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GPT-5.5

openai.com

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Re: GPT-5.5

#221

Post by BeetleB »

DrProtic wrote: post #204
simonw wrote: post #195

This doesn't have API access yet, but OpenAI seem to approve of the Codex API backdoor used by OpenClaw these days... https://twitter.com/steipete/status/2046775849769148838 and https://twitter.com/romainhuet/status/2038699202834841962 And that backdoor API has GPT-5.5. So here's a pelican: https://simonwillison.net/2026/Apr/23/gpt-5-5/#and-some-peli... I used this new plugin for LLM: https://github.com/simonw/llm-op…

That pelican you posted yesterday from a local model looks nicer than this one. Edit: this one has crossed legs lol

It really needs to pee.

Re: GPT-5.5

#222

Post by XCSme »

simonw wrote: post #195

This doesn't have API access yet, but OpenAI seem to approve of the Codex API backdoor used by OpenClaw these days... https://twitter.com/steipete/status/2046775849769148838 and https://twitter.com/romainhuet/status/2038699202834841962 And that backdoor API has GPT-5.5. So here's a pelican: https://simonwillison.net/2026/Apr/23/gpt-5-5/#and-some-peli... I used this new plugin for LLM: https://github.com/simonw/llm-op…

Is this direct API usage allowed by their terms? I remember Anthropic really not liking such usage.

Re: GPT-5.5

#224

Post by elAhmo »

Is Codex receiving 5.4 or 5.5 release?

I am still using Codex 5.3 and haven't switched to GPT 5.4 as I don't like the 'its automatic bro trust us', so wondering is Codex going to get these specific releases at all in the future.

Re: GPT-5.5

#225

Post by chis »

aliljet wrote: post #161

I've found myself so deeply embedded in the Claude Max subscription that I'm worried about potentially makign a switch. How are people making sure they stay nimble enough not to get trarpped by one company's ecosystem over another? For what it's worth, Opus 4.7 has not been a step up and it's come with an enormously higher usage of the subscription Anthropic offers making the entire offering double worse.

It's surprisingly simple to switch. I mean both products offer basically identical coding CLI experiences. Personally I've been paying for Claude max $100, and ChatGPT $20, and then just using ChatGPT to fill in the gaps. Specifically I like it for code review and when Claude is down.

Re: GPT-5.5

#226

Post by andriy_koval »

simonw wrote: post #195

This doesn't have API access yet, but OpenAI seem to approve of the Codex API backdoor used by OpenClaw these days... https://twitter.com/steipete/status/2046775849769148838 and https://twitter.com/romainhuet/status/2038699202834841962 And that backdoor API has GPT-5.5. So here's a pelican: https://simonwillison.net/2026/Apr/23/gpt-5-5/#and-some-peli... I used this new plugin for LLM: https://github.com/simonw/llm-op…

what is your setup for drawing pelican? Do you ask model to check generated image, find issues and iterate over it which would demonstrate models real abilities?

Re: GPT-5.5

#227

Post by nikanj »

jfkimmes wrote: post #143
tnkuehne wrote: post #127

Earlier quoted context omitted.

isnt it like cyber question are being routed to dumper models at openai?

Do you have a source for that? Neither the release post, nor the model card seems to indicate anything like this?

Anything that even vaguely smells like security research, reverse engineering or similar "dual-use" application hits the guardrails hard and fast. "Hey codex, here is our codebase, help us find exploitable issues" gives a "I can't help you with that, but I'm happy to give you a vague lecture on memory safety or craft a valgrind test harness"

Re: GPT-5.5

#228

Post by nickvec »

I'm conflicted whether I should keep my Claude Max 5x subscription at this point and switch back to GPT/Codex... anyone else in a similar position? I'd rather not be paying for two AI providers and context switching between the two, though I'm having a hard time gauging if Claude Code is still the "cream of the crop" for SWE work. I haven't played around with Codex much.

Re: GPT-5.5

#229

Post by tpurves »

jfkimmes wrote: post #122

Everyone talked about the marketing stunt that was Anthropic's gated Mythos model with an 83% result on CyberGym. OpenAI just dropped GPT 5.5, which scores 82% and is open for anybody to use. I recommend anybody in offensive/defensive cybersecurity to experiment with this. This is the real data point we needed - without the hype! Never thought I'd say this but OpenAI is the 'open' option again.

The real 'hype' was that the oh-snap realization that Open AI would absolutely release a competitive model to Mythos within weeks of Anthropic announcing there's, and that Sam would not gate access to it. So the panic was that the cyber world had only a projected 2 weeks to harden all these new zero days before Sam would inevitably create open season for blackhats to discover and exploit a deluge of zero-days.

Re: GPT-5.5

#230

Post by wincy »

losvedir wrote: post #77

> It excels at ... researching online How does this work exactly? Is there like a "search online" tool that the harness is expected to provide? Or does the OpenAI infra do that as part of serving the response? I've been working on building my own agent, just for fun, and I conceptually get using a command line, listing files, reading them, etc, but am sort of stumped how I'm supposed to do the web search piece of it.…

I’ve noticed when writing little bedtime stories that require specific research (my kids like Pokemon stories and they’ve been having an episodic “pokemon adventure” with them as the protagonists) ChatGPT has done a fantastic job of first researching the moves the pokemon have, then writing the actual story. The only mistake it consistently makes is when I summarize and move from a full context session, it thinks that Gyarados has to swim and is incapable of flying.

It definitely seems like it does all the searching first, with a separate model, loads that in, then does the actual writing.

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