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RankingClaude Opus 5

Claude Opus 5

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Data updated 22 Oct 2026

78 published benchmark measures · 22 benchmark families contribute across 6 task areas. 4 capability estimates available in the full profile. See all results ↓ · Compare published benchmarks →

Model evidence summary

This profile combines published settings. It is not a runnable configuration or a leaderboard rank. Compare measured configurations →

Performance profile

Capabilities

Adjusted comparison score · 0–100
Claude Opus 5 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 · Agentic: 82.9 · SupportedClaude Opus 5 · Hard reasoning: 75.3 · SupportedClaude Opus 5 · Coding: 92.7 · SupportedClaude Opus 5 · Multimodal: 49.4 · Preliminary

Filled points are supported; hollow points are preliminary. Lines stop at unknown capabilities. Exact values and sources follow below.

Agentic8 families · 2 with independent evidence · Supported82.9

8 core families; 54 direct opponents across 17 labs.

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: 79.3–88.3; 0/13 scenarios unsupported. Without one publisher: 77.4–87.3; 0/15 unsupported. Smoothing check: 74.4–87.3; 0/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage; source sensitivity still requires inspection. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Hard reasoning4 families · 1 with independent evidence · Supported75.3

4 core families; 60 direct opponents across 10 labs.

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: 60.8–80.1; 0/6 scenarios unsupported. Without one publisher: 67.6–77.8; 0/16 unsupported. Smoothing check: 68.5–78.6; 0/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Coding4 families · 2 with independent evidence · Supported92.7

4 core families; 35 direct opponents across 9 labs.

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: 88.2–94.6; 0/6 scenarios unsupported. Without one publisher: 87.5–93.9; 0/19 unsupported. Smoothing check: 84.3–96.3; 0/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Human pref1 families · 1 with independent evidence · PreliminaryUnknown

1 core families; 76 direct opponents across 17 labs. No connected comparison to the complete reference panel

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 1/1 scenarios unsupported. Without one publisher: No supported estimate; 1/1 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: cross-family and cross-publisher predictions could not be evaluated from the available comparison network. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

  • Human preference (Arena): 97.4 observed win share
    lmarena.ai · Source 1
Knowledge2 families · 0 with independent evidence · PreliminaryUnknown

2 core families; 2 direct opponents across 1 labs. No connected comparison to the complete reference panel

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 4/4 scenarios unsupported. Without one publisher: No supported estimate; 5/5 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: almost no publisher-held-out comparisons remained estimable. Cross-source validity is unresolved. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

  • Gmmlu: 0.0 observed win share
    Anthropic · Source 1
  • Milu: 0.0 observed win share
    Anthropic · Source 1
Multimodal3 families · 0 with independent evidence · Preliminary49.4

3 core families; 7 direct opponents across 3 labs. Needs broader benchmark and opponent support

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 8/8 scenarios unsupported. Without one publisher: No supported estimate; 8/8 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: limited publisher-held-out coverage. Cross-source validity is unresolved. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Long contextNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 5/5 scenarios unsupported. Without one publisher: No supported estimate; 5/5 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts underperformed neutral predictions. Treat this as an exploratory estimate. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

    Scores estimate outcomes against a shared reference panel; they are not accuracy percentages. Sparse or disconnected evidence cannot qualify an overall profile. Open a capability to inspect its evidence.

    Reported effort · Mixed settings

    Settings reported in this model's published benchmark results, including results outside the aggregate. Effort names are provider-specific. These are not API defaults or equal compute budgets.

    Mixed settings means multiple settings occur in the evidence. Best across efforts means the source selected its best reported result across settings; it does not mean Max. Unspecified settings stay unknown. This model-summary chart combines reported settings. The leaderboard keeps identified configurations separate and excludes unknown effort.

    Inspect each result and its source ↓ · Download effort evidence
    Score contributions and missing evidence

    22 contributing families across 6 capabilities. Fixed reference panels do not change when the catalog expands.

    Capability is fitted jointly across families. Capability estimates below describe different task areas; their weighted sum is not the Capability score.

