# Claude Code 2.1.197: Claude Sonnet 5 becomes the default model

> Claude Sonnet 5 ships as the default model in Claude Code, with a 1M-token native context window and promotional pricing of $2/$10 per million input/output tokens through August 31. Anyone on an older CLI build must update to 2.1.197 to get access.

| | |
|---|---|
| **Tool** | Claude Code |
| **Version** | 2.1.197 |
| **Kind** | release |
| **Published** | 2026-06-30 |
| **Observed** | 2026-08-11 |
| **Significance** | 5/5 |
| **Breaking** | no |
| **Categories** | new-model, model-support, pricing, context-window |

## What changed


- Claude Sonnet 5 is now the default model in Claude Code
- Native 1M-token context window
- Promotional pricing: $2 / $10 per Mtok, through August 31
- Requires CLI 2.1.197 or later
- Announcement: https://www.anthropic.com/news/claude-sonnet-5


## Sources

- [changelog_md](https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md) — retrieved 2026-08-11

## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

---
Canonical: https://changelogs.info/claude-code/2-1-197
Entity: https://changelogs.info/claude-code
Event ID: `evt_2026-06-30_claude-code_2-1-197`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.