A CTO points to the surprising gap between the massive adoption of AI programming assistants and measured productivity gains, which on average remain limited to 10%.
This essay questions a widely documented paradox in 2026: while 92.6% of developers now use AI assistants on a daily basis, the overall productivity gain measured does not exceed 10% on average — well below the initial promises.
The author points out that this average masks a growing gap between teams that have learned to use these tools wisely, observing gains of 2 to 3 times, and those that struggle to reap a real benefit, a gap that continues to widen between advanced developers and laggards.
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