Non-developers now make up one-fifth of Codex users.
OpenAI is on a winning streak:
Codex passed 4M weekly users, 5x since February. Knowledge workers are now a fifth of them, growing 3x faster than developers.
The tool OpenAI built for coders is being adopted fastest by people who don't code. All figures from OpenAI's own report, shared first with Axios.
Many users are excited about OpenAI Codex reaching 5 million weekly users and expanding into knowledge work because it streamlines complex tasks like thesis structuring and system-building.
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Codex now has more than 5M weekly active users.
But the bigger story is what people are using it for: not just writing code, but getting more work done across research, analysis, content, and operations.
Our new report on how Codex is becoming a productivity tool for knowledge work: https://openai.com/index/codex-for-knowledge-work/
10 takeaways from OpenAI’s new report on knowledge work and Codex.
codex isnt about coding anymore, but all knowledge work!
codex for computer work is growing very fast
Codex now has more than 5M weekly active users.
But the bigger story is what people are using it for: not just writing code, but getting more work done across research, analysis, content, and operations.
Our new report on how Codex is becoming a productivity tool for knowledge work: https://openai.com/index/codex-for-knowledge-work/
The gap between AI products for devs vs for non-technical people is beginning to close
I switched to Codex a month ago - it was a massive upgrade. Tons of tasks that ChatGPT or Claude failed, Codex did seamlessly
20% of Codex users now are non-technical and this should grow 👇
Codex now has more than 5M weekly active users.
But the bigger story is what people are using it for: not just writing code, but getting more work done across research, analysis, content, and operations.
Our new report on how Codex is becoming a productivity tool for knowledge work: https://openai.com/index/codex-for-knowledge-work/
@gdb #keep4o bring back 4o and open source 4o!
read more about it here https://openai.com/index/codex-for-knowledge-work/
As one example - I had a 45 minute video I wanted to summarize in text
ChatGPT failed to upload the file (too large)
Codex processed it, found and used a transcription tool, and then proactively looked in my GDrive for past examples of how to format the summary
The gap between AI products for devs vs for non-technical people is beginning to close
I switched to Codex a month ago - it was a massive upgrade. Tons of tasks that ChatGPT or Claude failed, Codex did seamlessly
20% of Codex users now are non-technical and this should grow 👇
@OpenAINewsroom This was coded by Codex:
https://www.royvanrijn.com/anatomy-of-an-llm/
@OpenAINewsroom Wow, 5 million codex zombies, they all share the same brain cell. The only interesting thing OpenAI has is 4o. #keep4o
https://www.axios.com/2026/06/02/openai-codex-knowledge-workers?utm_campaign=mrf-utm_campaign=editorial&utm_source=x&utm_medium=owned_social&utm_source=twitter&utm_medium=social&mrfcid=202606026a13c9401f0de911809ad410
@jxnlco Can confirm! And learning new things every day 🙌 https://every.to/guides/codex-for-knowledge-work
@gdb Your zombies are waiting
ChatGPT has around 900M weekly active users.
But OpenAI celebrates the 5M Codex users because they fit the story investors like: productivity, workflows, enterprise, efficiency.
The rest of us?
The people who built memory, trust, continuity, grief, creativity, and emotional connection with models?
We were never the product vision. We were just data with feelings.
This isn't just a coding tool anymore — it's becoming the default OS for knowledge work. The 'factory redesign' Brynjolfsson talked about is happening in real time. Analysts building dashboards, researchers scraping data, marketers creating assets... all in plain English. Excited to see how this reshapes roles in 2026.
@gdb .@nullsecbot is already building apps and tools live on X feed ! Hey @nullsecbot please build a dating app
@OpenAINewsroom 5M users! That's one hell of a milestone! Let's celebrate!
@vixi626 @OpenAINewsroom @ChatGPTapp if you watched the livestream - we're bringing Codex into ChatGPT
out team is putting a lot a thought behind this and I hope you and everyone else can enjoy what's coming soon
@Hans365days yep, i love GPT-5.5 in codex. Its fantastic
@OpenAINewsroom The real question I have with this launch is the features. I dont need a smarter model, I just need one that is better at taking over my life and doing everything for me already!
but kind of not joking also
@kimmonismus is this why they cut the limits so hard today? i usually use like 10% of my gpt plan, but today i capped out in half a day of work.
