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Anthropic

Claude Fable 5.2

The next Fable release, on the same premium tier.

Claude on AnyModel runs through the official Anthropic API and through AWS. The model weights are the same as in claude.ai. Answers can differ because the Claude app adds its own system prompt, tools and extended thinking to every request. Through the API the model receives only your request. More in the FAQ

Claude Fable 5.2 is the latest Fable id our relay capacity serves — the same Mythos-class tier above Opus as Fable 5.1, at the same rate. Listed the day it answered live (2026-11-11).

Best for

Hardest problemsAgentsHigh-stakes output

Strengths

  • ▸Above-Opus capability
  • ▸Latest Fable id
  • ▸1M-token context

Use Claude Fable 5.2 via AnyModel

One OpenAI-compatible endpoint — just set the model id:

curl https://anymodel.org/v1/chat/completions \
  -H "Authorization: Bearer $ANYMODEL_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-fable-5-2",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
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