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Anthropic: Claude Fable 5.1

AnthropicNewModerated
anthropic/claude-fable-5.1

About this model

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...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "anthropic/claude-fable-5.1",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

38.710 TND

per 1M tokens

Output tokens

193.548 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 135.484 TND.

Specifications

Provider
Anthropic
Context window
1,000,000 tokens
Input modality
Text, Image
Added
Sep 1, 2026
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputs