GitHub Adds Claude Sonnet 5.5 to Copilot, Cutting Coding Costs by 30%

Anthropic's new mid-tier model lands in Copilot's picker, promising the same coding quality as Sonnet 5 with fewer tool calls and lower per-task cost.

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2026-09-28 18:19 · AlphaSignal
GitHub Adds Claude Sonnet 5.5 to Copilot, Cutting Coding Costs by 30%

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