Anthropic
Claude Fable 5.1
Released 2026-09-01
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...
You send / 1M
$10.00
tokens in
It replies / 1M
$50.00
tokens out
Memory
1M
tokens it can read at once
Typical request
$0.038
1,000 words in, 400 out
Data privacy
No training or retention: Providers don't train on your prompts, but may keep them for a time.
Based on OpenRouter and Vercel AI Gateway data. Confirm terms with the provider before sending sensitive data.
What it can do
- Reads: text, image, file
- Writes: text
- Reasoning: Yes
- Tool calling: Yes
- Longest reply: 128K tokens
- Repeated text is billed at $0.250 per 1M (prompt caching)
- Intelligence score: 53.4 / 100 (Artificial Analysis)
Similar models
- GPT Astra Latest~openai · $10.00 in / $50.00 out per 1M
- GPT-6 AstraOpenAI · $10.00 in / $50.00 out per 1M
- GPT-6 Astra ProOpenAI · $10.00 in / $50.00 out per 1M
- Claude Fable Latest~anthropic · $10.00 in / $50.00 out per 1M
- Claude Fable 5Anthropic · $10.00 in / $50.00 out per 1M
- o1OpenAI · $15.00 in / $60.00 out per 1M
Appears in
Top No-Training AI ModelsTop No-Training Vision AI ModelsTop No-Training Vision Reasoning AI ModelsTop No-Training Vision Tool-Calling AI ModelsTop No-Training Vision Long-Context AI ModelsTop No-Training Reasoning AI ModelsTop No-Training Reasoning Tool-Calling AI ModelsTop No-Training Reasoning Long-Context AI Models