# Claude 3.7 Sonnet

> The first Claude that would show you its reasoning if you asked and skip it if you did not, on one model and one endpoint rather than two. It shipped alongside a command-line agent that carried its name, and within a year the agent was better known than the model that came with it.

2025-02-24 — 2026-02-19 · lived 11 months

Buried here: `claude-3-7-sonnet-20250219`

## Last words

Asked to fix one failing test, it would often fix the three next to it as well.

## The record

- Provider: Anthropic
- Model id: `claude-3-7-sonnet-20250219`
- Cause of death: Superseded
- Notice given: 2025-10-28
- Context window: 200,000 tokens
- Cost per Mtok: $3 in · $15 out
- Succeeded by: [Claude Sonnet 4](https://models.rip/claude-sonnet-4/epitaph) (this archive's reading of lineage, not the provider's migration guidance)

## Sources

- https://platform.claude.com/docs/en/about-claude/model-deprecations
- https://www.anthropic.com/news/claude-3-7-sonnet

## Elsewhere

- [Stand at this grave](https://models.rip/claude-3-7-sonnet)
- [The Anthropic plot](https://models.rip/anthropic)
- [The whole cemetery](https://models.rip/)