Claude Fable 5
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window. It is suited for long-running, complex, and asynchronous tasks that previously required frequent human check-ins.
It is particularly strong at end-to-end work that would otherwise take a person hours, days, or weeks - taking on problems that are long-running, ambiguous, or highly multi-step. It executes well-scoped tasks with few mistakes, automatically self-correcting through verification loops, and ships with robust safeguards.
- Organization
- Anthropic
- Family
- claude-fable
- Providers
- 38
- Context
- 1,000,000
- Output limit
- 128,000
- Knowledge
- 2026-01-31
- Release
- 2026-06-09
- Updated
- 2026-06-09
- Weights
- Closed
- Input
- text, image, pdf
- Output
- text
- Capabilities
- Tools, Reasoning
Providers
Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.
| Provider | Model ID | Context | Output | Input / output · 1M | Reasoning | Tools | Structured | Details |
|---|---|---|---|---|---|---|---|---|
| 302.AI | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Abacus | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| AIHubMix | claude-fable-5 | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | Yes | View |
| Amazon Bedrock | anthropic.claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Amazon Bedrock | global.anthropic.claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Amazon Bedrock | eu.anthropic.claude-fable-5 | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | — | View |
| Amazon Bedrock | us.anthropic.claude-fable-5 | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | — | View |
| Azure | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Azure Cognitive Services | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Cloudflare AI Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| CrossModel | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| DevPass (LLM Gateway) | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Eden AI | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| FreeModel | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| GitHub Copilot | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| GitLab Duo | duo-chat-fable-5 | 1,000,000 | 128,000 | $0.00 / $0.00 | Yes | Yes | — | View |
| Impossibl | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Kenari | claude-fable-5 | 1,000,000 | 128,000 | $0.00 / $0.00 | Yes | Yes | — | View |
| Kilo Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| LLM Gateway | aws-bedrock/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | No | View |
| LLM Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| LLM Gateway | azure-anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Merge Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Modelis | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Model Oracle AI | claude-fable-5 | 1,000,000 | 128,000 | — / — | Yes | Yes | — | View |
| NanoGPT | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Neon | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Ofox | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| OpenCode Zen | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Amazon Bedrockvia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | No | View |
| Anthropicvia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Azurevia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Claude Platform on AWSvia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Googlevia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | Yes | View |
| Googlevia OpenRouter | anthropic/claude-fable-5 unknown | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Opper | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| OrcaRouter | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Pioneer | claude-fable-5 | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | — | View |
| Requesty | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Requesty | claude-fable-5@eu | 1,000,000 | 128,000 | $11.00 / $55.00 | Yes | Yes | Yes | View |
| Snowflake Cortex | claude-fable-5 | 1,000,000 | 128,000 | — / — | Yes | Yes | — | View |
| Tempr Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Venice AI | claude-fable-5 | 1,000,000 | 128,000 | $12.00 / $60.00 | Yes | Yes | Yes | View |
| Vercel AI Gateway | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Vertex | claude-fable-5@default | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Vertex (Anthropic) | claude-fable-5@default | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
| Vivgrid | claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | Yes | View |
| Xpersona | claude-fable-5 | 1,000,000 | 128,000 | $3.00 / $18.50 | Yes | Yes | — | View |
| ZenMux | anthropic/claude-fable-5 | 1,000,000 | 128,000 | $10.00 / $50.00 | Yes | Yes | — | View |
Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.
Pricing
Compare token rates and cache charges across available routes and hosting configurations.
Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.
anthropic/claude-fable-5Observed - Input
- $10.00
- Output
- $50.00
- Cache read
- $1.00
- Cache write
- $12.50
- Cache write · 1 hour
- $20.00
Additional fees and pricing conditions
- web search
- $0.01 / search
Hosting prices through OpenRouter All endpoints and cache rates
| Endpoint | Input / 1M | Output / 1M | Cache read / 1M | Cache write / 1M |
|---|---|---|---|---|
| Amazon Bedrockamazon-bedrock | $10.00 | $50.00 | $1.00 | $12.50 |
| Anthropicanthropic | $10.00 | $50.00 | $1.00 | $12.50 |
| Azureazure | $10.00 | $50.00 | $1.00 | $12.50 |
| Claude Platform on AWSclaude-on-aws | $10.00 | $50.00 | $1.00 | $12.50 |
| Googlegoogle-vertex/europe | $11.00 | $55.00 | $1.10 | $13.75 |
| Googlegoogle-vertex/global | $10.00 | $50.00 | $1.00 | $12.50 |
Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.
