PUBLIC CONTRIBUTOR

Simon Willison

Independent technical author

First-person technical writing on his own site. No employment or commercial relationship with a featured provider is inferred.

Affiliation recorded at 2025-03-11. Attribution source

Reviewed contributions

Independent perspective · Practitioner perspective

Simon Willison shares how he uses language models for coding, including managing context and accounting for mistakes.

Simon Willison · Published Mar 11, 2025

First-person accountReviewed Sep 17, 2026

What this means for your build

Try a bounded task and review the result. This is personal practice from 2025, not a current comparison of models.

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Why this ranks here 63/100

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Evidence 25% weight: 50/100
First-person account
Actionability 20% weight: 100/100
Try a bounded task and review the result. This is personal practice from 2025, not a current comparison of models.
Originality 15% weight: 100/100
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OpenAI

OpenAI · credits

6 months of ChatGPT Pro for selected maintainers

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Why this ranks here 30/100

Relevance 35% weight: 50/100
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Practical value 25% weight: 50/100
6 months of ChatGPT Pro for selected maintainers
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Included with paid Claude plans; API billing is separate

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Why this ranks here 50/100

Relevance 35% weight: 50/100
General audience fit; eligibility is checked separately.
Practical value 25% weight: 50/100
Included with paid Claude plans; API billing is separate
Timing 20% weight: 50/100
Based on a usable confirmed window; rolling offers receive 50.
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GitHub · tools

Limited core Copilot access

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Why this ranks here 50/100

Relevance 35% weight: 50/100
General audience fit; eligibility is checked separately.
Practical value 25% weight: 50/100
Limited core Copilot access
Timing 20% weight: 50/100
Based on a usable confirmed window; rolling offers receive 50.
Action clarity 20% weight: 50/100
Official action link. Individual conditions still need checking.

Editorial priority, not a probability or trust score. How ranking works