Four major models reportedly lined up for next week, led by GPT-6 Sol vs Opus 5.5

Rajath Gowda @buildwithrajathOriginally posted 2026.09.21

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🚨Next week could be really insane for AI. Four major models are reportedly lined up: Opus 5.5 - ready GPT-6 Sol - ready Gemini 4 Pro - testing Fable 5.2 - ready And apparently, tests of all four have already been seen. We could see 4 major AI launches in the same week. 👀 The two I’m watching most: GPT-6 Sol vs Opus 5.2. Both are rumored to be cheaper to use than Astra and Fable. Which one are you most excited for? 👀