Performance
Review reported latency and output-throughput percentiles from the latest observed rolling window.
Time to first token · milliseconds
All latency percentiles 5 endpoints
| Endpoint | P50 | P75 | P90 | P99 |
|---|---|---|---|---|
| Amazon Bedrockamazon-bedrock | 4,271.5 ms | 6,249.25 ms | 7,447.7 ms | 8,449.22 ms |
| Anthropicanthropic | 3,033 ms | 4,604.5 ms | 5,489.3 ms | 11,282.61 ms |
| Azureazure | 4,852.5 ms | 5,152.25 ms | 5,195.9 ms | 5,222.09 ms |
| Claude Platform on AWSclaude-on-aws | 5,323 ms | 5,485 ms | 5,802.2 ms | 26,305.04 ms |
| Googlegoogle-vertex/global | 3,713.5 ms | 3,947.75 ms | 4,256 ms | 4,320.8 ms |
Output throughput · tokens per second
All throughput percentiles 5 endpoints
| Endpoint | P50 | P75 | P90 | P99 |
|---|---|---|---|---|
| Amazon Bedrockamazon-bedrock | 40 t/s | 43.25 t/s | 54.1 t/s | 56.62 t/s |
| Anthropicanthropic | 50 t/s | 67 t/s | 77 t/s | 100.26 t/s |
| Azureazure | 61 t/s | 62.5 t/s | 65.2 t/s | 66.82 t/s |
| Claude Platform on AWSclaude-on-aws | 59 t/s | 61 t/s | 63 t/s | 63.88 t/s |
| Googlegoogle-vertex/global | 52 t/s | 55.75 t/s | 57.7 t/s | 63.37 t/s |
Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.
Uptime
Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.
Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.
Benchmarks
Review attributed evaluation results on each source's original scale.
anthropic/claude-fable-5Observed | Design Arena | Category | Elo | Win rate | Rank |
|---|---|---|---|---|
| agents | agenticgamedev | 1,285 | 61.9% | 1 |
| agents | agentichtmlslides | 1,254 | 59.4% | 1 |
| agents | agenticslides(html) | 1,252 | 59.5% | 1 |
| agents | androidnative | 1,297 | 65.1% | 2 |
| agents | fullstack | 1,278 | 58.2% | 6 |
| agents | godotgamedev | 1,292 | 64.3% | 2 |
| agents | htmlslides | 1,277 | 63.1% | 1 |
| agents | mobileapps | 1,259 | 60.5% | 5 |
| agents | python-pptxslides | 1,295 | 61.4% | 3 |
| agents | webapps | 1,254 | 56.4% | 8 |
| models | 3d | 1,334 | 61.8% | 10 |
| models | asciiart | 1,338 | 68% | 2 |
| models | codecategories | 1,317 | 57.7% | 9 |
| models | dataviz | 1,314 | 57.5% | 10 |
| models | gamedev | 1,349 | 60.9% | 6 |
| models | svg | 1,301 | 62.6% | 5 |
| models | uicomponent | 1,325 | 58.1% | 10 |
| models | website | 1,302 | 56% | 12 |
Sources: Artificial Analysis and Design Arena, via OpenRouter. Scores retain their original scales and are not OpenAI Suite ratings.
Detailed evaluations
| Evaluation | Configuration | Source | Results | Details |
|---|---|---|---|---|
| models · website | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,302 Elo | Details |
| gpqa diamond | Anthropic: Claude Fable 5anthropic/claude-5-fable-20260609 | OpenRouter | 85.455% | Details |
| models · asciiart | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,338 Elo | Details |
| models · 3d | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,334 Elo | Details |
| models · svg | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,301 Elo | Details |
| tau bench verified airline | Anthropic: Claude Fable 5anthropic/claude-5-fable-20260609 | OpenRouter | 79.852% | Details |
| Composite indices | Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)anthropic/claude-5-fable-20260609 | Artificial Analysis | Intelligence 49.6 · Coding 76.5 · Agentic 50.7 | Details |
| models · dataviz | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,314 Elo | Details |
| models · uicomponent | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,325 Elo | Details |
| models · gamedev | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,349 Elo | Details |
| models · codecategories | Claude Fable 5anthropic/claude-5-fable-20260609 | Design Arena | 1,317 Elo | Details |
Sources: Artificial Analysis, Design Arena and OpenRouter. Evaluation configurations and scales differ; results are not interchangeable. Updated Oct 4, 2026.
