The real story is a stronger model inside OpenAI, post argues

Ryan Orhan @rynorhnOriginally posted 2026.09.21

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if these rumors are even remotely accurate, the interesting part isn’t sol or opus 5.5. it’s that the models being released might already be downstream of something substantially more capable internally. bel is apparently considered agi internally at openai, and it’s already helping them build what comes next.

This post quotes another post: “Rumor: GPT-6 Sol launches Tuesday, stronger and cheaper than Astra”