Anthropic
Claude Fable 5.1 Pricing, Specs & Alternatives
Cache hits cost $0.25, 2.5 percent of input. Released Sep 1, 2026.
Latest changes
All changesGet an email when Claude Fable 5.1 changes its price or plans
Questions
How much does Claude Fable 5.1 cost
Claude Fable 5.1 lists $10 per 1M input tokens and $50 per 1M output tokens, checked Nov 9, 2026 on docs.anthropic.com.
When was Claude Fable 5.1 released
Sep 1, 2026, per platform.claude.com.
What is the Claude Fable 5.1 context window
1M tokens, per platform.claude.com, read Nov 9, 2026.
Who makes Claude Fable 5.1
Anthropic.
What are alternatives to Claude Fable 5.1
Claude Fable 5.2, Claude Fable 5, Claude Mythos 5.1, Claude Mythos 5.2, Claude Mythos 5.
Head to head
All comparisons- Claude Fable 5.1 vs GPT-5.6 Sol: Claude Fable 5.1 $10 / $50 vs GPT-5.6 Sol $4 / $20 per 1M tokens in / out.
- Claude Fable 5.1 vs Claude Fable 5.2: Claude Fable 5.1 $10 / $50 vs Claude Fable 5.2 $8 / $40 per 1M tokens in / out.
- Claude Fable 5.1 vs GPT-6 Astra: Claude Fable 5.1 $10 / $50 vs GPT-6 Astra $10 / $50 per 1M tokens in / out.