OpenAI is launching its new GPT‑6.1 Sol, promising performance that's neck-and-neck with 6 Astra at just one-fifth the cost.

OpenAI says GPT-6.1 Sol delivers significant improvements over GPT-6 Sol across complex professional tasks, including code ...

Less than 24 hours after announcing that it won’t release its new model, GPT-6.1 Astra, because it’s too dangerous to make ...

IntroductionHello. I'm Usky, an AI enthusiast.“Didn't GPT-6 Sol just come out last week?” “What's the difference between 6 ...

OpenAI today launched GPT–6 Sol and GPT–6 Luna, two new models that follow GPT–6 Astra. OpenAI says the new models were ...

Luna."However, just one week later, on September 29,"GPT-6.1 Sol" was announced."I thought GPT-6 just came out, and now it's ...

OpenAI says GPT-6.1 Sol is "more transparent about its limitations and more reliable at respecting user intent and safety ...

Earlier this month, OpenAI released the first GPT-6 model with Astra. Now GPT-6 is expanding with new GPT-6 Sol ...

Mere hours after the launch of Claude Opus 5.5, GPT-6 Sol and Luna became available to users, per an OpenAI blog post. These ...

OpenAI introduced GPT-6.1 Sol, an upgrade to its GPT-6 Sol model, at its DevDay 2026 event on September 29, 2026, releasing ...

GPT-6 Luna and Sol one week in: where to run them, what devs built, real cost numbers, and where they fell short.

ChatGPT has become so much more than just chat over the last year. To that end, OpenAI is removing limits on text chat. ChatGPT will also improve with a smarter version of GPT-5.6 Sol. Details below.