Apps & session costs
Compare observed median session costs for applications using this model, grouped by conversation length.
| Application | Model route | Turns | Median cost / session | Details |
|---|---|---|---|---|
| Claude Code | anthropic/claude-5-fable-20260609 | 50+ turns | $26.19213 | Details |
| Claude Code | anthropic/claude-5-fable-20260609 | 1 turn | $0.289272 | Details |
| Claude Code | anthropic/claude-5-fable-20260609 | 2–9 turns | $1.048723 | Details |
| Hermes Agent | anthropic/claude-5-fable-20260609 | 2–9 turns | $0.727619 | Details |
| Hermes Agent | anthropic/claude-5-fable-20260609 | 50+ turns | $21.746696 | Details |
| Claude Code | anthropic/claude-5-fable-20260609 | 10–49 turns | $4.526512 | Details |
| Hermes Agent | anthropic/claude-5-fable-20260609 | 1 turn | $0.031873 | Details |
| Hermes Agent | anthropic/claude-5-fable-20260609 | 10–49 turns | $4.015211 | Details |
Source: OpenRouter, as of Oct 2, 2026. Published under CC BY 4.0. These are observed costs per session, not token prices or a forecast for your workload. Apps are compared separately.
Activity
Daily prompt and completion tokens reported for this model's routes in OpenRouter's top 50. Missing days have no published value.
74,639,424,419 tokens
72,566,913,940 tokens
61,327,813,042 tokens
49,137,187,933 tokens
29,236,732,795 tokens
29,940,202,593 tokens
65,208,173,131 tokens
72,066,317,052 tokens
68,420,531,887 tokens
61,276,263,341 tokens
81,911,847,092 tokens
59,942,344,424 tokens
61,665,398,752 tokens
65,622,659,648 tokens
51,105,290,617 tokens
49,942,002,003 tokens
53,270,182,202 tokens
52,630,353,781 tokens
27,857,583,289 tokens
24,980,786,606 tokens
33,561,574,342 tokens
35,467,023,275 tokens
37,210,310,013 tokens
31,620,928,592 tokens
35,280,739,315 tokens
21,846,491,561 tokens
23,607,616,203 tokens
35,265,680,406 tokens
38,851,050,476 tokens
39,691,950,478 tokens
30,738,585,057 tokens
30,513,079,917 tokens
30,467,132,649 tokens
21,309,456,046 tokens
34,621,678,351 tokens
41,321,247,641 tokens
49,352,997,385 tokens
47,151,354,478 tokens
34,536,732,806 tokens
32,553,972,618 tokens
30,345,083,508 tokens
47,550,444,993 tokens
43,052,485,662 tokens
44,738,863,867 tokens
47,031,536,787 tokens
38,767,734,248 tokens
26,615,977,244 tokens
22,522,875,114 tokens
33,415,623,224 tokens
40,123,386,315 tokens
37,977,154,913 tokens
38,942,806,078 tokens
33,553,366,144 tokens
37,104,844,949 tokens
37,242,219,097 tokens
40,748,883,212 tokens
Daily observations · 56 days
| Date (UTC) | Reported tokens | Reported routes |
|---|---|---|
| Sep 14, 2026 | 40,748,883,212 | 1 |
| Sep 1, 2026 | 37,242,219,097 | 1 |
| Aug 31, 2026 | 37,104,844,949 | 1 |
| Aug 28, 2026 | 33,553,366,144 | 1 |
| Aug 27, 2026 | 38,942,806,078 | 1 |
| Aug 26, 2026 | 37,977,154,913 | 1 |
| Aug 25, 2026 | 40,123,386,315 | 1 |
| Aug 24, 2026 | 33,415,623,224 | 1 |
| Aug 23, 2026 | 22,522,875,114 | 1 |
| Aug 22, 2026 | 26,615,977,244 | 1 |
| Aug 21, 2026 | 38,767,734,248 | 1 |
| Aug 20, 2026 | 47,031,536,787 | 1 |
| Aug 19, 2026 | 44,738,863,867 | 1 |
| Aug 18, 2026 | 43,052,485,662 | 1 |
| Aug 17, 2026 | 47,550,444,993 | 1 |
| Aug 16, 2026 | 30,345,083,508 | 1 |
