Anthropic ships new capabilities on API, Claude Code to follow in days

Anthropic staffer trq212 confirmed that capabilities released with the new model are live on the API, with Claude Code support expected within a day or two, including a fix so effort levels no longer break prompt caching.

2026-09-03 ~ 2026-09-03 · 2 related posts

• Anthropic staffer: new model feature live on API, coming to Claude Code within a day — trq212 · 2026-09-03
• Anthropic: effort levels no longer breaking prompt cache live on API, Claude Code soon — trq212 · 2026-09-03