---
title: llm-gemini 0.34
link: https://simonwillison.net/2026/Sep/2/llm-gemini/
source: simonwillison-net
published: 2026-09-02T16:39:38Z
updated: 2026-09-02T16:39:38Z
first_seen: 2026-09-04T12:14:41.802665207Z
labels:
- ai
- gemini
- generative-ai
- llm
- llm-release
- llms
- pelican-riding-a-bicycle
summary: 'Release: llm-gemini 0.34 New model gemini-3.8-flash for Gemini 3.8 Flash, with low, medium and high thinking levels. #146 Fixed async responses failing to record the resolved model version. Thanks, Charlie Tonneslan. #137 Google released Gemini 3.8 Flash (and 3.8 Flash Cyber, but that''s available to "trusted defenders" only) today. Here are the pelicans for high, medium, and low. This is high: For comparison, here are the same pelicans generated using Gemini 3.7 Flash. Something I appreciate about Gemini Flash is that it''s fast, cheap, and competent at things like HTML and JavaScript. I was messing around with it and prompted "make me a cool thing in html" and it built this, which is certainly a cool thing in HTML! Took 13 seconds, cost 1.8 cents. Your browser does not support HTML5 video. If you click through to the demo you''ll see one more thing I built with Gemini 3.8 Flash. My markdown-svg-renderer tool lets me feed in the URL to a Gist with Markdown in and renders that markdown with fenced code blocks for SVG correctly rendered. I used Gemini 3.8 Flash (with my very basic llm-coding-agent coding agent plugin) to add support for HTML as well, so now any HTML blocks in the Markdown are rendered using a sandboxed iframe. Here''s the transcript. Tags: ai, generative-ai, llms, llm, gemini, pelican-riding-a-bicycle, llm-release'
content: extracted
html: 2026-09-02-llm-gemini-0-34.html
images:
- source: https://static.simonwillison.net/static/2026-09-02/image.jpg
  original:
    file: 2026-09-02-llm-gemini-0-34.image-7ebbffe2e1d1.jpg
    width: 914
    height: 686
  color: '#c6e9fd'
---

> - New model `gemini-3.8-flash` for [Gemini 3.8 Flash](https://blog.google/innovation-and-ai/models-and-research/gemini-models/3-8-flash-and-3-8-flash-cyber/), with low, medium and high thinking levels. [#146](https://github.com/simonw/llm-gemini/issues/146)
> - Fixed async responses failing to record the resolved model version. Thanks, [Charlie Tonneslan](https://github.com/c-tonneslan). [#137](https://github.com/simonw/llm-gemini/pull/137)

Google released [Gemini 3.8 Flash](https://blog.google/innovation-and-ai/models-and-research/gemini-models/3-8-flash-and-3-8-flash-cyber/) (and 3.8 Flash Cyber, but that's available to "trusted defenders" only) today.

Here are [the pelicans](https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2Ff8820ce47db87490734117e9be4984c3) for high, medium, and low. This is high:

![Description by Gemini 3.8 Flash: Digital illustration of a cartoon pelican wearing a red and white polka-dot scarf riding a teal cruiser bicycle along a wooden boardwalk by the beach, with a small blue fish in the front basket and a glowing sun over the ocean.](https://static.simonwillison.net/static/2026-09-02/image.jpg)

For comparison, here are the same pelicans [generated using Gemini 3.7 Flash](https://tools.simonwillison.net/markdown-svg-renderer.html?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2F6779a22d5e7bb6bdf29936f1600a5259).

Something I appreciate about Gemini Flash is that it's fast, cheap, and competent at things like HTML and JavaScript. I was messing around with it and prompted "make me a cool thing in html" and [it built this](https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2Fb6149a49d327164d67d62c3d12992e48#how-to-use-it), which is certainly a cool thing in HTML! Took 13 seconds, cost 1.8 cents.

Your browser does not support HTML5 video.

If you click through to [the demo](https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2Fb6149a49d327164d67d62c3d12992e48#how-to-use-it) you'll see one more thing I built with Gemini 3.8 Flash.

My [markdown-svg-renderer tool](https://tools.simonwillison.net/markdown-svg-renderer) lets me feed in the URL to a Gist with Markdown in and renders that markdown with fenced code blocks for SVG correctly rendered.

I used Gemini 3.8 Flash (with my *very* basic [llm-coding-agent](https://github.com/simonw/llm-coding-agent) coding agent plugin) to add support for HTML as well, so now any HTML blocks in the Markdown are rendered using a sandboxed iframe. [Here's the transcript](https://gist.github.com/simonw/3e36b98292dfdc1b3baff158faa743f7).