News · Claude
Claude Developers: Sonnet migration guidance covers pricing and control over upfront thinking
Posted on X by Claude Developers (@ClaudeDevs) on 28 September 2026. The headline is our summary; the post itself is quoted below.
Claude Developers@ClaudeDevs ·
Price is the same as Sonnet 5: $2/$10 per million tokens with cache reads at $0.20. Thinking is always on but you can use `between_tools`…
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Context
- Claude Code 2.1.284Released the same day (UTC). Added Claude Sonnet 5.5 (claude-sonnet-5-5), now the default Sonnet model on the Anthropic API — 1M context, $2/$10 per Mtok with $0.20/Mtok cache reads…
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