| Aug 15, 2026 | 32,553,972,618 | 1 |
| Aug 14, 2026 | 34,536,732,806 | 1 |
| Aug 13, 2026 | 47,151,354,478 | 1 |
| Aug 12, 2026 | 49,352,997,385 | 1 |
| Aug 11, 2026 | 41,321,247,641 | 1 |
| Aug 10, 2026 | 34,621,678,351 | 1 |
| Aug 9, 2026 | 21,309,456,046 | 1 |
| Aug 8, 2026 | 30,467,132,649 | 1 |
| Aug 7, 2026 | 30,513,079,917 | 1 |
| Aug 6, 2026 | 30,738,585,057 | 1 |
| Aug 5, 2026 | 39,691,950,478 | 1 |
| Aug 4, 2026 | 38,851,050,476 | 1 |
| Aug 3, 2026 | 35,265,680,406 | 1 |
| Aug 2, 2026 | 23,607,616,203 | 1 |
| Aug 1, 2026 | 21,846,491,561 | 1 |
| Jul 31, 2026 | 35,280,739,315 | 1 |
| Jul 30, 2026 | 31,620,928,592 | 1 |
| Jul 29, 2026 | 37,210,310,013 | 1 |
| Jul 28, 2026 | 35,467,023,275 | 1 |
| Jul 27, 2026 | 33,561,574,342 | 1 |
| Jul 26, 2026 | 24,980,786,606 | 1 |
| Jul 25, 2026 | 27,857,583,289 | 1 |
| Jul 24, 2026 | 52,630,353,781 | 1 |
| Jul 23, 2026 | 53,270,182,202 | 1 |
| Jul 22, 2026 | 49,942,002,003 | 1 |
| Jul 21, 2026 | 51,105,290,617 | 1 |
| Jul 20, 2026 | 65,622,659,648 | 1 |
| Jul 19, 2026 | 61,665,398,752 | 1 |
| Jul 18, 2026 | 59,942,344,424 | 1 |
| Jul 17, 2026 | 81,911,847,092 | 1 |
| Jul 16, 2026 | 61,276,263,341 | 1 |
| Jul 15, 2026 | 68,420,531,887 | 1 |
| Jul 14, 2026 | 72,066,317,052 | 1 |
| Jul 13, 2026 | 65,208,173,131 | 1 |
| Jul 12, 2026 | 29,940,202,593 | 1 |
| Jul 11, 2026 | 29,236,732,795 | 1 |
| Jul 10, 2026 | 49,137,187,933 | 1 |
| Jul 9, 2026 | 61,327,813,042 | 1 |
| Jul 8, 2026 | 72,566,913,940 | 1 |
| Jul 7, 2026 | 74,639,424,419 | 1 |
Source: OpenRouter (openrouter.ai/rankings), as of Oct 4, 2026. CC BY 4.0. Totals include only individually published routes. Tokenizers differ by provider; the aggregated “other” category is never assigned to a model.
Technical details & API
Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.
anthropic/claude-fable-5Observed - Context
- 1,000,000
- Maximum output
- 128,000
- Tokenizer
- Claude
- Input
- text, image, file
- Output
- text
- Moderation
- Yes
- Added to OpenRouter
- 2026-06-09
https://openrouter.ai/api/v1anthropic/claude-fable-5anthropic/claude-5-fable-20260609Reasoning
- Required
- Yes
- Enabled by default
- Not reported
- Default effort
- high
- Supported efforts
- max, xhigh, high, medium, low
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity
Frequently asked questions
Answers based on the model metadata and serving offers currently in the catalog.
How much does Claude Fable 5 cost?
Listed rates start at $0.00 per million input tokens and $0.00 per million output tokens. Prices vary by provider and configuration; see Pricing for details.
Which providers offer Claude Fable 5?
There are 49 cataloged offers across 38 providers. Compare model IDs, prices and limits in Providers.
What is the context window?
The cataloged model context is 1,000,000 tokens. Each serving endpoint may apply a different limit.
Does it support tools and structured output?
Tool calling: Yes. Structured output: Not reported. Support can vary by endpoint.
Catalog history · 2 recorded revisions
Metadata observations since this model was first cataloged. These are not model release versions.
- ·
b4368b89eb97 - ·
7949123b2808