Simon Willison's Blog
Sustained, sceptical, hands on writing about what large language models can and cannot currently do, from someone who tests claims rather than repeating them. One of the few reliable ways to keep up without drowning in hype.
Guide
AI & Machine Learning
Simon Willison
Ongoing
All
Free
What it is
A working engineer's blog, updated constantly, covering new model releases, techniques, security issues such as prompt injection, and detailed accounts of building things with these tools.
Why it is worth following
The signal to noise ratio. The field generates enormous volumes of confident commentary from people who have not run the thing they are describing. This is the opposite: claims get tested, results get reported including the disappointing ones, and limitations are stated plainly.
The recurring themes worth knowing
Prompt injection and why it remains unsolved, the practical realities of running models locally, and a long running effort to describe what these systems are actually good for without either dismissal or overstatement.
Best for: anyone who needs to stay current and has no appetite for hype.
Ready to start?
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Stuck on something specific?
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