Over 75% of DeepMind production code is AI-written; fully delegated PRs rise to 11.9%
HaydnBelfield · x · 2026-10-14
Part 5/9 of DeepMind's report thread quantifies internal AI-written code:
- Most production code (>75%) at Google DeepMind is now AI-written.
- The share of PRs with >98% AI-written code is rising steadily; fully delegated PRs grew from 7.5% to 11.9%.
- However, 88% of PRs still require multi-turn human steering or human authorship, and all changes remain subject to human review before submission.
The attached chart (Figure 3.15) shows PR AI-code share distributions shifting toward high-AI buckets month over month from April to September 2026.
Related event: Google launches Gemini 4 Argon with 217-page safety report(22 posts)→
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