- OpenAI ships GPT-5.5: what actually changes for builders
The model is faster, cheaper per token, and finally usable for long-running agent loops. Here's what the launch post buries — and what it means for anyone shipping production AI.
- Llama 4 405B is out: open weights at frontier-adjacent quality
Meta released Llama 4 with weights you can actually run. The 405B variant is GPT-5-class on most evals, the 70B is shockingly good, and the licensing terms have one important catch.
- Cursor agent mode goes GA — what it does, what it doesn't
Cursor's agent mode left preview this week. After two days of using it on real codebases: it's faster than the demo suggested, dumber than the marketing implies, and worth turning on.
- Anthropic raises Series F at $250B — the structure tells the real story
The headline is the valuation. The interesting part is who funded what, and how the round is split between equity and pre-paid compute.
- Google ships Gemini 3 with native tool use — quietly
Gemini 3 lands without the usual launch theatrics. The interesting story isn't the eval scores — it's that tool calling is now a first-class part of the model, not a wrapper bolted on top.
