · v2 Semi-Private
Benchmark details

Original public board. Configuration and task coverage may differ; inspect source.

Unit: percent. Source collected 2026-10-18.

Not reportedNot reported
88.33%
Reported settings

Claude Opus 5 (High); Source model ID: anthropic-claude-opus-5-high; 120 tasks

Not reported
90.42%
Reported settings

Claude Opus 5 (Max); Source model ID: anthropic-claude-opus-5-max; 120 tasks

Not reported
DeepSWE v1.1Datacurve · mini-swe-agent
Benchmark details

Original public board. Configuration and task coverage may differ; inspect source.

Unit: percent. Source collected 2026-10-18.

58.1%
Reported settings

claude-opus-5; Reported effort: low; 113 unique tasks; 449 attempts; 4 runs

68.9%
Reported settings

claude-opus-5; Reported effort: medium; 113 unique tasks; 447 attempts; 4 runs

72.8%
Reported settings

claude-opus-5; Reported effort: high; 113 unique tasks; 449 attempts; 4 runs

73.2%
Reported settings

claude-opus-5; Reported effort: xhigh; 113 unique tasks; 447 attempts; 4 runs

73.6%
Reported settings

claude-opus-5; Reported effort: max; 113 unique tasks; 444 attempts; 4 runs

Not reported
VulcanBench v3 · Report 10VulcanBench · VulcanBench bare-bones API loop, deterministic hidden tests in Docker
Benchmark details

Frozen v3, 23 post-cutoff repository tasks. Published pass@1; repeat counts and time budgets vary by report. Display only pending comparability review.

Unit: percent. Source collected 2026-10-18.

87%
Reported settings

Claude Opus 5; source label: low; low effort; 23 tasks; evaluation 2026-07-26. See source for repeat counts and wall-clock budget.

82.6%
Reported settings

Claude Opus 5; source label: medium; medium effort; 23 tasks; evaluation 2026-07-26. See source for repeat counts and wall-clock budget.

78.3%
Reported settings

Claude Opus 5; source label: high; high effort; 23 tasks; evaluation 2026-07-26. See source for repeat counts and wall-clock budget.

Not reportedNot reportedNot reported
ARC-AGI-3 · standardARC Prize · Standard
Benchmark details

ARC-AGI-3; Standard. Open each result for its exact effort, task subset, metric and protocol details.

Unit: percent. Source collected 2026-10-18.

Not reportedNot reported
30.16%
Reported settings

ARC-AGI-3 Semi-Private verified summary; Standard harness; source group anthropic-claude-opus-5; variant high; public-demo task scores are excluded

Not reportedNot reportedNot reported
FrontierCode 1.1 · extended-claude-codeCognition · claude-code
Benchmark details

FrontierCode 1.1; claude-code. Open each result for its exact effort, task subset, metric and protocol details.

Unit: percent. Source collected 2026-10-18.

55.75%
Reported settings

FrontierCode 1.1; extended; 150 tasks; claude-code; source effort low; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0041

63.63%
Reported settings

FrontierCode 1.1; extended; 150 tasks; claude-code; source effort medium; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.004

58.45%
Reported settings

FrontierCode 1.1; extended; 150 tasks; claude-code; source effort high; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0013

56.87%
Reported settings

FrontierCode 1.1; extended; 150 tasks; claude-code; source effort xhigh; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0097

58.94%
Reported settings

FrontierCode 1.1; extended; 150 tasks; claude-code; source effort max; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0067

Not reported
FrontierCode 1.1 · main-claude-codeCognition · claude-code
Benchmark details

FrontierCode 1.1; claude-code. Open each result for its exact effort, task subset, metric and protocol details.

Unit: percent. Source collected 2026-10-18.

41.95%
Reported settings

FrontierCode 1.1; main; 100 tasks; claude-code; source effort low; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0021

53.38%
Reported settings

FrontierCode 1.1; main; 100 tasks; claude-code; source effort medium; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.006

47.99%
Reported settings

FrontierCode 1.1; main; 100 tasks; claude-code; source effort high; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.002

43.65%
Reported settings

FrontierCode 1.1; main; 100 tasks; claude-code; source effort xhigh; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0144

48.04%
Reported settings

FrontierCode 1.1; main; 100 tasks; claude-code; source effort max; weighted rubric score, not pass rate; unfair internet runs zeroed by evaluator; flag rate 0.0101

Not reported
What these comparisons mean

Each source reports its own effort labels. Matching labels do not establish equal compute budgets or identical fallback behavior. Open Reported settings to inspect the exact model name, agent and task coverage. Multiple results at one level remain visible rather than selecting the best. Source-reported None or Non-reasoning labels are not treated as evidence that an API supports those settings.

These measurements use their own dated source collection. The leaderboard fits identified configurations jointly; it contains no pooled model ratings. Explicit thinking budgets are separate configurations. Read the methodology.

Download all effort benchmark results · 8,915 results across 259 models · Collected 2026-10-18