Claude Fable Models by Anthropic
2 models2026Up to 1m ctxFrom $10/1M input
Last refreshed 2026-09-01. Next refresh: weekly.
Details
ResearcherAnthropic
LicenseProprietary
Commercial useCommercial use: conditional
Models2
Released2026
Max context1m
Capabilities
VisionAll models
MultimodalAll models
ReasoningAll models
JSON / Tool useAll models
Structured OutputsAll models
Links
WebsiteAbout
Anthropic's broadly released Mythos-class model family. Claude Fable 5, released June 9, 2026, is the generally available public model in this line, positioned above the Claude 4.x Opus tier for demanding reasoning and long-horizon agentic work.
Decision facts
- Best fit
- agentcodingvision and multimodal work
- Capability starting point
- Claude Fable 5.1 with 1m context and reasoning, JSON / Tool use, structured outputs, and multimodal inputs
- Lowest tracked input
- Claude Fable 5 · $10/1M · Anthropic
- Closest related family
- Computer Use
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
2 in view
Claude Fable 5.1Current
Use when the workload needs 1m context, reasoning, and JSON / Tool use.
2026-091m contextreasoningJSON / Tool use
Claude Fable 5Current
Use when the workload needs 1m context, reasoning, and JSON / Tool use.
2026-061m contextreasoningJSON / Tool use
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Claude Fable 5.1 | Use when the workload needs 1m context, reasoning, and JSON / Tool use. | 2026-09 | 1m contextreasoningJSON / Tool use | Current |
| Claude Fable 5 | Use when the workload needs 1m context, reasoning, and JSON / Tool use. | 2026-06 | 1m contextreasoningJSON / Tool use | Current |
Release Timeline
2 release groups2026-09
1 current
Claude Fable 5.1
Current1m contextreasoningJSON / Tool use
2026-06
1 current
Claude Fable 5
Current1m contextreasoningJSON / Tool use
Specifications(2 models)
| Model | Released | Context | Vision | Multimodal | Reasoning | JSON / Tool use | Structured Outputs |
|---|---|---|---|---|---|---|---|
| Claude Fable 5.1 | 2026-09 | 1m | Yes | Yes | Yes | Yes | Yes |
| Claude Fable 5 | 2026-06 | 1m | Yes | Yes | Yes | Yes | Yes |
Available From(8 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Claude Fable 5 | Anthropic | $10 | $50 | Serverless |
| Claude Fable 5 | AWS Bedrock | $10 | $50 | Serverless |
| Claude Fable 5 | GCP Vertex AI | $10 | $50 | Serverless |
| Claude Fable 5 | Microsoft Foundry | $10 | $50 | Serverless |
| Claude Fable 5 | OpenRouter | $10 | $50 | Serverless |
| Claude Fable 5 | Vercel AI Gateway | $10 | $50 | Serverless |
| Claude Fable 5 | Replicate API | $10 | $50 | Serverless |
| Claude Fable 5.1 | Anthropic | $10 | $50 | Serverless |
| Claude Fable 5.1 | AWS Bedrock | $10 | $50 | Serverless |
| Claude Fable 5.1 | GCP Vertex AI | $10 | $50 | Serverless |
| Claude Fable 5.1 | Microsoft Foundry | $10 | $50 | Serverless |
Comparisons
- Claude Fable 5 vs Gemini 3.1 Pro Preview
- Claude Fable 5 vs DeepSeek V4 Pro
- Claude Fable 5 vs Grok 4
- Claude Fable 5 vs MAI-Thinking-1
- Claude Opus 5 vs Claude Fable 5
- Claude Fable 5 vs Claude Opus 4.8
- Claude Fable 5 vs Claude Sonnet 4.6
- Claude Sonnet 5 vs Claude Fable 5
