Field notes

Blog — Page 61

Engineering notes, case studies, and lessons from the field.

OpenAI Codex Hits 1.6M Weekly Users — Launches Dedicated Security Vulnerability Agent
Developer Productivity

OpenAI Codex Hits 1.6M Weekly Users — Launches Dedicated Security Vulnerability Agent

OpenAI reports Codex crossed 1.6M weekly active users with enterprise deployments at Cisco, NVIDIA, and Ramp. A new Codex Security agent identifies, validates, and proposes fixes for vulnerabilities.

Mar 16, 20265 min read
30+ OpenAI and Google Employees Back Anthropic in Pentagon AI Ethics Lawsuit
AI Policy

30+ OpenAI and Google Employees Back Anthropic in Pentagon AI Ethics Lawsuit

Over 30 employees from OpenAI and Google DeepMind — including Chief Scientist Jeff Dean — filed an amicus brief defending Anthropic after the DOD blacklisted the company for refusing military surveillance use cases.

Mar 15, 20265 min read
Commerce Dept. Targets State AI Laws — Ties Compliance to $42B in Federal Funding
AI Policy

Commerce Dept. Targets State AI Laws — Ties Compliance to $42B in Federal Funding

The Trump administration's March 11 report identifies state AI laws it deems 'onerous,' and now uses $42B in BEAD broadband funding as leverage to push states to align with federal policy.

Mar 15, 20265 min read
Google's Gemini 3.1 Flash-Lite Is the Cheapest Capable Multimodal Model Yet
AI Models

Google's Gemini 3.1 Flash-Lite Is the Cheapest Capable Multimodal Model Yet

Google released Gemini 3.1 Flash-Lite at $0.25/M tokens — 2.5x faster than its predecessor, with a 1M context window. It outperforms GPT-5 mini and Claude 4.5 Haiku on most benchmarks.

Mar 15, 20265 min read
GPT-5.4 Ships With Native Computer Use — Agents Can Now Control Full Desktops
AI Models

GPT-5.4 Ships With Native Computer Use — Agents Can Now Control Full Desktops

OpenAI released GPT-5.4 with built-in computer-use capabilities, letting agents operate desktop environments autonomously. It's the first general-purpose frontier model to ship this natively.

Mar 15, 20266 min read

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