Anthropic · Released Nov 9, 2026
Claude Fable 5.2
Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision. In prerelease testing it completed otherwise-infeasible...
- #1SciCode
- #1LMCA
- #1SimpleQA Verified
- #1ARC-AGI-1
- Released
- Nov 9 2026
- Context window
- 1M 128K out
- Input / 1M tokens
- $8.00
- Output / 1M tokens
- $40.00
Where to run it
23 providers compared
Cheapest: Google, Azure, Anthropic +18 more at $8.00 / $40.00 per 1M input / output tokens — 50% less than the priciest option.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Googleglobal | $8.00 | $40.00 | $0.20 | 1M | 128K | 100%24h | Cheapest |
| Azure | $8.00 | $40.00 | $0.20 | 1M | 128K | 100%24h | Cheapest |
| Anthropic | $8.00 | $40.00 | $0.20 | 1M | 128K | 100%24h | Cheapest |
| Amazon Bedrock | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Kilo Gateway | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Merge Gateway | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| LLM Gateway | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| OpenCode | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| NEAR AI Cloud | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Prime Inference | $8.00 | $40.00 | — | 1M | 128K | — | Cheapest |
| GitHub Copilot | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Eden AI | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Venice AI | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| DigitalOcean | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| CrossModel | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Vertex | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Vertex (Anthropic) | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| DevPass (LLM Gateway) | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Cloudflare AI Gateway | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Ofox | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| Azure Cognitive Services | $8.00 | $40.00 | $0.20 | 1M | 128K | — | Cheapest |
| NanoGPT | $10.00 | $50.00 | $0.25 | 1M | 128K | — | +25% |
| Anthropicfast | $16.00 | $80.00 | $0.40 | 1M | 128K | 100%24h | +100% |
| Vercel AI Gateway | $16.00 | $80.00 | $0.40 | 1M | 128K | — | +100% |
Value
Price vs. performance
Claude Fable 5.2 Other Anthropic Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
18 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| FrontierSWESoftware engineering · Ultra-long-horizon engineering tasks with a 20-hour budget each | 69.9% | #1of 21 | This model |
| CursorBenchSoftware engineering · Ambiguous multi-file tasks drawn from real Cursor sessions | 60.0% | #2of 20 | Gemini 4 Carbon60.4% |
| SciCodeSoftware engineering · Research-coding problems from the natural sciences | 67.7% | #1of 105 | This model |
| APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law | 80.1% | #3of 56 | Gemini 4 Carbon84.2% |
| Remote Labor IndexAgents & computer use · Real paid freelance projects done end-to-end | 41.3% | #1of 15 | This model |
| SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions | 94.0% | #1of 79 | This model |
| Furniture AssemblyDesign & visual · Spot mistakes in photos of IKEA builds | 90.0% | #1of 37 | This model |
| GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions | 93.9% | #14of 120 | Gemini 4 Carbon96.5% |
| ARC-AGI-2Reasoning & knowledge · Few-shot abstract reasoning on grid puzzles | 93.8% | #4of 76 | GPT-6 Astra95.0% |
| ARC-AGI-1Reasoning & knowledge · Pattern induction from input–output examples | 98.5% | #1of 74 | Gemini 4 Carbon98.5% |
| SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people | 94.9% | #1of 71 | This model |
| CritPtReasoning & knowledge · Open-ended, research-level physics problems | 35.7% | #2of 116 | Gemini 4 Carbon36.0% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 79.0% | #1of 82 | This model |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 70.6% | #1of 120 | This model |
| FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) | 95.1% | #1of 85 | This model |
| FrontierMath Tier 4Maths · Exceptionally hard research-level problems | 100.0% | #1of 65 | This model |
| ProofBenchMaths · Graduate maths proofs verified in Lean 4 | 100.0% | #1of 73 | This model |
| OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 | 99.7% | #13of 118 | Gemini 4 Carbon100.0% |
Specs
Details
- Model ID
anthropic/claude-fable-5.2- Developer
- Anthropic
- Release date
- Nov 9, 2026 ·
- Context window
- 1,000,000 tokens
- Max output
- 128,000 tokens
- API price
- $8.00 / $40.00 per 1M input / output tokens
- Providers
- 23
- Input types
- text, image, file
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.