codex @ openai
Joined October 2009
- Tweets 582
- Following 108
- Followers 1,097
- Likes 882
61 Photos and videos
Pavel Krymets πΊπ¦ retweeted
Apr 30
Never talk about goblins. Our latest blog is live.
openai.com/index/where-the-gβ¦
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Pavel Krymets πΊπ¦ retweeted
Jan 9
With the Claude Code shutdown. I am proud that we build Codex in the open with our OSS repo and we are 100% invested in supporting a flourishing ecosystem of agentic coding tools out there.
You can already build on top of github.com/openai/codex/tree⦠directly, which includes ChatGPT login and same usage as you get in codex. Reach out if you are a builder!
Yesterday we tightened our safeguards against spoofing the Claude Code harness after accounts were banned for triggering abuse filters from third-party harnesses using Claude subscriptions.
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6 Oct 2025
After years of working on SDKs this is the one I'm most excited about. Check it out and let me know what you think!
6 Oct 2025
Codex is now generally available, with a new SDK, enterprise features, etc..
Live demo of vibe coding of a controller for the stage lights (including voice interface!).
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Weβre releasing GPT-5-Codex β a version of GPT-5 further optimized for agentic coding in Codex.
Available in the Codex CLI, IDE Extension, web, mobile, and for code reviews in Github. openai.com/index/introducingβ¦
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9 Sep 2025
There isnβt enough being said about efficient caching when deploying models in production. Structuring your input the right way can lead to 90% tokens being cached in agentic flows. Cached input tokens are 10x cheaper than non-cached ones.
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9 Sep 2025
For Responses API:
1. Don't change instructions and tool in between turns
2. Only append items to the input, never change or remove
3. Set prompt_cache_key to a stable value across turns
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Pavel Krymets πΊπ¦ retweeted
17 Aug 2025
Codex CLI now works with your ChatGPT login, with generous GPT-5 use included in the plus and pro plans.
$ brew install codex
$ codex
It's that simple.
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Pavel Krymets πΊπ¦ retweeted
7 Aug 2025
π£ We shipped major improvements to the Codex CLI today
GPT-5, with usage included in your ChatGPT Plan (no API key needed)
Upgraded prompt, harness, approvals & sandboxing logic... you name it
Get the latest:
1. `npm install -g @openai/codex` -> v0.16
2. `codex login`
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4 Apr 2022
Iβm looking for interview opportunities in Canada for my friend who fled Ukraine after the Russian invasion. She has a BS in CS and 2.5y experience in enterprise Java (Spring, SQL, Hibernate, JPA). Any help is much appreciated!
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2 Mar 2022
Ukrainian shipping company is collecting humanitarian aid to be sent to Ukraine by plane on friday: instagram.com/p/CafcNZrlh1A/. List of required items is in post description. Please donate what you can.
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2 Mar 2022
They ask to cover the discounted shipping cost of 2.30 per lb.
12 Dec 2021
A great recent interview with a C# and TypeScript architect Anders Hejlsberg: youtube.com/watch?v=K3qf8gRFβ¦
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28 Nov 2021
Global using and file scoped namespaces are so nice. Removes a ton of boilerplate with very little downside.
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27 Nov 2021
A new version of Jab compile-time Dependency Injection is out! Now with incremental compilation support and other fixes.
nuget.org/packages/Jab/0.5.1
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27 Nov 2021
I didn't think that cross-compiling the source-generator for multiple version Roslyn is something I need to worry about but it becomes a requirement if you want to run on .NET 5 but use new Roslyn features for .NET 6
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27 Nov 2021
Big thanks to @eehardt who figured out cross targeting for .NET built-in generators. Having a working example helped a lot.
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