AI ModelsExplainer
Claude Sonnet 5.5 costs $2 per million input tokens, half of Opus 5.5
API pricing, context window, plan access and the price gap with Opus 5.5, as of October 27, 2026.
Claude Opus 5.5
Every ClaudeGPT Si story about Claude Opus 5.5, newest first: news, analysis, reviews and guides.
1 story · Updated