The ai that writes code is now half the codebase, and the hours never left the week. bairesdev’s q3…
the ai that writes code is now half the codebase, and the hours never left the week. bairesdev’s q3 survey of 705 devs puts the share writing half or more of their code with ai at 42%, up from 12%, with 13 hours saved per week — all moved into reviewing and debugging it.
55% say agents still ship wrong code too often.
Context
Verified source: BairesDev's Q3 2026 Dev Barometer was fielded in August 2026 among 705 software developers in 60-plus countries, and its executive summary is dated Sep 15, 2026. BairesDev's research page says developers now save 13 hours a week on coding, up from 7 a year ago, and that only 21% spend most of their week writing new code.
The blog post's title says developers now spend the hours AI freed up answering for the code.
The 705 developers and 13 hours saved per week match BairesDev. The 42% writing half or more of their code with AI, the 12% a year earlier and the 55% who say agents ship wrong code too often were not seen in the sources read, so unsupported here, not refuted. in the excerpts read. That the saved hours moved into review and debugging is close to the blog title but the exact split was not seen. BairesDev sells software services, so the survey is a vendor survey.
Related work
- Dev Barometer data deck (PDF) ↗Fielded Aug 2026, 705 developers and 41 CTOs.
- BairesDev blog post ↗Q3 2026 findings.
- BairesDev research page ↗Headline figures.
Watch next
- Open the Data Deck PDF for the 42%, 12% and 55% figures.
Sources
Provenance
The note above is reproduced unedited from the original post, first published on Threads on 1 October 2026 at 04:40 IST. Sources are the papers and datasets the note draws on.
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