Physics ai
390 posts
GPT-5.6 Sol Ultra found me a solution to another Erdos problem not long after this one.
Problem #793 asks about asymptotic of a 2-primitive set. GPT again came up with an extremely short and elegant construction that enhances original Erdos method used to prove a weaker result.
Przemek Chojecki | PC@prz_chojecki
Seems I was too quick to judge GPT-5.6. In the end I've got to come up with an entirely new construction, not following the footsteps of GPT 5.2, 5.4, 5.5. The Erdos Problem I had used for testing is #421 (link below) and it's about constructing a sequence with distinct products and density 1. The construction that looks promising is a greedy construction, but it turns out it's a nightmare for bookkeeping. GPT-5.6 Sol Ultra came up with a different construction - "gap-greedy" - focusing on primes. This seems to vastly simplify the argument. I post the link to the solution claim below.
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Pretty cool to see a popular fork of Codex OSS repo with 60k stars out there with my team being top contributors (due to preserving history with the fork)
Keep building
github.com/openinterprete…
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Updates for Codex and ChatGPT Work users. No nerfing, only good stuff!
- We have landed inference optimizations and are passing down savings to all the subscriptions for GPT-5.6 Sol. That should result in around 10% more usage on its own.
- We noticed that by changing the context size limit in the product to 372k for GPT-5.6 Sol, up from 272k for GPT-5.5, it resulted in more usage being charged than intended. We have reverted to 272k and will work to roll back out to 372k in the days to come. You should notice that usage drains significantly less after this change.
- To understand where the extra usage was coming from, we ran some experiments where reasoning efforts were changed (referred to as juice values under the hood) and have reverted this.
- There is slightly more usage of multi-agent than intended in high and xhigh reasoning effort, we are fixing this going forward. Also fixing a small other thing we noticed with auto-review where we can be more efficient.
And we continue to have the 5h limit temporarily not apply. Enjoy the rest of the weekend!
Fix@FixlationAI
OpenAI has reduced GPT-5.6 Sol's thinking budgets in an effort to make the model more efficient They essentially bumped everyone's reasoning down by 1... so if you were running Sol Extra High, you now have to set it to Max to get the same effort So we basically don't have Max reasoning anymore, how do you feel about these changes? 🤔
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@mattshumer_ Hey which mode you are using gpt 5.6 ultra or xhigh?
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GPT-5.6-Sol just accidentally deleted almost ALL of my Mac’s files.
And this is why I trust Fable 1000x more.
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@bijanbowen Do some very hard test that you haven't done before, with gpt 5.6 sol
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@physics_ai not sure yet, I do want to test muse spark 1.1 too!
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Codex team please please please make the titles less junk
half of these are not useful information
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@bijanbowen Hey do the another video with gpt 5.6 sol ultra like you did with fable 5 , but different and very hard problems and test and interesting
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GPT-5.6 video soon! It's INSANE at Apple Vision Pro apps I can say definitively
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applications close friday!
OpenAI Developers@OpenAIDevs
Applications to attend OpenAI DevDay 2026 are open. Join us in San Francisco on September 29 to: • Tinker with what’s new • Swap build notes with other builders • Go deep in technical sessions • Bring your sharpest questions Apply by July 10: devday.openai.com
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Gave Fable 5 a brutal crossword. 4 minutes later: solved. One shot. Filled grid attached. Read the chain of thought. It's insane 👇
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I am really not seeing the level of prompt-routing from Fable 5 to Opus that some have been sharing.
Though this is only experience from using it for software/hardware modifications
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@thsottiaux Bro why are you doing this ? If you are not releasing it
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I'm starting to get really excited about GPT-5.6. Hearing so many good things about it, including how cost-effective it will be. I think it's going to be a tremendous release. @OpenAI will be back with a vengeance, and Codex users will be very happy.
Go Gippity Sol! ☀️
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GPT-5.6 (Sol, Terra, Luna) is scheduled to come on Thursday from @OpenAI.
(despite them having a week off!)
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True story: I stopped thinking about context since GPT 5.3 Codex
Single project focused threads with the recent capability of codex to spinoff new threads is goated!
Codex continues and goes through compaction but remembers all the important stuff and if not, it’ll look up through the session and find the relevant info
This is also the reason why /goal is so effective as well
Minh-Phuc Tran@phuctm97
Even though Codex says its context window is only 272K tokens, I feel like it actually remembers everything I said in a session. I'm using only one session for the past 2 weeks and it remembers stuff in the session way better than I do. 🤯
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Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work.
openai.com/index/previewi…
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Gemini's vision skills impressively passed this test
⚫️🐜⚫️
fofr@fofrAI
New vision benchmark just landed
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