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Claude Sonnet (latest)

Tools
anthropic/claude-sonnet-latest

Vision · 1M context · Sep 2026 · 35 upstreams

Always resolves to the newest live Claude Sonnet model — currently Claude Sonnet 5.5 (anthropic/claude-sonnet-5-5). Anthropic's Claude Sonnet 5.5 is the successor to Claude Sonnet 5 — the best combination of speed and intelligence in the lineup. It is the direct upgrade for well-scoped everyday work (building features, fixing bugs, drafting and review) at the same $2 / $10 per million input / output rates, with adaptive thinking on by default at `high` effort, 1M-token context, 128K max output, vision input, and tool use. Faster than Opus 5.5, cheaper, same window.

Needs your own keyTo use Claude Sonnet (latest), add your Anthropic key, or a key from another provider that serves it. AnyRouter adds no fee.
Family aliasanthropic/claude-sonnet-latest

Always resolves to the newest live model in this family. Pin a concrete id when you need stable behavior.

Currently resolves toClaude Sonnet 5.5anthropic/claude-sonnet-5-5

Family members, fallback order

  1. 1.Claude Sonnet 5.5current
  2. 2.Claude Sonnet 5
  3. 3.Claude Sonnet 4.6
  4. 4.Claude Sonnet 4.5
  5. 5.Claude Sonnet 4
context
1M
input / 1M (list)
$2.00
output / 1M (list)
$10.00
routes
35
speed, 24h
No data yet

Upstreams

35
  1. 1AnthropicYour keynot addedBilled to your key
  2. 2Amazon BedrockYour keynot addedBilled to your key
  3. 3Google Vertex AIYour keynot addedBilled to your key
  4. 4Microsoft AzureYour keynot addedBilled to your key
  5. 5OpenRouterYour keynot addedBilled to your key
  6. 6ClineYour keynot addedBilled to your key
  7. 7Ramp RouterYour keynot addedBilled to your key
  8. 8Vercel AI GatewayYour keynot addedBilled to your key
  9. 9DeepInfraYour keynot addedBilled to your key
  10. 10Venice AIYour keynot addedBilled to your key
  11. 11Nous ResearchYour keynot addedBilled to your key
  12. 12OneTokenYour keynot addedBilled to your key
  13. 13RespanYour keynot addedBilled to your key
  14. 14BeatAPIYour keynot addedBilled to your key
  15. 15Token HarborYour keynot addedBilled to your key
  16. 16ZenMuxYour keynot addedBilled to your key
  17. 17LLM GatewayYour keynot addedBilled to your key
  18. 18RequestyYour keynot addedBilled to your key
  19. 19AI/ML APIYour keynot addedBilled to your key
  20. 20GetVibeYour keynot addedBilled to your key
  21. 21AIHubMixYour keynot addedBilled to your key
  22. 22InfronYour keynot addedBilled to your key
  23. 23OcarRouterYour keynot addedBilled to your key
  24. 24OpenGatewayYour keynot addedBilled to your key
  25. 25Itera ComputeYour keynot addedBilled to your key
  26. 26OpenCode ZenYour keynot addedBilled to your key
  27. 27NanoGPTYour keynot addedBilled to your key
  28. 28Eden AIYour keynot addedBilled to your key
  29. 29Abacus RouteLLMYour keynot addedBilled to your key
  30. 30FluenceYour keynot addedBilled to your key
  31. 31CortecsYour keynot addedBilled to your key
  32. 32PoeYour keynot addedBilled to your key
  33. 33Jiekou.AIYour keynot addedBilled to your key
  34. 34KenariYour keynot addedBilled to your key
  35. 35NEAR AI CloudYour keynot addedBilled to your key

Quick start

/api/v1/chat/completions
cURL
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "anthropic/claude-sonnet-latest",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'

Details

Owner
Anthropic
Kind
Vision
Released
Sep 2026
Context
1M
Data policy
Provider retention
Endpoint
/api/v1/chat/completions