Claude Sonnet 4
claude-sonnet-4
Last refreshed 2026-05-15. Next refresh: weekly.
Claude Sonnet 4 is a legacy integration reference; evaluate Claude Sonnet 4.6 before starting new work.
Decision context: Vision task fit, 3 tracked provider routes, and research from 2026-05-15.
Use it for
- Teams maintaining an existing integration
- Workloads that can use a 1M context window
- Buyers comparing 3 tracked provider routes
Do not use it for
- New production launches
- Vision or document-understanding workloads
Cheapest output
$15.00
Anthropic per 1M tokens
Provider routes
3
Tracked API hosts
Quality / dollar
Unknown
No output-token price in the ladder
Freshness
2026-05-15
Researched 3d ago
This API model is marked deprecated. Use Claude Sonnet 4.6 as the replacement candidate before sending new production traffic.
Top use-case fit
RAG
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Vision
1 relevant benchmark in the decision map.
Provider price ladder
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Anthropic | $3.00 | $15.00 | Serverless |
| OpenRouter | $3.00 | $15.00 | Serverless |
| AWS Bedrock | $8.00 | $40.00 | Serverless |
Benchmark peer barsfor Vision
Migration checks
No linked migration route is available for this model yet.
About
Claude Sonnet 4 API snapshot with expanded 1M-token context. Anthropic lists claude-sonnet-4-20250514 as deprecated April 14, 2026 with Claude API retirement scheduled for June 15, 2026; use Claude Sonnet 4.6 for current integrations.
Claude Sonnet 4 has a 1M-token context window.
Claude Sonnet 4 input tokens at $3/1M, output at $15/1M.
Capabilities
Benchmark Scores(1)
| Benchmark | Score | Version | Source |
|---|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 74.4 | — | https://mmmu-benchmark.github.io/ |
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