New Features - Claude Code Blog

Sonnet 5 landed June 30 with near-Opus coding ability, a 1M-token context window, and $2/$10 launch pricing through August. Here's what actually changed, the tokenizer fine print that affects your bill, and which model to run when.

Fable 5 is the first Claude model to sit above Opus — a new tier, a new name, and double the price. Here's what it is, when it's worth it, what changes in the API, and how to use it well in Claude Code.

Claude Opus 4.8 pushes the autonomous horizon from an hour to a workday, tightens subagent coordination, and ships meaningful gains on cost-per-task. Here's what's actually different, what to do with it, and where it still falls short.

Claude Opus 4.7 is here, building on the 1M token context window with sharper reasoning, better tool orchestration, and tighter agentic workflows. Here's what's new, what's genuinely better, and how to put it to work.

Claude Opus 4.6 brings a 1 million token context window, multi-platform Claude Code availability, fast mode, and background agents. Here's what these changes mean for how you build software with AI in 2026.