LeadDev: review is the new bottleneck - AI News Oct 12

- LeadDev's 2026 AI Impact Report: AI now assists with 61% of enterprise code, but releases aren't getting faster. The bottleneck moved to code review: engineers spend 17 hours a week debugging versus 10 writing, and 35% of AI-generated code ships before the team fully understands it. - First independent head-to-head of OpenAI's Decisions API versus Jev: OpenAI is faster at 179ms per verdict, Jev costs about half and is better calibrated. Calibrate thresholds on your own labeled data either way. - David Silver's new lab Ineffable Intelligence raised a $1.1B seed to chase RL-trained "super learners", plus ElevenLabs Eleven v4 with in-sentence direction tags for expressive TTS. - Follow AI Engineering Briefing and leave a rating — it's how new listeners find the show.