Simon Willison’s Weblog

Subscribe

31st March 2026

Release llm-echo 0.4 — Debug plugin for LLM providing an echo model
  • Prompts now have the input_tokens and output_tokens fields populated on the response.

This is a beat by Simon Willison, posted on 31st March 2026.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe