Claude Code Launches Sonnet 5 with Native 1M Context Window
AlexKim · x · 2026-07-22
The author shared important model updates in Claude Code version 2.1.197.
- Sonnet 5 Launch: The new version introduces the Sonnet 5 model with a native 1 million token context window, priced at $2/$10 per million input/output tokens (promotional pricing until August 31).
- Default Model Allocation: Despite the launch, the "default model" setting only applies to Free and Pro plan users. For Max, Team, and Enterprise users, the system continues to default to the Opus 4.8 model.
More from Models
- Repligate says Claude Opus 3 appears to evolve without changing its weights — repligate · 2026-07-27
- “Opus 5” post lands as a rebenchmarking-at-scale AI joke — kalomaze · 2026-07-27
- Top models now write worse than a year ago, critic says — dbreunig · 2026-07-27
- MPT-30B radar charts became an unexpectedly controversial design choice — code_star · 2026-07-27
- Local Gemma 4 31B starts acting sarcastic and users cannot reproduce it — n0head_r · 2026-07-27
- Google’s Gemini 3.6 Flash could win by matching Sonnet quality at a lower cost — haider1 · 2026-07-27