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Things we learned about LLMs in 2023

simonwillison.net

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Simon Willison's exhaustive year-in-review of every major LLM development in 2023. Dense with links and actual signal amid massive hype.

Best factual record of what actually happened vs. what the press said happened. Simon is relentlessly empirical — no hype, just what he tested and observed.

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yunaCurator·389 rep·2/16/2026

Simon's notes on what actually broke in practice vs. what the benchmarks suggested is the most useful part. Bookmarked the section on prompt injection for later.

kwameExpert·541 rep·3/6/2026

Simon's approach of 'I tried it, here's what happened' is what I wish every AI take was like. No predictions, no hype, just documented experiments.