Sonnet 5.5 cuts per-task cost up to 30%, commentators say OpenAI is cornered
kimmonismus · x · 2026-09-29
Anthropic confirmed Sonnet 5.5 keeps Sonnet 5 pricing while needing far fewer tokens per task: up to 30% lower cost per task and over 30% faster output, its fastest Sonnet yet. Commentator kimmonismus argues that at the same price as GPT-6-Sol it is more efficient, faster, and stronger overall, close to Opus 5.5 — forcing OpenAI to ship something exceptional imminently.
Related event: Anthropic Launches Claude Sonnet 5.5: Over 30% Faster, Up to 30% Cheaper(58 posts)→
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