# Claude Fable 5.2 Benchmark Scores & Performance

> Claude Fable 5.2 by Anthropic scores 91.19/100 overall, ranking #1 out of 1020 AI models.

Canonical page: https://benchlm.ai/models/claude-fable-5-2

Last updated: November 9, 2026

## Model Details

| Property | Value |
|----------|-------|
| Creator | Anthropic |
| Source Type | Proprietary |
| Reasoning Type | Reasoning |
| Context Window | 1M |
| Official model card | [Claude Fable 5.2 and Claude Mythos 5.2 system card](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| Overall Score | 91.19/100 |
| Overall Rank | #1 of 1020 |

## Family & Coverage

- Family: Claude Fable
- Variant: base
- Benchmarks covered: 55 of 788
- Sibling models: [Claude Fable 5.1](/models/claude-fable-5-1), [Claude Fable 5](/models/claude-fable)
- Related earlier model: [Claude Fable 5.1](/models/claude-fable-5-1)
- Coverage note: BenchLM currently has partial benchmark coverage for this model, so the overall score is conservative.

## Agentic Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [Terminal-Bench 4.0](/benchmarks/terminal-bench) | 67.60% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [Terminal-Bench-Science 0.1](/benchmarks/terminal-bench-science) | 74.6% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [AutomationBench](/benchmarks/automationbench) | 51.4% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [OSWorld 2.1 Offline](/benchmarks/osworld-2-1-offline) | 89.3% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [GDPval-AA](/benchmarks/gdpvalaa) | 1831 | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [AA Briefcase](/benchmarks/aabriefcaseelo) | 1785 | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [AA-Briefcase (rubric)](/benchmarks/aabriefcaserubric) | 66.1% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [WANDR](/benchmarks/wandr) | 82.1% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [Remote Labor Index](/benchmarks/rliautomationrate) | 41.3% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [RoboDojo Sim](/benchmarks/robodojosim) | 64.9% | [Anthropic: Introducing Claude Fable 5.2 and Claude Mythos 5.2, November 9, 2026](https://www.anthropic.com/claude-fable-and-mythos-5-2) |
| [Harvey LAB-AA v1.1](/benchmarks/harvey-lab-aa-v1-1) | 7.2% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [DRACO](/benchmarks/draco) | 87.7% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [Real-World Finance v2](/benchmarks/realworldfinancev2) | 1637 | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [AA AutomationBench](/benchmarks/aaautomationbench) | 76.4% | [Artificial Analysis: automationbench-aa leaderboard](https://artificialanalysis.ai/evaluations/automationbench-aa) |
| [AA Terminal-Bench 4.0](/benchmarks/terminal-bench) | 59.6% | [Artificial Analysis: terminalbench-v4-0 leaderboard](https://artificialanalysis.ai/evaluations/terminalbench-v4-0) |
| [GDP.pdf](/benchmarks/aagdppdf) | 24.2% | [Artificial Analysis: gdp-pdf leaderboard](https://artificialanalysis.ai/evaluations/gdp-pdf) |

## Coding Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [SWE-bench Pro](/benchmarks/swe-bench-pro) | 93% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [SWE Multilingual](/benchmarks/swe-bench-multilingual) | 96.6% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [SWE Multimodal](/benchmarks/swe-bench-multimodal) | 74.1% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [DeepSWE](/benchmarks/deepswe) | 74.3% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [FrontierSWE v2](/benchmarks/frontierswev2) | 69.9% | [Proximal: FrontierSWE v2 leaderboard](https://www.frontierswe.com/) |
| [ProgramBench](/benchmarks/programbench) | 85.6% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [FrontierCode 2.0](/benchmarks/frontiercode-2) | 49.1% | [Cognition: FrontierCode 2.0](https://cognition.com/blog/frontier-code-2.0) |
| [AA-SciCode](/benchmarks/aascicode) | 67.7% | [Artificial Analysis: scicode leaderboard](https://artificialanalysis.ai/evaluations/scicode) |
| [CursorBench 4.0](/benchmarks/cursorbench40) | 60.0% | [Cursor evals: CursorBench 4.0](https://cursor.com/cursorbench) |

## Multimodal & Grounded Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [Chartography (no tools)](/benchmarks/chartography) | 73.4% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [Chartography (tools)](/benchmarks/chartographywithtools) | 91.6% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [OfficeQA](/benchmarks/officeqa) | 83.4% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [OfficeQA Pro](/benchmarks/officeqapro) | 72.9% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [BenchCAD 2.1](/benchmarks/benchcad21) | 75.4% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [BenchCAD 2.1 (tools)](/benchmarks/benchcad21withtools) | 83.5% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |

## Reasoning Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [ARC-AGI-3](/benchmarks/arcagi3) | 65.7% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [ARC-AGI-3 Provider Adapter](/benchmarks/arc-agi-3-provider-adapter) | 94.90% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [STEM Professor Bench](/benchmarks/stemprofessorbench) | 61.8% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [AA-LCR](/benchmarks/lcr) | 83.3% | [Artificial Analysis: artificial-analysis-long-context-reasoning leaderboard](https://artificialanalysis.ai/evaluations/artificial-analysis-long-context-reasoning) |
| [CritPt](/benchmarks/critpt) | 35.4% | [Artificial Analysis: critpt leaderboard](https://artificialanalysis.ai/evaluations/critpt) |

