Claude Fable 5.1
anthropic/claude-fable-5-1Claude Fable 5.1 is a reasoning model by Anthropic with vision, function calling, web search, prompt caching, structured output — designed for complex, multi-step problem solving where accuracy matters more than speed. It supports a 1M token context window with up to 128K tokens of output. Priced at $10 per million input tokens and $50 per million output tokens. Access Claude Fable 5.1 through Inworld LLM Inference with OpenAI SDK compatibility, built-in failover, and intelligent routing across providers.
- Input
- $10.00
- Output
- $50.00
- Cache read
- $0.25
- Context
- 1M
- Max output
- 128K
curl --fail-with-body https://api.inworld.ai/v1/chat/completions \
-H "Authorization: Basic $INWORLD_API_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "anthropic/claude-fable-5-1",
"messages": [{"role": "user", "content": "Hello"}],
"stream": true
}'Pricing and providers
Access Claude Fable 5.1 through Inworld LLM Inference or speech to speech via Anthropic. By using the providers below you agree to their terms, listed under each provider's name in the Legal section.
| Modalities | |||||||
|---|---|---|---|---|---|---|---|
AnthropicThis pageanthropic/claude-fable-5-1 | $10.00 | $50.00 | $0.25 | $12.50 | 1M | 128K | TextImageFile→Text |
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