Anthropic/claude-sonnet-4-6/Released Feb 2026

Claude Sonnet 4.6

Balanced coding and agents, 1M context

Commercial use
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About Claude Sonnet 4.6

Claude Sonnet 4.6 is a Multimodal LLM designed for coding, agent workflows, and knowledge work. It balances speed and intelligence while improving reliability for complex, multi-step tasks.

Some other noteworthy features of Claude Sonnet 4.6 include adaptive thinking, extended thinking support, and a native 1M-token context window for long-context reasoning workloads.

MetricValue
Context Length1,000,000 tokens
MultilingualYes

Ready to build with Claude Sonnet 4.6?

Try Claude Sonnet 4.6 in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.

curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    -d '{
  "model": "claude-sonnet-4-6",
  "messages": [
    {
      "role": "user",
      "content": "Try sending a message."
    }
  ]
}'

API endpoint

See the API reference for request and response formats.

POSThttps://hub.oxen.ai/api/ai/chat/completions