Today, we’re releasing GPT‑5.4 in ChatGPT (as GPT‑5.4 Thinking), the API, and Codex . It’s our most capable and efficient frontier model for professional work. We’re also releasing GPT‑5.4 Pro in ChatGPT and the API, for people who want maximum performance on complex tasks. Native computer-use capa…

https://openai.com/index/introducing-gpt-5-4/ https://openai.com/index/gpt-5-4-thinking-system-card/ GPT-5.4 Model | OpenAI API

[image] SILENTLY DROPPED LETS GO BOIS LETS GOOOOOOOOOOO, MORE TIME WITHOUT TOUCHING GRASS! OpenAI give us a codex mobile app and i can die in peace Also thanks OpenAI you guys have been killing it, DOW issues have been causing problems but for me you guys are literally giving me superpowers sin…

Nice. Looks like a mild upgrade to coding but I’ll take it! Restart your CLI’s! :racing_car:

Monthly releases are here. It is somewhat refreshing not having to wait an indefinite amount of time for the next model to be released.

[image] af0r: OpenAI give us a codex mobile app and i can die in peace Yes, yes yes yes yes yes yes yes YEEEESSSSSS!!! And ESPECIALLY a solution to remote codex cli … with dictation …

laying down in a park bare feet on the grass coding from my phone with codex, thats the one thing missing ! i know they are cooking it tho…

So are we going to see a “codex” variant of this model? I’m assuming we won’t based on the presentation of its coding capability …

The tool_search looks very interesting: [image] Tool search | OpenAI API Use tool search to defer large tool surfaces, group related tools with namespaces, and load only the relevant functions at runtime.

The missing rows of “pricing”: Model Input Cached input Output gpt-5.4 (<272k context length) $2.50 $0.25 $15.00 gpt-5.4-pro (<272k context length) $30.00 $180.00 gpt-5.4 (>272k context length) $5.00 $0.50 $22.50 gpt-5.4-pro (>272k context length) $60.00 $270.00 Large context is …

GPT-5.4 Pro and Thinking are here!

Announcements

vb March 5, 2026, 6:47pm 4

@polepole @af0r

Thanks for the announcement post guys!

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GPT-5.4 Pro and Thinking are here!

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