## Knowledge Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [HLE](/benchmarks/hle) | 74.2% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [HLE w/o tools](/benchmarks/hlenotools) | 73.2% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [PhysicianBench](/benchmarks/physicianbench) | 64.4% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [HealthBench (raw, Artificial Analysis)](/benchmarks/healthbench) | 58.8% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [HealthBench (length-adjusted, Artificial Analysis)](/benchmarks/healthbenchlengthadjusted) | 59.6% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [HealthBench Professional (raw, Artificial Analysis)](/benchmarks/healthbenchprofessionalraw) | 71.1% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [HealthBench Professional (length-adjusted, Artificial Analysis)](/benchmarks/healthbenchprofessional) | 67.7% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [Artificial Analysis Intelligence Index](/benchmarks/artificialanalysis) | 64.6% | [Artificial Analysis: artificial-analysis-intelligence-index leaderboard](https://artificialanalysis.ai/evaluations/artificial-analysis-intelligence-index) |
| [AA-HLE](/benchmarks/aahle) | 74.3% | [Artificial Analysis: humanitys-last-exam leaderboard](https://artificialanalysis.ai/evaluations/humanitys-last-exam) |
| [AA-Omniscience Index](/benchmarks/aaomniscienceindex) | 66.8% | [Artificial Analysis: omniscience leaderboard](https://artificialanalysis.ai/evaluations/omniscience) |
| [AA-Omniscience Accuracy](/benchmarks/omniscienceaccuracy) | 79.1% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/claude-fable-5-2) |
| [AA-Omniscience Hallucination Rate](/benchmarks/omnisciencehallucinationrate) | 59.3% | [Artificial Analysis model benchmarks](https://artificialanalysis.ai/models/claude-fable-5-2) |

## Multilingual Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [GMMLU](/benchmarks/gmmlu) | 96.0% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |
| [MILU](/benchmarks/milu) | 94.1% | [Anthropic: Claude Fable 5.2 and Claude Mythos 5.2 system card, November 9, 2026](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf) |

## Other Anthropic Models

- [Claude Opus 5.5](/models/claude-opus-5-5) - Score: 85.82
- [Claude Sonnet 5.5](/models/claude-sonnet-5-5) - Score: 81.29
- [Claude Fable 5.1](/models/claude-fable-5-1) - Score: 80.9
- [Claude Fable 5](/models/claude-fable) - Score: 80.39
- [Claude Opus 5](/models/claude-opus-5) - Score: 79.11
- [Claude Opus 4.8](/models/claude-opus-4-8) - Score: 69.18
- [Claude Opus 4.7 (Adaptive)](/models/claude-opus-4-7-adaptive) - Score: 67.98
- [Claude Haiku 5.5](/models/claude-haiku-5-5) - Score: 66.12
- [Claude Opus 4.7](/models/claude-opus-4-7) - Score: 64.83
- [Claude Sonnet 5](/models/claude-sonnet-5) - Score: 64.27
- [Claude Opus 4.6](/models/claude-opus-4-6) - Score: 61.97
- [Claude Sonnet 4.6](/models/claude-sonnet-4-6) - Score: 55.51
- [Claude Opus 4.5 Thinking](/models/claude-opus-4-5-thinking) - Score: 53.67
- [Claude Opus 4.5](/models/claude-opus-4-5) - Score: 53.62
- [Claude Sonnet 4.5](/models/claude-sonnet-4-5) - Score: 47.22
- [Claude 4.1 Opus](/models/claude-4-1-opus) - Score: 40.2
- [Claude Haiku 4.5](/models/claude-haiku-4-5) - Score: 40.02
- [Claude 4.1 Opus Thinking](/models/claude-4-1-opus-thinking) - Score: 38.83
- [Claude 4 Sonnet](/models/claude-4-sonnet) - Score: 38.29
- [Claude 3 Opus](/models/claude-3-opus) - Score: 28.12
- [Claude 3.5 Sonnet](/models/claude-3-5-sonnet) - Score: 27.76
- [Claude 3 Haiku](/models/claude-3-haiku) - Score: 13.79
- [Claude Mythos 5](/models/claude-mythos-5) - Score: not computed
- [Claude 4 Opus Thinking](/models/claude-4-opus-thinking) - Score: not computed
- [Claude Opus 4.6 (Adaptive)](/models/claude-opus-4-6-thinking) - Score: not computed
- [Claude 4 Opus](/models/claude-4-opus) - Score: not computed
- [Claude 3.7 Sonnet Thinking](/models/claude-3-7-sonnet-thinking) - Score: not computed
- [Claude 3.7 Sonnet](/models/claude-3-7-sonnet) - Score: not computed
- [Claude 3.5 Haiku](/models/claude-3-5-haiku) - Score: not computed
- [Claude Sonnet 4.5 Thinking](/models/claude-sonnet-4-5-thinking) - Score: not computed
- [Claude Mythos 5.2](/models/claude-mythos-5-2) - Score: not computed
- [Claude Mythos 5.1](/models/claude-mythos-5-1) - Score: not computed
- [Claude Mythos Preview](/models/claude-mythos-preview) - Score: not computed
- [Claude Haiku 4.5 Thinking](/models/claude-haiku-4-5-thinking) - Score: not computed