Simon Willison announces that the August edition of his sponsors‑only monthly newsletter is now available. The issue covers topics such as OpenAI’s accidental cyberattacks, new game releases, Claude auto mode, ChatGPT work model updates, and miscellaneous projects and tools he’s using. A preview of the July newsletter is also provided, and sponsors can access the full content for $10 per month.
Simon Willison has released the September edition of his sponsors‑only monthly newsletter. The issue covers new Fable class models, a pricing war, 3D graphics with Blender and pixel art, LLMs applied to mathematics, accidental cyberattacks, the vulnapocalypse affecting Datasette, his current tools, and software releases for 2026. Sponsors can access the full newsletter for $10/month, with an August preview available for free.
Anthropic and OpenAI have introduced matching API credit benefits for their premium ChatGPT subscription plans. Subscribers paying $100, $200, or $500 per month receive an equivalent amount of expiring credits that can be applied to their respective APIs. The author, who holds subscriptions with both services, notes this allows for immediate use in public-facing demos without additional cost.
Simon Willison is live‑blogging the OpenAI DevDay event in Fort Mason, San Francisco, covering the keynote and other highlights. He received a free ticket and a seat in the "creator" area for the keynote. The blog will include notes from the day’s sessions.
Simon Willison discusses a new inflection point in October 2026 for creating video games using AI, noting that Claude Opus 5.5 now reliably produces compelling 3D models, music, and especially game design. He reports having successfully "vibe coded" four enjoyable games without inspecting the code, and highlights that the real challenge is now generating novel, delightful concepts that AI alone could not conceive. The author compares Opus 5.5’s fun factor to GPT‑6 Astra, which he finds lacking in that regard.
The article titled "How to Maximize Your Coding Agent Subscriptions" discusses ways to get more out of your coding agent subscriptions. It was published on Towards Data Science and focuses on optimizing the use of these tools. The post offers practical tips and strategies for users to enhance their experience with coding agents.
By Eivind Kjosbakken