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Product / feature launchSpeech & Audio1 source · Oct 9, 2026

A new feature for my blog, built using my voice

I used the ChatGPT desktop app for this, in the Codex tab, using the voice conversation mode, running against a local development environment.

Key points

  • I built the feature almost entirely using my voice, chatting away to my laptop while I cooked dinner.
  • I started the session against my local simonwillisonblog checkout by typing:
  • I had a pretty good idea of what I wanted to build, and it's a simple enough Django feature that I was certain the model (in this case GPT-6 Astra High) would be able to do it.
  • Here's an extract of my voice transcript that was captured by Codex:

Sources (1)

  • [1]A new feature for my blog, built using my voice
    Simon Willison's Weblog · Oct 9, 12:54 PM
    I used the ChatGPT desktop app for this, in the Codex tab, using the voice conversation mode, running against a local development environment.
    I built the feature almost entirely using my voice, chatting away to my laptop while I cooked dinner.

Extractive summary: sentences quoted from the sources.