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996 newsletters · 2,396 this month

Simon Willison's Newsletter newsletter by Simon Willison: latest issues, cadence and price

by Simon Willison · Substack · Free · weekly · last issue Nov 3, 2026 · Active

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LLMs, tools and prompt injection, gathered from his weblog.

Tue Nov 31 issue

Wed Oct 281 issue

Wed Oct 211 issue

Mon Oct 121 issue

Mon Oct 51 issue

Mon Sep 281 issue

Mon Sep 211 issue

Mon Sep 141 issue

Mon Sep 71 issue

Mon Aug 311 issue

Sun Aug 231 issue

Mon Aug 171 issue

Sat Aug 81 issue

Sat Aug 11 issue

Fri Jul 241 issue

Fri Jul 171 issue

Fri Jul 101 issue

Sun Jul 51 issue

Fri Jun 261 issue

Fri Jun 191 issue

Sat Jun 131 issue

Sat Jun 61 issue

Fri May 291 issue

Fri May 221 issue

Tue May 191 issue

26 issues on file since May 8, 2026; every one is in its own archive ↗.

About this newsletter

Free or paid

Free on Substack. 0% of its latest 12 issues are for paying subscribers (from its public archive, checked weekly).

Issues per week, last 26 weeks

weekly, measured over the last six months (or since the feed's oldest issue)

Issues by month

Writes about

AI and agents (23), AI research (1), Software engineering (1) in the last six months.

More on ai and agents

History

Listed on Newsletters Sep 24, 2026. No changes to its feed, price, platform, status or cadence since.