Simon Willison’s Weblog

24th April 2026

Tool Millisecond Converter

LLM reports prompt durations in milliseconds and I got fed up of having to think about how to convert those to seconds and minutes.

Posted 24th April 2026 at 4:23 am

Recent articles

DeepSeek V4 - almost on the frontier, a fraction of the price - 24th April 2026
Extract PDF text in your browser with LiteParse for the web - 23rd April 2026
A pelican for GPT-5.5 via the semi-official Codex backdoor API - 23rd April 2026

This is a beat by Simon Willison, posted on 24th April 2026.

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