# Introducing GPT-5.5 | OpenAI

<https://openai.com/index/introducing-gpt-5-5/>

- Host: [openai.com](https://links.thingelstad.xyz/hosts/openai.com/)
- Saved: April 23, 2026 (2026-04-24T03:20:37Z)
- Record: https://links.thingelstad.xyz/links/67eef0dd333b/
- JSON: https://links.thingelstad.xyz/links/67eef0dd333b.json

## What Jamie wrote

Most of the highlights here are about coding. I fired up `codex` on [Elixir](https://poapkings.com/elixir/)'s code and asked it to do a review and assessment. It came forward with strong suggestions and quickly understood everything. The model seemed notably fast to me. Just overall it is still mind-blowing how this is all evolving.

## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

## Appears in

- [WT345: Weekly Thing 345 / Codex, Headless, Wikiwise](https://weekly.thingelstad.com/archive/345/), Notable

## Same host

- [Introducing OpenAI Frontier | OpenAI](https://links.thingelstad.xyz/links/9e1fa854ea22/) (openai.com, February 5, 2026)
- [Introducing GPT-5.3-Codex | OpenAI](https://links.thingelstad.xyz/links/068683f1f425/) (openai.com, February 5, 2026)
- [Codex Security: now in research preview | OpenAI](https://links.thingelstad.xyz/links/f56c5f5d0b8a/) (openai.com, March 11, 2026)
- [Introducing ChatGPT for Excel and new financial data integrations | OpenAI](https://links.thingelstad.xyz/links/e4c85c550351/) (openai.com, March 11, 2026)
- [Introducing ChatGPT Images 2.0 | OpenAI](https://links.thingelstad.xyz/links/08ccbc17ddee/) (openai.com, April 23, 2026)

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## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://openai.com/index/introducing-gpt-5-5/