X rumor says GPT-5.6, Cerebras 750 token/s release and Claude Opus 5 may land today

Scobleizer · x · 2026-07-23

Rumors circulating on X suggest a big model-release day, with claims that GPT-5.6 "Sol Ultra" and a Cerebras-powered release could arrive at 750 tokens/s, alongside hints that Claude Opus 5 is imminent. The poster says none of it can be verified, but thinks it smells like a major shipping day.

Related event: Rumors Swirl Over Opus 5, GPT-5.6, and Codex Voice Releases(4 posts)→

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