    Results without reviewed compatibility or a reference match remain in the raw evidence below. Coverage counts only contributing results.

    Model information & shareable badge
    Lab
    Anthropic
    Catalog status
    active
    Availability
    Public provider catalog; account and region restrictions may apply
    Family
    Claude Opus
    Released
    —
    Context
    1,000,000 tokens
    License
    proprietary
    Model card
    https://platform.claude.com/docs/en/about-claude/model-deprecations
    Default Capability family coverage
    Documented-evidence family coverage/badge/claude-opus-5.svg
    Benchmark scores & sources

    Original results, evaluation harnesses, and evidence behind this model.

    BenchmarkBucketScoreHarnessEvidenceSource-recorded date
    GDP.PDFAgentic37%
    Reported settings & source

    All-pass rate; allmodels selfcomputed byGoogle

    Gemini3.8Flash Model Card · Model card page5 Results table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    GDPval-AAAgentic1721Artificial Analysis GDPval-AA

    Effort: Not specified

    contributes to capability    		official board2026-10-22
    GDPval-AA · 2Agentic1824
    Reported settings & source

    Artificial Analysis independent agentic shell/web evaluation;220GDPvalgoldtasks; blind pairwise Elo; max effort for Claude.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.1.A;8.15.3 · reviewed 2026-10-18

    		Published configuration

    Effort: Max

    contributes to capability    		lab self-reportReviewed 2026-10-18
    GDPval-AA · 2Agentic1824
    Reported settings & source

    Artificial Analysis publicboard snapshot; effort as reported

    Gemini3.8Flash Model Card · Model card page5 Results table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    GDPval-AA · 2Agentic1824
    Reported settings & source

    Artificial Analysis Stirrup shell/web harness;220tasks; blind pairwise comparisons; reasoning max

    Muse Spark1.3 evaluation methodology · PDF page4 performance table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    GMMLUKnowledge92.5%
    Reported settings & source

    Mean accuracy42languages; adaptive max; one trial; no tools/custom system prompts.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.18.1 · reviewed 2026-10-18

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-10-18
    GPQA DiamondHard reasoning93.232%GPQA Diamond reported

    Effort: Not specified

    contributes to capability    		independent repro2026-09-29
    GPQA Diamond · not specifiedHard reasoning93.7%
    Reported settings & source

    Maximum reported across reasoning efforts; OpenAI research environment or API

    Provider-published result; comparator measurements are not automatically independently reproduced.

    GPT-6 Astra: A new generation of intelligence · Academic table / GPQA Diamond / Claude Opus 5 · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    Harvey Legal Agent Benchmark · source release snapshot; version not specifiedSupporting evidence6.7%
    Reported settings & source

    Google launch chart; benchmark methodology linked on page; reported comparator settings vary.

    First-party reported result; comparator results retain the source evaluation setup.

    Gemini 3.8 Flash launch performance · Performance table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    		lab self-report

    Supporting evidence outside the reviewed capability core

    		Reviewed 2026-09-06
    HealthBenchSupporting evidence67.1%
    Reported settings & source

    Raw rubric score; adaptive max; five trials; no tools/custom system prompt; Opus4.8grader; Fable5.1 safety fallback toOpus5.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.17 · reviewed 2026-10-18

    		Published configuration

    Effort: Not specified

    		lab self-report

    Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.

    		Reviewed 2026-10-18
    HealthBench ProfessionalSupporting evidence73.4%
    Reported settings & source

    Raw rubric score; adaptive max; five trials; no tools/custom system prompt; Opus4.8grader; Fable5.1 safety fallback toOpus5.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.17 · reviewed 2026-10-18

    		Published configuration

    Effort: Not specified

    		lab self-report

    Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.

    		Reviewed 2026-10-18
    HealthBench ProfessionalSupporting evidence59.8%
    Reported settings & source

    Length-adjusted score; HealthBench Professional paper method; no tools; Opus4.8grader; five trials.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.1.A;8.17.2 · reviewed 2026-10-18

    		Published configuration

    Effort: Not specified

    		lab self-report

    Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.

