Previewing GPT-5.6 Sol
OpenAI · blog · models
What it is — OpenAI’s official preview of the GPT-5.6 Sol / Terra / Luna models.
Key points
- A next-generation model family preview from OpenAI.
- Positioned as a step up in the GPT-5.x line.
- See the post for the full capability and benchmark specifics.
💬 The room said — Sparked a long thread, though most of it was pun-based ribbing about the model names rather than serious analysis. The one substantive thread of interest was the cheaper Terra variant apparently matching GPT-5.5 quality.
Shared by Seb Kay in #ai-dev.