Benchmarks

27 results across 13 benchmarks

Benchmark results for Claude Sonnet 4.5
BenchmarkScoreSource
GPQA Diamond — Epoch AI harnessConfiguration: Epoch AI harness73.7%epoch.ai for Claude Sonnet 4.5 on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness (opens in a new tab)Archived copy (opens in a new tab)GPQA Diamond AccuracyReported Evaluated Benchmark leaderboardEpoch AIIndependentRecord for Claude Sonnet 4.5 on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness
GPQA Diamond — Vals AI harnessReported as: thinkingConfiguration: Vals AI harness: mean of zero-shot and few-shot CoT81.6%vals.ai for Claude Sonnet 4.5 (thinking) on Graduate-Level Google-Proof Q&A Diamond — Vals AI harness (opens in a new tab)Archived copy (opens in a new tab)GPQA Diamond AccuracyReported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on Graduate-Level Google-Proof Q&A Diamond — Vals AI harness
Humanity's Last Exam Full set — Scale AI evaluation7.5%labs.scale.com for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab)Archived copy (opens in a new tab)Humanity's Last Exam AccuracyReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation
Humanity's Last Exam Full set — Scale AI evaluationReported as: thinking13.7%labs.scale.com for Claude Sonnet 4.5 (thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab)Archived copy (opens in a new tab)Humanity's Last Exam AccuracyReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation
Humanity's Last Exam Text only — Scale AI evaluation7.7%labs.scale.com for Claude Sonnet 4.5 on Humanity's Last Exam Text only — Scale AI evaluation (opens in a new tab)Archived copy (opens in a new tab)Humanity's Last Exam AccuracyReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on Humanity's Last Exam Text only — Scale AI evaluation
Humanity's Last Exam Text only — Scale AI evaluationReported as: thinking14.1%labs.scale.com for Claude Sonnet 4.5 (thinking) on Humanity's Last Exam Text only — Scale AI evaluation (opens in a new tab)Archived copy (opens in a new tab)Humanity's Last Exam AccuracyReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on Humanity's Last Exam Text only — Scale AI evaluation
MCP Atlas Public, April 2026 updateReported as: thinking59.5%labs.scale.com for Claude Sonnet 4.5 (thinking) on MCP Atlas Public, April 2026 update (opens in a new tab)Pass rateReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on MCP Atlas Public, April 2026 update
MMLU-Pro Original — Vals AI harnessReported as: thinkingConfiguration: Vals AI harness87.4%vals.ai for Claude Sonnet 4.5 (thinking) on MMLU-Pro Original — Vals AI harness (opens in a new tab)Archived copy (opens in a new tab)AccuracyReported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on MMLU-Pro Original — Vals AI harness
MMMU-Pro Vals AI harnessReported as: thinkingConfiguration: Vals AI harness79.3%vals.ai for Claude Sonnet 4.5 (thinking) on MMMU-Pro Vals AI harness (opens in a new tab)Archived copy (opens in a new tab)MMMU-Pro accuracySetting: Standard (4 options)Reported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on MMMU-Pro Vals AI harness
OSWorld Verified — 100 stepsConfiguration: 100-step limit62.9%os-world.github.io for Claude Sonnet 4.5 on OSWorld Verified — 100 steps (opens in a new tab)Archived copy (opens in a new tab)OSWorld-Verified success rateReported Benchmark leaderboardOSWorldIndependentXLang LabRecord for Claude Sonnet 4.5 on OSWorld Verified — 100 steps
OSWorld Verified — 15 stepsConfiguration: 15-step limit42.9%os-world.github.io for Claude Sonnet 4.5 on OSWorld Verified — 15 steps (opens in a new tab)Archived copy (opens in a new tab)OSWorld-Verified success rateReported Benchmark leaderboardOSWorldIndependentXLang LabRecord for Claude Sonnet 4.5 on OSWorld Verified — 15 steps
OSWorld Verified — 50 stepsConfiguration: 50-step limit58.1%os-world.github.io for Claude Sonnet 4.5 on OSWorld Verified — 50 steps (opens in a new tab)Archived copy (opens in a new tab)OSWorld-Verified success rateReported Benchmark leaderboardOSWorldIndependentXLang LabRecord for Claude Sonnet 4.5 on OSWorld Verified — 50 steps
SimpleQA Verified Original — Epoch AI harnessConfiguration: Epoch AI harness23.7%epoch.ai for Claude Sonnet 4.5 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab)Archived copy (opens in a new tab)AccuracyReported Evaluated Benchmark leaderboardEpoch AIIndependentRecord for Claude Sonnet 4.5 on SimpleQA Verified Original — Epoch AI harness
SWE-bench Multilingual — mini-swe-agentConfiguration: mini-swe-agent harness67.0%github.com for Claude Sonnet 4.5 on SWE-bench Multilingual — mini-swe-agent (opens in a new tab)Archived copy (opens in a new tab)Resolved TasksReported Benchmark repositorySWE-benchIndependentSWE-bench TeamRecord for Claude Sonnet 4.5 on SWE-bench Multilingual — mini-swe-agent
