With gpt-5-codex, some will feel that it's the best thing since sliced bread, some will see its quirks.
Personally it is my favorite collaborator for coding, fast for small things, working hard when it matters and a solid jump in produced code quality.
$ codex -m gpt-5-codex
Tibo
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- Team is hard at work on the next version, lots of small and big things we’ve learned from v0. What’s the top thing that you would like to see fixed in GPT-5 Codex?OpenAI really cooked with GPT-5 Codex
- 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.
- Pro tip: Enable codex code reviews, it's been described multiple times to me as superhuman in its ability to spot subtle flaws. Navigate to chatgpt.com/codex, speedrun the onboarding, enable for your repos in the settings. Enjoy deep reviews on every PR.
- Currently serving gpt-5-codex at degraded speeds, about 2X, due to the very high demand. We are finding GPUs left and right to match demand, we'll keep you postedDemand for GPT-5-Codex is higher than forecasted and we need to stand up more GPUs! In the meantime Codex is running 2x slower than targets. Working on fixing this ASAP
- We promised unprecedented transparency for Codex and to take the reports of degradation seriously, despite seeing incredible growth week over week. Here is our report and what we have found over the last seven daysWe have concluded our initial investigation into increased reports of degradation for Codex and we will share it out by end of day. What is your bet on what we'll include in there and some of the findings?docs.google.comGhosts in the Codex MachineGhosts in the Codex Machine Tibo & the Codex Team We have not found a conclusive large issue that would explain a consistent degradation of Codex over time. Instead we believe there is a combination...
- Codex team is doing a weeklong hackathon starting next week, what should we build? Other than CLI auto-update, we're on that already
- We are really bad at naming, but I'm excited for the rest of this week. Codex team is on fire.
- We've upgraded all our models in Codex. You can now use gpt-5.1, gpt-5.1-codex and gpt-5.1-codex-mini. All are a step-up that you should able to feel in daily use and you can expect us to continue pushing here on the frontier sooner than you might think.
- /review now in Codex CLI Use it to get a quick review from codex on your code changes locally. Will expand a lot in coming days, send Daniel your feedback!Excited to release v1 of /review in the Codex CLI! You can now use gpt-5-codex to investigate and find critical bugs in your code. Check it out and let us know if you have any feedback!00:00
- Small upgrade to Codex, we have updated gpt-5-codex within Codex. The model should feel better, more collaborative, and across the board we gained a few percentage points for the evals we care about. Also a tad more token-efficient, needing ~3% less to achieve similar results.Is it me or Codex got a little smarter today? Same gpt-5-codex high on v0.55 but now it's more careful about edge cases and I don't have have to guide it too much. GG! @thsottiaux@embirico
- We have reset everyone's limits for gpt-5-codex to allow you all to benefit more from it today and as a way to make up for the slowdowns earlier while we were provisioning additional GPUs. We'll continue to add capacity throughout the week to maintain the speed. Enjoy!
- We gave gpt-5-codex a small sibling, you can now try gpt-5-codex-mini in Codex. Smaller, so up to 4X more usage included. $ codex -m gpt-5-codex-mini Also increased usage limits by 50% for Plus, Edu and Team plans and gave Pro priority processing for a faster experience.You can now get more Codex usage from your plan and credits with three updates today: 1️⃣ GPT-5-Codex-Mini — a more compact and cost-efficient version of GPT-5-Codex 2️⃣ 50% higher rate limits for ChatGPT Plus, Business, and Edu 3️⃣ Priority processing for ChatGPT Pro and
- Codex had its strongest growth in one day yesterday since the launch of gpt-5-codex. Way to motivate the team during a gnarly investigation that's making us go through every piece of infra, hardware and line of code in our system.
