Simon Willison’s Weblog

Subscribe

19th October 2025

Research minijinja-vs-jinja2 — Benchmarking the Python bindings for minijinja (https://github.com/mitsuhiko/minijinja) against Jinja2 (https://palletsprojects.com/p/jinja/) on Python 3.14 and 3.14t measured template render performance using a realistic e-commerce template with inheritance, loops, and ~65KB HTML output. The suite runs 200 iterations per scenario, captures mean/median/std/min/max, and provides reproducible scripts (run_benchmark.sh, benchmark.py) plus matplotlib charts to visualize results.

Recent articles

This is a beat by Simon Willison, posted on 19th October 2025.

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