    		Reviewed 2026-10-18
    HealthBench Professional (length-adjusted) · not specifiedSupporting evidence56.4%
    Reported settings & source

    Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted; OpenAI reproduction; GPT-5.4 grader; unclipped

    Provider-published result; comparator measurements are not automatically independently reproduced.

    GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / Claude Opus 5 · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    		lab self-report

    Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.

    		Reviewed 2026-09-06
    HLE-Verified · source release snapshot; version not specifiedHard reasoning54.4%
    Reported settings & source

    Google launch chart; benchmark methodology linked on page; reported comparator settings vary.

    First-party reported result; comparator results retain the source evaluation setup.

    Gemini 3.8 Flash launch performance · Performance table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    Humanity's Last ExamHard reasoning56.6%HLE no tools

    Effort: Not specified

    		lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    		2026-09-01
    Humanity's Last ExamHard reasoning56.3%HLE no tools

    Effort: Not specified

    		lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    		2026-07-24
    Humanity's Last ExamHard reasoning63.6%HLE with tools

    Effort: Not specified

    		lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    		2026-09-01
    Humanity's Last ExamHard reasoning64.7%HLE with tools

    Effort: Not specified

    		lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    		2026-07-24
    Humanity’s Last ExamHard reasoning56.6%
    Reported settings & source

    Full2500questions; no tools; auto thinking;1Mtotal token cap; no compaction; Opus4.6grader; restricted fetch and contamination review for tools.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A;8.12.1 · reviewed 2026-10-18

    		Published configuration

    Effort: Auto thinking

    contributes to capability    		lab self-reportReviewed 2026-10-18
    Humanity’s Last ExamHard reasoning63.6%
    Reported settings & source

    Full2500questions; with tools; auto thinking;1Mtotal token cap; no compaction; Opus4.6grader; restricted fetch and contamination review for tools.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A;8.12.1 · reviewed 2026-10-18

    		Published configuration

    Effort: Auto thinking

    contributes to capability    		lab self-reportReviewed 2026-10-18
    Humanity's Last Exam (w/ tools) · not specifiedHard reasoning63.6%
    Reported settings & source

    Maximum reported across reasoning efforts; OpenAI research environment or API; tools enabled

    Provider-published result; comparator measurements are not automatically independently reproduced.

    GPT-6 Astra: A new generation of intelligence · Academic table / Humanity's Last Exam (w/ tools) / Claude Opus 5 · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    contributes to capability    		lab self-reportReviewed 2026-09-06
    Humanity's Sixth SenseSupporting evidence30.5%HSS · max

    Effort: max

    Reported settings

    Full 522-task pass@1, task mean of three attempts; every rubric criterion must pass. 95% task-cluster bootstrap CI. Claude-Opus-5 judge. Scale AI + Elorian. Unversioned board; source hashes identify captures. Display only. Excluded from weighted Overall. Source-recorded date is the capture date, not a proven evaluation date.

    		official board

    Supporting evidence outside the reviewed capability core

    		2026-10-22
    JobBenchSupporting evidence65.7%
    Reported settings & source

    65tasks; mean rubric score; official OpenCode harness and file-aware grader; reasoning max

    Muse Spark1.3 evaluation methodology · PDF page4 performance table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    		lab self-report

    Supporting evidence outside the reviewed capability core

    		Reviewed 2026-09-06
    LABBench · 2Supporting evidence84.2%
    Reported settings & source

    Selfcomputed; Linuxterminal,bioinfotools,Python,R,network; macroaverage11subtasks

    Gemini3.8Flash Model Card · Model card page5 Results table · reviewed 2026-09-06

    		Published configuration

    Effort: Not specified

    		lab self-report

    Narrow specialist biological, medical or security evaluation; preserved as raw evidence outside general capability scoring.

    		Reviewed 2026-09-06
    LMArena Agent ArenaSupporting evidence8.09 LMArena Agent Arena · max

    Effort: Not specified

    		official board

    Supporting evidence outside the reviewed capability core

    		2026-10-20