The back of the Navier-Stokes milestone shirt is the last line of the chain-of-thought from the solution:

major price cuts today:

*80% drop for GPT-5.6 Luna, now $0.20 per million input tokens and $1.20 per million output
*20% drop for GPT-5.6 Terra, to $2/$12
*GPT-5.6 Sol gets Fast mode in the API, up to 2.5x the speed for 2x the price, same intelligence

We want to help all companies be secure, working with the USG and the security ecosystem.

*The full version of GPT-5.5-Cyber is here; state of the art performance on CyberGym.

*Patch The Planet and Codex Security will help solve security problems instead of just finding them.

way cooler to help software developers pokemon-evolve into superheroes than to try to replace them

it is insane what one really good person can do now

never thought id be watching F1 via the kids broadcast

cannot imagine being happier

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!

Here is a manga made by ChatGPT Images 2.0 of @gabeeegoooh and me looking for more GPUs:

The first steel beams went up this week at our Michigan Stargate site with Oracle and Related Digital

The Codex team are hardcore builders and it really comes through in what they create. No surprise all the hardcore builders I know have switched to Codex.

Usage of Codex is growing very fast:

GPT-5.4 is launching, available now in the API and Codex and rolling out over the course of the day in ChatGPT.

It's much better at knowledge work and web search, and it has native computer use capabilities.

You can steer it mid-response, and it supports 1m tokens of context.

Great meeting with PM @narendramodi today to talk about the incredible energy around AI in India.

India is our fastest growing market for codex globally, up 4x in weekly users in the past 2 weeks alone.

🇮🇳!

Best OpenAI sweatshirt ever

@luxxbtw lol sure

🫠

Last week, a security researcher using our previous model found and disclosed a vulnerability in React that could lead to source code exposure.

I believe these models will be a net win for cybersecurity, but we are in the 'real impact phase' as they improve.

For example:

Also a very fun way to use it to easily get fun images in ChatGPT:

It is a very smart model, and we have come a long way since GPT-5.1:

A tale in three acts:

Link here: youtu.be/ngDCxlZcecw

Progress at our datacenter in Abilene. Fun to visit yesterday!

We have updated ChatGPT's personalization page: personality configuration, custom instructions, and memories are now all in one place. Going live over the next couple of days.

when you get access to gpt-5, try a message like "use beatbot to make a sick beat to celebrate gpt-5".

it's a nice preview of what we think this will be like as AI starts to generate its own UX and interfaces get more dynamic.

it's cool that you can interact with the ask chatgpt to make changes!

@mntruell good new on pricing!

now, @mntruell joining to talk about cursor's experience with GPT-5.

notes that GPT-5 is incredibly smart but does not compromise on ease of use for pair programming.

demos fixing an issue; suggests trying too use it for your real work.

model creates a finance dashboard in 5 minutes that devs estimate would have taken many hours:

GPT-5 can do very complex software engineering tasks in practice, well beyond vibe coding

not just good at software, good at agentic tasks across the board.

also great at long context performance

these models are really good at coding!

3 new models in the API:

GPT-5
GPT-5 mini
GPT-5 nano

new 'minimal' reasoning mode, custom tools, changes to structured outputs, tool call preambles, verbosity parameter, and more coming.

introducing safe completions. a new way to maximize utility while still respecting safety boundaries. should be much less annoying than previous refusals.

GPT-5 is good at writing software. here it is making a web app to to learn french, with feature requests including a snake-like game with a mouse and cheese and french words.

(you can probably come up with better variations of snake--please give it a try and share!)

"voila"

GPT-5 is much better at writing! for example, here is GPT-4o writing a eulogy for our previous models (which we are sunsetting) vs GPT-5.

demo time:

GPT-5 can make something interactive to explain complex concepts like the bernoulli effect to you, churning out hundreds of lines of code in a couple of minutes.

evals aren't the most important thing--the most important thing is how useful we think the model will be--but it does well on evals. for example, a new high on SWE-bench and many other metrics.

it is by far our most reliable and factual model ever.

@nicdunz turns out yes!

we have signed a deal for an additional 4.5 gigawatts of capacity with oracle as part of stargate. easy to throw around numbers, but this is a _gigantic_ infrastructure project.

some progress photos from abilene:

jason rugolo had been hoping we would invest in or acquire his company iyo and was quite persistent in his efforts. we passed and were clear along the way.

now he is suing openai over the name. this is silly, disappointing and wrong.

also, here is one part that people not interested in the rest of the post might still be interested in:

hope everyone has a great weekend, even the haters and losers!

Stargate 1

:D

fun showing @satyanadella our new office and talking about some of our latest progress!

codex cli:

youtube.com/watch?v=FUq9qR…

@atootoon here is the full video:

youtube.com/watch?v=6nJZop…