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Claude Sonnet 5.5

The newest mid-tier Claude — Sonnet 5 generation, priced to move.

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 Sonnet 5.5 is the newest mid-tier model of the Claude 5 family: a step up from Sonnet 5 with the same 1M-token window, strong on coding agents and production workloads. On AnyModel it's metered at the Sonnet 4.6 rate — cheaper than Sonnet 5.

Best for

Coding agentsProduction appsAgents

Strengths

  • ▸Newest Sonnet
  • ▸Great price/quality
  • ▸1M-token context

Use Claude Sonnet 5.5 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-sonnet-5-5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'