GPT-5.6 Sol Ultra will be in Codex

mfiguiere 182 points 115 comments July 06, 2026
twitter.com · View on Hacker News

https://x.com/haider1/status/2073695124220006575 , https://xcancel.com/haider1/status/2073695124220006575

Discussion Highlights (15 comments)

postalcoder

I wonder if it's related that that OpenAI has found a way to cut inference costs by half, according to The Information. https://www.theinformation.com/newsletters/ai-agenda/openai-...

andai

For context: > Additionally, we’re introducing a new ultra mode that goes beyond the capabilities of a single agent by leveraging subagents to accelerate complex work. https://openai.com/index/previewing-gpt-5-6-sol/ Can someone explain how this compares with Pro? I thought Pro was already something similar.

jquery

Will individual subscribers have access?

brcmthrowaway

Gamechanger..

lawgimenez

No Twitter, what’s he responding to?

ChrisArchitect

Related: Previewing GPT‑5.6 Sol: a next-generation model https://news.ycombinator.com/item?id=48689028

behnamoh

I still don't know why OpenAI doesn't put gpt-5.5-pro in Codex. It's one hell of a model and easily parallels Fable/Mythos. Sure, it'll use up your quota much faster but that's the price some users are willing to pay for absolutely high quality responses. I think gpt-5.5-pro runs 12x parallel gpt-5.5 agents behind the scene and uses OpenAI's secret sauce to synthesize their answers into one insanely good response.

asn0

The full conversation https://xcancel.com/haider1/status/2073695124220006575#m

timcobb

when will it be available? do we know? I don't have X, not sure if the thread mentions it.

throw394042

I'm working in large US corporation. And I see that I already have access to 5.6-Sol Ultra on my corporate account. I haven't really used it yet. 2 months ago management was showing us scoreboards, praising leaders who used most tokens. Last few weeks, we're getting weekly emails, telling us that whenever we can - we should use cheaper models, and that we should watch the page which shows our tokens usage.

martin_drapeau

Recently, I've been so eager to get new model releases in Codex. I'm hooked. I hope this accelerates development. Shows how dependant I have become to Codex.

villgax

All these names mean squat

xcjsam

Will it have similar limited access like Fable? It is an interesting timeline, as general access for Fable (without using extra credits) is coming to an end :(

tw1984

they better get that out fast, it will become totally meaningless when the next GLM gets there first. more competition is always good for consumers.

internet2000

Hope this forces Anthropic to be less stingy with Fable.

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