Article · 2026-07-13 · 2 moments

datasette code-frequency chart on GitHub

datasette code-frequency chart on GitHub 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 open source project: The big spike in activity at the end aligns with Opus 4.8, GPT-5.5, Fable 5 and GPT-5.6 Sol. Tags: github, ai, datasette, generative-ai, llms, ai-assisted-programming, coding-agents ✦ AI generated

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HOST Simon Willison

Anecdote◆

The GitHub code-frequency chart for the Datasette project is the best illustration found so far of the impact of coding agents and Opus 4.5-class models on personal coding output.

Simon Willison shares a GitHub code-frequency chart for his Datasette project as the clearest evidence he's found of how coding agents and Opus 4.5-class models have changed his own output.

transcript

Simon Willison: 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 open source project

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Data◆

The large spike in code-change activity at the end of the chart coincides with the releases of Opus 4.8, GPT-5.5, Fable 5, and GPT-5.6 Sol.

Willison notes that the sharp uptick in his Datasette commit activity lines up with the release timing of several recent frontier AI models.

transcript

Simon Willison: The big spike in activity at the end aligns with Opus 4.8, GPT-5.5, Fable 5 and GPT-5.6 Sol.

Highlight slides

Coding Agents' Impact, Visualized✦ from: The GitHub code-frequency chart for the Datasette project is the best illustration found so far of the impact of coding agents and Opus 4.5-class models on personal coding output.Commit Spike Tracks Model Releases✦ from: The large spike in code-change activity at the end of the chart coincides with the releases of Opus 4.8, GPT-5.5, Fable 5, and GPT-5.6 Sol.Why Datasette's Chart Stood Out✦ from: The GitHub code-frequency chart for the Datasette project is the best illustration found so far of the impact of coding agents and Opus 4.5-class models on personal coding output.Models Coinciding With the Spike✦ from: The large spike in code-change activity at the end of the chart coincides with the releases of Opus 4.8, GPT-5.5, Fable 5, and GPT-5.6 Sol.

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