Their dinner plate chips are impressive.

GPT 5.6 Luna Ultrafast when?

The corresponding OpenAI post https://openai.com/index/previewing-ultrafast/

There is no pricing info, which could mean it's "if you have to ask..." territory or they are simply gauging interest before deciding

> Compared with output speeds reported by Artificial Analysis GPT-5.6 Sol on Ultrafast mode runs 11x faster than Fable 5, and 5x faster than Opus 4.8 on Fast mode.

Awesome work. I'm personally very excited for faster models/inference.

I think speed is underrated to some degree in the current conversation. For a while, I was using Cursor's Composer quite a lot, even over frontier models, just because of how darn fast it was.

I guess Gemini 3.7 Flash is no longer at the pareto frontier of speed to intelligence.

This is really cool. Someone here commented about similarity between this and hardware advancements for AV encode/decode.

I think it's only a matter of time before miniaturization can have a thumbnail sized user-replaceable accessory that contains the LLM built onto the hardware. I admit I don't know how any of that works, but would be amazing to experience. Fully local, fully offline, ultra fast local inference better than any personal computing product.

I've been waiting so long for something amazing to come out of the OpenAI and Cerebras collaboration.

> In our evaluations, GPT-5.6 Sol on Ultrafast mode answered all 2,500 HLE questions in 11 hours and 11 minutes. Claude Fable 5 needed 78 hours and 27 minutes, more than three days of continuous compute, to arrive at the same conclusions. In other words, Ultrafast worked through the frontier of human knowledge in a single working day, achieving comparable accuracy nearly 7× faster.

This is actually insane.

Hopefully the release ultrafast of Terra and Luna too.

Wow, that's even faster than diffusion LLMs but with the Fable-level quality! Congrats!

I swear that now frontier AI stuff comes out few times a week.