Anthropic: Claude Fable 5.2

anthropic/claude-fable-5.2

Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision. In prerelease testing it completed otherwise-infeasible...

Context window
1,000,000 tokens
Input
text · image · file
Output
text
Relay support
Text & vision

Reference prices & points

Our global markup: 15% · 1 USD = 10,000 points · Price version 0

Billing unitOpenRouter / USDOur reference / USDPoints
Input / 1M tokens$8$9.292,000
Output / 1M tokens$40$46460,000
Per search$0.01$0.0115115
Cache read / 1M tokens$0.2$0.232,300
Cache write / 1M tokens$10$11.5115,000
1h cache write / 1M tokens$16$18.4184,000

Actual charge = the OpenRouter request cost × the markup locked for that request. Catalogue rates may be routing references; caching, long context, images and audio are charged when used. Listed prices do not mean every capability is available through this relay.

Catalogue time: 2026-11-11T23:55:39.885Z · Live catalogue

View all upstream price fields
{
  "prompt": "0.000008",
  "completion": "0.00004",
  "web_search": "0.01",
  "input_cache_read": "0.0000002",
  "input_cache_write": "0.00001",
  "input_cache_write_1h": "0.000016"
}

Integration & availability

Use /v1/chat/completions for non-streaming, multi-turn conversations. Models marked for vision accept images; documents can be extracted to text in the workspace. Create a site API key and ensure you have enough points and the service is enabled. Provider availability, context and budget limits apply.

Read the API guide → · Back to model directory