GPT-6 Sol rumored for Thursday, September 17, reportedly far faster than Astra
A leak claims Sol is in internal testing and generated about 28K tokens in roughly 3 minutes versus 19 minutes for Astra on the same task, with better usage limits and Terra and Luna possibly following.

🚨 GPT-6 Sol : Reportedly launching THIS THURSDAY OpenAI might be moving insanely fast with the GPT-6 lineup. > GPT-6 Sol is reportedly targeting September 17 > Sol has reportedly already entered internal testing >Early testing suggests it's significantly faster than Astra One reported test generated ~28K tokens in ~3 minutes The same task reportedly took Astra ~19 minutes for ~25K tokens >Sol is rumored to trade a little of Astra's maximum reasoning depth for speed + throughput >Could become the everyday workhorse of the GPT-6 family >Some reports suggest much better usage limits than Astra >Terra and Luna could potentially follow as additional GPT-6 variants OpenAI has not officially confirmed Sol or a Thursday launch And this is what makes Sol interesting. Astra appears to be built around maximum capability. Sol could be built around something arguably more useful: frontier intelligence that you can actually use all day. If the reported speed difference holds up, OpenAI could have a model that produces Astra-scale outputs in a fraction of the time. GPT-6 Astra just arrived. GPT-6 Sol might already be next 👀🔥 The September 17 launch date, naming, specifications and lineup are still unconfirmed. OpenAI's published materials currently document GPT-6 Astra, not GPT-6 Sol.