Claude Fable Models by Anthropic
Anthropic releases · 15 in the last 12 months · this family litChangelog →
2 models2026Up to 1M ctxFrom $10.00/1M input
Last refreshed 2026-10-17. Next refresh: weekly.
Details
ResearcherAnthropic
LicenseProprietary
Commercial useRestricted
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
- codingvision and multimodal workreasoning
- 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 · $10.00/1M · 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.
1 in view1 retired
Claude Fable 5.1Current
Use when the workload needs 1M context, reasoning, and JSON / Tool use.
2026-091M 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 |
Release Timeline
2 release groups2026-09
1 current
Claude Fable 5.1
Current1M contextreasoningJSON / Tool use
2026-06
1 retired
Claude Fable 5
Replaced1M contextreasoningJSON / Tool use
Replaced By
Replaced
Keep for legacy integrations; evaluate Claude Fable 5.1 before new work.
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 |
Available From(8 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Claude Fable 5.1 | Anthropic | $10 | $50 | Serverless |
| Claude Fable 5.1 | GCP Vertex AI | $10 | $50 | Serverless |
| Claude Fable 5.1 | Microsoft Foundry | $10 | $50 | Serverless |
| Claude Fable 5.1 | OpenRouter | $10 | $50 | Serverless |
| Claude Fable 5.1 | AWS Bedrock | $11 | $55 | 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
