Rumor: OpenAI to launch GPT-6 Sol Tuesday, cheaper and smarter, aided by internal 'AGI' model Bel
YassMob · x · 2026-09-21
Per rumors relayed by @YassMob (unverified): OpenAI will release GPT-6 Sol on Tuesday — both cheaper and more intelligent than 6 Astra, described as a "6.2-level" jump.
The release was reportedly helped by an internal model named Bel, considered "significantly more capable than Astra" and viewed as "AGI" within OpenAI. On Anthropic, the thread asks how Opus 5.5 compares to Astra; the author says hearsay puts them at roughly the same level.
Related event: Rumor: OpenAI to Launch GPT-6 Sol on Tuesday(2 posts)→
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