Simon Willison’s Weblog

23rd April 2026

Release llm-openai-via-codex 0.1a0 — Access OpenAI models via an existing Codex subscription

Hijacks your Codex CLI credentials to make API calls with LLM, as described in my post about GPT-5.5.

Posted 23rd April 2026 at 7:22 pm

Recent articles

Some thoughts on the Navier–Stokes Millennium Prize Problem - 8th September 2026
The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026

This is a beat by Simon Willison, posted on 23rd April 2026.

openai 461 llm 631 codex 57

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