SWE-bench VerifiedReported as: extended thinking (200K)77.2%anthropic.com for Claude Sonnet 4.5 (extended thinking (200K)) on SWE-bench Verified (opens in a new tab)Resolved TasksReported Launch postAnthropicSelf-reportedRecord for Claude Sonnet 4.5 on SWE-bench Verified
SWE-bench Verified — Epoch AI harnessConfiguration: Epoch AI harness71.3%epoch.ai for Claude Sonnet 4.5 on SWE-bench Verified — Epoch AI harness (opens in a new tab)Archived copy (opens in a new tab)Resolved TasksReported Evaluated Benchmark leaderboardEpoch AIIndependentRecord for Claude Sonnet 4.5 on SWE-bench Verified — Epoch AI harness
SWE-bench Verified — mini-swe-agentEffort: HighConfiguration: mini-swe-agent harness71.4%github.com for Claude Sonnet 4.5 (high) on SWE-bench Verified — mini-swe-agent (opens in a new tab)Archived copy (opens in a new tab)Resolved TasksReported Benchmark repositorySWE-benchIndependentSWE-bench TeamRecord for Claude Sonnet 4.5 on SWE-bench Verified — mini-swe-agent
SWE-bench Verified — mini-swe-agentConfiguration: mini-swe-agent harness70.6%github.com for Claude Sonnet 4.5 on SWE-bench Verified — mini-swe-agent (opens in a new tab)Archived copy (opens in a new tab)Resolved TasksReported Benchmark repositorySWE-benchIndependentSWE-bench TeamRecord for Claude Sonnet 4.5 on SWE-bench Verified — mini-swe-agent
SWE-bench Verified — Vals AI mini-swe-agentReported as: thinkingConfiguration: mini-swe-agent harness70.0%vals.ai for Claude Sonnet 4.5 (thinking) on SWE-bench Verified — Vals AI mini-swe-agent (opens in a new tab)Archived copy (opens in a new tab)Resolved TasksReported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on SWE-bench Verified — Vals AI mini-swe-agent
SWE-bench Pro Public — Scale AI SWE-AgentConfiguration: SWE-Agent harness, 250 turns, uncapped cost43.6%labs.scale.com for Claude Sonnet 4.5 on SWE-bench Pro Public — Scale AI SWE-Agent (opens in a new tab)Archived copy (opens in a new tab)Public tasks resolvedReported Benchmark leaderboardScale AIIndependentRecord for Claude Sonnet 4.5 on SWE-bench Pro Public — Scale AI SWE-Agent
Terminal-Bench 2.0 — Vals AI Terminus 2Reported as: thinkingConfiguration: Terminus-2 harness41.6%vals.ai for Claude Sonnet 4.5 (thinking) on Terminal-Bench 2.0 — Vals AI Terminus 2 (opens in a new tab)Archived copy (opens in a new tab)Terminal-Bench AccuracyReported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on Terminal-Bench 2.0 — Vals AI Terminus 2
Toolathlon Original38.9%toolathlon.xyz for Claude Sonnet 4.5 on Toolathlon Original (opens in a new tab)Archived copy (opens in a new tab)Tasks completedReported Benchmark leaderboardToolathlonIndependentToolathlon AuthorsRecord for Claude Sonnet 4.5 on Toolathlon Original
Vibe Code Bench 1.1 — OpenHands, October 2026 evaluationReported as: thinkingConfiguration: OpenHands harness22.6%vals.ai for Claude Sonnet 4.5 (thinking) on Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation (opens in a new tab)Archived copy (opens in a new tab)Vibe Code Bench ScoreReported Benchmark leaderboardVals AIIndependentRecord for Claude Sonnet 4.5 on Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation
τ³-bench τ³ — AirlineReported as: enabled72.0%sierra-tau-bench-public.s3.us-west-2.amazonaws.com for Claude Sonnet 4.5 (enabled) on τ³-bench τ³ — Airline (opens in a new tab)Archived copy (opens in a new tab)Task success rateReported Evaluated Benchmark leaderboardSierraIndependentSierra ResearchRecord for Claude Sonnet 4.5 on τ³-bench τ³ — Airline
τ³-bench τ³ — Banking, Terminal retrieval, v1.0.1 gradingReported as: enabledConfiguration: Terminal retrieval25.3%sierra-tau-bench-public.s3.us-west-2.amazonaws.com for Claude Sonnet 4.5 (enabled) on τ³-bench τ³ — Banking, Terminal retrieval, v1.0.1 grading (opens in a new tab)Archived copy (opens in a new tab)Task success rateReported Evaluated Benchmark leaderboardSierraIndependentSierra ResearchRecord for Claude Sonnet 4.5 on τ³-bench τ³ — Banking, Terminal retrieval, v1.0.1 grading
τ³-bench τ³ — RetailReported as: enabled72.4%sierra-tau-bench-public.s3.us-west-2.amazonaws.com for Claude Sonnet 4.5 (enabled) on τ³-bench τ³ — Retail (opens in a new tab)Archived copy (opens in a new tab)Task success rateReported Evaluated Benchmark leaderboardSierraIndependentSierra ResearchRecord for Claude Sonnet 4.5 on τ³-bench τ³ — Retail
τ³-bench τ³ — TelecomReported as: enabled84.9%sierra-tau-bench-public.s3.us-west-2.amazonaws.com for Claude Sonnet 4.5 (enabled) on τ³-bench τ³ — Telecom (opens in a new tab)Archived copy (opens in a new tab)Task success rateReported Evaluated Benchmark leaderboardSierraIndependentSierra ResearchRecord for Claude Sonnet 4.5 on τ³-bench τ³ — Telecom