datasette code-frequency chart on GitHub

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Summary

Simon Willison shares a GitHub code frequency chart for his Datasette project, illustrating the significant impact of AI coding agents and large language models on his development output, with a notable spike in activity in 2026.

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Cached at: 07/13/26, 11:54 PM

# datasette code-frequency chart on GitHub Source: [https://simonwillison.net/2026/Jul/13/datasette-code-frequency/](https://simonwillison.net/2026/Jul/13/datasette-code-frequency/) 13th July 2026 \- Link Blog **[datasette code\-frequency chart on GitHub](https://github.com/simonw/datasette/graphs/code-frequency)**\. Out of curiosity I decided to see if I could find a useful illustration of the impact of coding agents and Opus 4\.5 class models on my own output\. The best I've found so far is this GitHub chart of frequency of code changes to my[Datasette](https://datasette.io/)open source project: ![Screenshot of a GitHub "Code frequency" bar chart, subtitled "Additions and deletions per week", showing green addition bars and red deletion bars per week from 2018 through 2026, with a y-axis labeled Frequency ranging from -20k to 30k. Activity comes in sporadic bursts: the largest spike is 37,022 additions with -9,528 deletions in 2026, followed by 14,638 additions with -6,584 deletions in late 2025, 15,998 additions in early 2018, and a standout deletion spike of -10,658 in mid-2020, with quieter periods of smaller weekly changes in between.](https://static.simonwillison.net/static/2026/datasette-code-frequency.png) The big spike in activity at the end aligns with Opus 4\.8, GPT\-5\.5, Fable 5 and GPT\-5\.6 Sol\. Posted[13th July 2026](https://simonwillison.net/2026/Jul/13/)at 9:45 pm ## Recent articles - [The new GPT\-5\.6 family: Luna, Terra, Sol](https://simonwillison.net/2026/Jul/9/gpt-5-6/)\- 9th July 2026 - [sqlite\-utils 4\.0, now with database schema migrations](https://simonwillison.net/2026/Jul/7/sqlite-utils-4/)\- 7th July 2026 - [sqlite\-utils 4\.0rc2, mostly written by Claude Fable \(for about $149\.25\)](https://simonwillison.net/2026/Jul/5/sqlite-utils-fable/)\- 5th July 2026 This is a**link post**by Simon Willison, posted on[13th July 2026](https://simonwillison.net/2026/Jul/13/)\. [github190](https://simonwillison.net/tags/github/)[ai2,115](https://simonwillison.net/tags/ai/)[datasette1,525](https://simonwillison.net/tags/datasette/)[generative\-ai1,870](https://simonwillison.net/tags/generative-ai/)[llms1,837](https://simonwillison.net/tags/llms/)[ai\-assisted\-programming397](https://simonwillison.net/tags/ai-assisted-programming/)[coding\-agents221](https://simonwillison.net/tags/coding-agents/) ### 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](https://github.com/sponsors/simonw/)

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June 2026 newsletter from Simon Willison covering AI model releases (Claude Fable 5, GPT-5.6, GLM-5.2), US export restrictions, Datasette updates, and other tools.