Leak claims Sonnet 5.5 beats GPT-6 Sol and nears Astra

Md Ismail Šojal 🕷️ @0x0SojalSecOriginally posted 2026.09.28

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Claude Sonnet 5.5 : Beats GPT-6 Sol, Close to Astra. - Claude Sonnet 5.5 may drop tomorrow. - A claude-sonnet-5-5 ID is already being spotted. - Early tests claim it beats GPT-6 Sol, sits close to Opus 5.5, and could be much cheaper. - Expected to cost less - the mid-tier model becomes good enough that most teams stop paying for Opus. - Treat it as a leak until Anthropic posts.