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Anthropic

Claude Sonnet 5

The new mid-tier Claude 5 — intro-priced by the vendor until September.

Claude Sonnet 5 is the first mid-tier model of the Claude 5 family: stronger than Sonnet 4.6 with the same 1M-token window. Anthropic lists it at an intro $2/$10 per 1M until 2026-09-01 (then $3/$15).

Best for

Coding agentsProduction appsAgents

Strengths

  • ▸Claude 5 generation
  • ▸Great price/quality
  • ▸1M-token context

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