Alex
1.3K posts
Did Deepseek really wait until OpenAI released GPT-5.5 to steal the show?
Chubby♨️@kimmonismus
Deepseek v4 is a huge step upwards compared to DeepSeek 3, outperforms on SWE verified opus 4.6 and GPT-5.4 and sets a new record on Codeforces. Needs to be tested against opus 4.7 and GPT-5.5 tho and see if real world usage holds its promises. Big release! Sota open source model!
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we're rolling codex out to whole companies/enterprises. ping me gdb@openai.com if of interest!
Sam Altman@sama
We tried a new thing with NVIDIA to roll out Codex across a whole company and it was awesome to see it work. Let us know if you'd like to do it at your company!
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The funny thing is they can’t even release Mythos now because they’re out of compute 😂😂😂
ARC Prize@arcprize
GPT-5.5-Pro on ARC-AGI (Verified) ARC-AGI-2: - Max: 82.2%, $10.76 - High: 84.6%, $10.51 GPT-5.5-Pro performs on par with GPT-5.5 on ARC-AGI for +1 OOM cost
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@scaling01 One is publicly available and one is only available to a handful of companies
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it's safe to say that Anthropic has a massive lead over OpenAI if that really was their largest model
Anthropic had Mythos since February and it's still ahead or tied in every benchmark
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Really excellent work by the inference team to serve this model so efficiently!
To a significant degree, we have to become an AI inference company now.
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So Anthropic is benchmaxxing?
Chris@chatgpt21
OpenAI releases their SWE scores while noting that Anthropic reported signs of memorization on a subset of problems 😮
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With GPT-5.5, Codex now gets more of the job done across the browser, files, docs, and your computer.
We've expanded browser use so Codex can interact with web apps, and test flows, click through pages, capture screenshots, and iterate on what it sees until it completes the task.
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My new cryptography puzzle is now live. Will pay $1,000 to the first person who DMs me the plaintext decryption of the first line.
2nd line is a hint. If you send me slop, AI hallucinations, or a decryption of the 2nd line, you are disqualified.
x.com/theo/status/20…
Theo - t3.gg@theo
For no reason in particular, I made my first crypto challenge. I will pay $1,000 to whoever solves it first. Winner is whoever gets the answer into my DMs first.
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GPT-5.5 is a new class of intelligence.
This intelligence makes it intuitive to use; it completes challenging tasks with little micromanagement. Also very token efficient, and runs with low latency and at scale.
A real step toward a new way of getting computer work done.
OpenAI@OpenAI
Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex.
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🙇
Ravi Avasarala@kagehiko
One thing I gotta hand @openai is the way they'd built the Codex team w/ @embirico and @thsottiaux.. relentless focus on taste and craft despite being caught flat footed by cc.. and we can see the results.. the vibes are immaculate. The products are great. And a lot to look forward to as a user/dev. Like Steve said.. A players attract A players.
ART
Introducing GPT-5.5
A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.
Now available in ChatGPT and Codex.
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Confirmed that Claude Code got dumber, not Claude. They shipped slop and it made the models worse.
ClaudeDevs@ClaudeDevs
Over the past month, some of you reported Claude Code's quality had slipped. We investigated, and published a post-mortem on the three issues we found. All are fixed in v2.1.116+ and we’ve reset usage limits for all subscribers.
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Let me get this straight: the people building Claude Code weren't even using the same version they charge us $200/month for. That's why it took a month of paying customers screaming into the void before anyone noticed it was broken. Cool beta test, thanks for letting us fund it.
ClaudeDevs@ClaudeDevs
Over the past month, some of you reported Claude Code's quality had slipped. We investigated, and published a post-mortem on the three issues we found. All are fixed in v2.1.116+ and we’ve reset usage limits for all subscribers.
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