Simon Willison posted on 4th September 2026 that the August edition of his sponsors-only monthly newsletter was available to sponsors and to readers who start a sponsorship. The newsletter costs $10/month and offers a curated email digest of the month's most important LLM developments, with sponsors staying a month ahead of the free copy.

The August issue includes more details on OpenAl's accidental cyberattacks, one-shotting Raccoon Heist games with Fable 5 and Sol 5.6, Claude auto mode, Understanding ChatGPT Work, model releases, miscellaneous bits and bobs, Willison's projects, and what he is using at the moment.

Willison linked a copy of the July newsletter as a preview. The page also lists recent articles: “Claude's new system prompt really doesn't want to reproduce song lyrics” from 2nd September 2026, “Claude Fable 5.1 made me a really nice animated pelican” from 1st September 2026, and “Understanding ChatGPT Work” from 30th August 2026.

Simon Willison posted on 4th September 2026 that the August edition of his sponsors-only monthly newsletter was available to sponsors and to readers who start a sponsorship. The newsletter costs $10/month and offers a curated email digest of the month's most important LLM developments, with sponsors staying a month ahead of the free copy.

The August issue includes more details on OpenAl's accidental cyberattacks, one-shotting Raccoon Heist games with Fable 5 and Sol 5.6, Claude auto mode, Understanding ChatGPT Work, model releases, miscellaneous bits and bobs, Willison's projects, and what he is using at the moment.

Willison linked a copy of the July newsletter as a preview. The page also lists recent articles: “Claude's new system prompt really doesn't want to reproduce song lyrics” from 2nd September 2026, “Claude Fable 5.1 made me a really nice animated pelican” from 1st September 2026, and “Understanding ChatGPT Work” from 30th August 2026.