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
    SWE-bench MultimodalSupporting evidence59.4%
    Reported settings & source

    Anthropic reported configuration; adaptive thinking at max effort, default sampling, five-trial mean unless section specifies otherwise; context at most 1M. Comparator configuration follows cited prior card or board. Agent identity is not established as mini-swe-agent.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A; section 8.2 · reviewed 2026-10-18

    Published configuration

    Effort: Not specified

    lab self-report

    Supporting evidence outside the reviewed capability core

    Reviewed 2026-10-18
    SWE-bench ProCoding79.2%SWE-bench Pro reported

    Effort: Not specified

    lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    2026-07-24
    SWE-bench ProCoding79.2%
    Reported settings & source

    Anthropic reported configuration; adaptive thinking at max effort, default sampling, five-trial mean unless section specifies otherwise; context at most 1M. Comparator configuration follows cited prior card or board. Agent identity is not established as mini-swe-agent.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A; section 8.2 · reviewed 2026-10-18

    Published configuration

    Effort: Not specified

    contributes to capability
    lab self-reportReviewed 2026-10-18
    SWE-bench VerifiedCoding96%SWE-bench Verified official

    Effort: Not specified

    lab self-report

    Legacy self-report lacks a reviewed comparison configuration

    2026-07-24
    SWE-sweepSupporting evidence1.28%SWE-sweep · xhigh

    Effort: Not specified

    official board

    Supporting evidence outside the reviewed capability core

    2026-09-24
    Terminal-Bench · 2.1Coding89.1%
    Reported settings & source

    Terminus2only; Gemini selfcomputed, othermodels officialboard/ArtificialAnalysis

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

    Published configuration

    Effort: Not specified

    lab self-report

    Terminal-Bench coding slot admits version 4.0 only. Earlier versions remain stored and are not mixed into that slot.

    Reviewed 2026-09-06
    Terminal-Bench · 2.1Coding86.7%
    Reported settings & source

    89tasks; each model nativecoding harness in internalframework/cloudsandbox; officialverifier; GPT owncard; reasoning max; native harness family: Anthropic (exact harness revision not specified)

    Native harnesses differ; not a Terminus2-only comparison.

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

    Published configuration

    Effort: Not specified

    lab self-report

    Different native coding harnesses are mixed; exact shared agent configuration is not established.

    Reviewed 2026-09-06
    Terminal-Bench · 4.0Coding52.3%
    Reported settings & source

    Claude Code --bare max effort, 15 trials/task over 66 tasks; Anthropic internal reruns.

    Uses more precise section values rather than rounded headline table. Distinct from2.1; timeouts/resources changed.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.6 · reviewed 2026-10-18

    Published configuration

    Effort: Max

    contributes to capability
    lab self-reportReviewed 2026-10-18
    Terminal-Bench · 4.0Coding51.8%
    Reported settings & source

    Officialpublicboard highest scoring thinking level; nativeagents may differ

    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
    Terminal-Bench 4.0Coding53.94%Terminal-Bench 4.0 reported

    Effort: Not specified

    contributes to capability
    official board2026-07-24
    Terminal-Bench 4.0 · 4.0Coding52.6%
    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 · Coding table / Terminal-Bench 4.0 / Claude Opus 5 · reviewed 2026-09-06

    Published configuration

    Effort: Not specified

    contributes to capability
    lab self-reportReviewed 2026-09-06
    Terminal-Bench Science 0.1 · not specifiedAgentic30%
    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 / Terminal-Bench Science 0.1 / Claude Opus 5 · reviewed 2026-09-06

    Published configuration

    Effort: Not specified

    contributes to capability
    lab self-reportReviewed 2026-09-06
    Terminal-Bench-Science · 0.1Coding29%
    Reported settings & source

    70tasks; Claude Code --bare max; Fable10trials/task, Opus12; GPT Codex CLI max from public board.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.7 · reviewed 2026-10-18

    Published configuration

    Effort: Not specified

    lab self-report

    Terminal-Bench coding slot admits version 4.0 only. Earlier versions remain stored and are not mixed into that slot.

    Reviewed 2026-10-18
    ThinkingBox-BenchSupporting evidence66.5%ThinkingBox-Bench pass@1

    Effort: Not specified

    official board

    Supporting evidence outside the reviewed capability core

    2026-10-03
    Toolathlon · Verified June2026Agentic80.6%
    Reported settings & source

    Pass@1;108tasks/three trials; internal harness; max effort; Fable safeguards+Opus4.8fallback; Opus safeguards/fallback disabled; pinned containers/data.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.15.5.A · reviewed 2026-10-18

    Published configuration

    Effort: Max

    lab self-report

    No matched opponent in this evaluation unit

    Reviewed 2026-10-18
    Toolathlon · Verified June2026Agentic87%
    Reported settings & source

    Pass@3;108tasks/three trials; internal harness; max effort; Fable safeguards+Opus4.8fallback; Opus safeguards/fallback disabled; pinned containers/data.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.15.5.A · reviewed 2026-10-18

    Published configuration

    Effort: Max

    lab self-report

    No matched opponent in this evaluation unit

    Reviewed 2026-10-18
    Toolathlon · Verified June2026Agentic73.1%
    Reported settings & source

    Pass³;108tasks/three trials; internal harness; max effort; Fable safeguards+Opus4.8fallback; Opus safeguards/fallback disabled; pinned containers/data.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.15.5.A · reviewed 2026-10-18

    Published configuration

    Effort: Max

    lab self-report

    No matched opponent in this evaluation unit

    Reviewed 2026-10-18
    Toolathlon · Verified June2026Agentic23.5 turns
    Reported settings & source

    average turns;108tasks/three trials; internal harness; max effort; Fable safeguards+Opus4.8fallback; Opus safeguards/fallback disabled; pinned containers/data.

    Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table8.15.5.A · reviewed 2026-10-18

    Published configuration

    Effort: Max

    lab self-report

    Metric turns is outside the task-success core

    Reviewed 2026-10-18
    VulcanBench v3Supporting evidence78.3%VulcanBench v3 bare-bones API · Report 10 · high

    Effort: Not specified

    official board

    Supporting evidence outside the reviewed capability core

    2026-07-26
    VulcanBench v3Supporting evidence87%VulcanBench v3 bare-bones API · Report 10 · low

    Effort: Not specified

    official board

    Supporting evidence outside the reviewed capability core

    2026-07-26
    VulcanBench v3Supporting evidence82.6%VulcanBench v3 bare-bones API · Report 10 · medium

    Effort: Not specified

    official board

    Supporting evidence outside the reviewed capability core

    2026-07-26
    LiveCodeBenchCoding————
    MMLU-ProKnowledge————
    Terminal-Bench 2.1Agentic————