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Build a Chrome extension
A focused browser extension with a few features.
Recommended strength: standardMedium confidence
Recommended
Cursor
GPT-5 mini
standard
Best value
Gemini
Gemini Flash
standard
Lowest cost
OpenAI API
GPT-5 nano
light
Premium
Claude
Claude Sonnet 5
strong
Expected budget
Estimated tokens
4M – 15M
Expected duration
~10h
Why
Extensions are small and well-scoped. A Standard model covers most of it; escalate only for tricky messaging or permissions.
When to upgrade
Upgrade to Strong for complex background/service-worker logic or cross-site messaging.
When a cheaper model is fine
Light is fine for popup UI and copy.
Methodology rec-v0.1 · Last reviewed 2026-07-01. This is editorial guidance, not a definitive ranking. See how we make recommendations.