GPT-6 Sol may be imminent: insider claims new 'astra' base model is ready for RL post-training

haider1 · x · 2026-09-11

Blogger haider1 speculates GPT-6 Sol is coming soon, claiming the new 'astra' model is essentially the base model that OpenAI will run RL/post-training on. He expects GPT-6 Sol to be faster, cheaper, and likely the uncapped model for Plus-tier users, and claims astra low already outperforms GPT-5.6 sol max. Unverified. (Unverified rumor.)

Related event: "GPT-6 Sol" Apparently Surfaces in OpenAI API and OpenRouter(6 posts)→

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