Claude Fable 5.1
anthropic/claude-fable-5-1Claude model for demanding reasoning and long-horizon agentic work
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Context
1M
1,000,000 tokens
Max output
128K
128,000 tokens
Input
$10.00
per 1M tokens
Output
$50.00
per 1M tokens
Providers
37
43 listings
Intelligence
53.4
Intelligence Index
Pricing
USD per 1M tokens · listed by Anthropic
| Token type | Standard |
|---|---|
| Input | $10.00 |
| Output | $50.00 |
| Cache read | $0.25 |
| Cache write | $12.50 |
Lowest input price across providers: Free.
Capabilities
ReasoningYes
Effort: low, medium, high, xhigh, max
Tool callYes
Structured outputYes
TemperatureNo
AttachmentsYes
Interleaved reasoningYes
Field: reasoning_details
Open weightsNo
ModeratedYes
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence53.4#4 of 208
- Coding81.6#1 of 112
- Agentic57.9#1 of 86
- Arena1,338#4 of 128
| Design Arena category | Elo | Win rate | Arena rank |
|---|---|---|---|
| Spreadsheet | 1,414 | 70.4% | #1 |
| HTML slides | 1,394 | 56.5% | #1 |
| 3D | 1,390 | 67.7% | #7 |
| Game dev | 1,381 | 65.6% | #6 |
| Data viz | 1,344 | 61.8% | #5 |
| Code | 1,335 | 59.3% | #8 |
| UI component | 1,333 | 59.6% | #11 |
| Godot game dev | 1,327 | 60.7% | #1 |
| Full stack | 1,326 | 57.2% | #1 |
| ASCII art | 1,321 | 65.0% | #3 |
| Slides (python-pptx) | 1,318 | 60.8% | #1 |
| Web apps | 1,318 | 56.1% | #2 |
| Website | 1,312 | 56.3% | #9 |
| SVG | 1,296 | 56.4% | #8 |
| Mobile apps | 1,265 | 56.3% | #5 |
Rankings
Position on each OneAtlas leaderboard
Providers · 37
43 listings
Anthropic
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)
Merge Gateway
Amazon BedrockRequesty
AI/ML API
AIHubMix
Ofox
302.AI
OpenCode
Venice AI
ZenMux
Azure
Azure Cognitive Services
Tempr Gateway
DigitalOcean
Cloudflare AI Gateway
CommandCode
Prime Inference
CrossModel
Vertex
Neon
NEAR AI Cloud
Opper
Perplexity Agent
Standard Compute
Vivgrid
GitHub Copilot
GitLab Duo
Boundless
Vertex (Anthropic)
Aixy| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| AI/ML API | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| AIHubMix | claude-fable-5-1 | 1M | — | 128K | $11.00 | $55.00 | — | $0.28 | $13.75 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Aixy | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Amazon Bedrock | anthropic.claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Amazon Bedrock | us.anthropic.claude-fable-5-1 | 1M | — | 128K | $11.00 | $55.00 | — | $0.28 | $13.75 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Amazon Bedrock | global.anthropic.claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Anthropic | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Azure | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Azure Cognitive Services | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Boundless | claude-fable-5.1 | 262K | — | 128K | $10.00 | $50.00 | — | $0.25 | — | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Cloudflare AI Gateway | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| CommandCode | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| CrossModel | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| DevPass (LLM Gateway) | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| DigitalOcean | anthropic-claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Eden AI | anthropic/claude-fable-latest | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Eden AI | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| GitHub Copilot | claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| GitLab Duo | duo-chat-fable-5-1 | 1M | — | 128K | Free | Free | — | Free | Free | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Kilo Gateway | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| LLM Gateway | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| LLM Gateway | azure-anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| LLM Gateway | aws-bedrock/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | No | No | Sep 1, 2026 |
| Merge Gateway | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| NanoGPT | anthropic/claude-fable-5.1 | 1M | 1M | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| NEAR AI Cloud | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | — | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Neon | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | No | No | Sep 1, 2026 |
| Ofox | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| OpenCode | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Opper | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Perplexity Agent | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Prime Inference | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | — | — | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Requesty | claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Requesty | claude-fable-5.1@eu | 1M | — | 128K | $11.00 | $55.00 | — | $0.28 | $13.75 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Standard Compute | anthropic/claude-fable-5.1 | 1M | 850K | 50K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Tempr Gateway | anthropic/claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Venice AI | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Vercel AI Gateway | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |
| Vertex | claude-fable-5-1@default | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Vertex (Anthropic) | claude-fable-5-1@default | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| Vivgrid | claude-fable-5-1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.50 | $12.50 | — | — | Yes | Yes | Yes | No | Sep 1, 2026 |
| ZenMux | anthropic/claude-fable-5.1 | 1M | — | 128K | $10.00 | $50.00 | — | $0.25 | $12.50 | — | — | Yes | Yes | Unknown | No | Sep 1, 2026 |