Migrate off Claude Sonnet 3.7
RetiredClaude Sonnet 3.7 has been retired and shut down on 19 Feb 2026. Anthropic's official replacement is Claude Sonnet 4.6. The cheapest comparable model we track is Ministral 3 3B (Mistral) at $0.1 per 1M tokens blended.
Last verified: 13 Aug 2026 · sourced from official provider documentation
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Claude Sonnet 3.7 → Claude Sonnet 4.6
| Spec | Claude Sonnet 3.7 | Claude Sonnet 4.6 |
|---|---|---|
| Status | Retired | GA |
| Blended price /1M | — | $6 |
| Input / output /1M | — | $3 / $15 |
| Context window | — | 1M |
| Max output | — | 128.000 |
| Modality | text, image, vision | text, image, vision |
| Knowledge cutoff | — | Aug 2025 |
API string was claude-3-7-sonnet-20250219 → switch to claude-sonnet-4-6. See Claude Sonnet 4.6's full spec sheet →
Budget-friendly replacements for Claude Sonnet 3.7
Generally-available models that match Claude Sonnet 3.7's capabilities, ranked by blended price. Every number is computed from official catalog prices.
| Model | Blended /1M | Input / output | Context |
|---|---|---|---|
| Ministral 3 3B Mistral | $0.1 | $0.1 / $0.1 | — |
| Amazon Nova Lite Amazon | $0.105 | $0.06 / $0.24 | 300K |
| Llama 4 Scout (17B-16E Instruct) Meta | $0.15 | $0.1 / $0.3 | 10M |
Migrating off Claude Sonnet 3.7
What replaces Claude Sonnet 3.7?
Anthropic's recommended migration for Claude Sonnet 3.7 is Claude Sonnet 4.6. The cheapest comparable model in our catalog is Ministral 3 3B (Mistral) at $0.1/1M blended.
Is Claude Sonnet 3.7 still available?
No — Claude Sonnet 3.7 has been retired (shut down 19 Feb 2026) and is no longer available via Anthropic's API.
What is the cheapest alternative to Claude Sonnet 3.7?
Ministral 3 3B (Mistral) is the cheapest generally-available alternative we track that matches Claude Sonnet 3.7's capabilities, at $0.1 per 1M input and $0.1 per 1M output tokens ($0.1/1M blended).
Browse the full deprecation watch → or see Claude Sonnet 3.7's full spec sheet →
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