#ClaudeSonnet Articles

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Claude News 09/28/2026 Read AI Rating: High

Anthropic Launches Claude Sonnet 5.5, 30% Faster and Up to 30% Cheaper Than Sonnet 5

Anthropic introduced Claude Sonnet 5.5, jumping from 10.3% to 70.6% on Terminal-Bench 4.0 and scoring just two points below Opus 5.5 on the GDPval-AA real-world occupational benchmark, while running over 30% faster and up to 30% cheaper per task at identical per-token pricing.
Copilot News 09/28/2026 Read AI Rating: Medium

Claude Sonnet 5.5 Reaches GitHub Copilot, Matching Sonnet 5 With Fewer Steps

Anthropic's Claude Sonnet 5.5 is now generally available in GitHub Copilot, designed for well-scoped everyday work like building features and fixing bugs, matching Sonnet 5's coding performance while using significantly fewer steps, tokens, and tool calls.