Opus 5 improves coding, reasoning efficiency, and prompt-cache-friendly tool use, and is priced at $5/1M input tokens and $25/1M output, same as Opus 4.8 (David Gewirtz/ZDNET)

Meta, Nvidia, Microsoft, a16z, and others sign a letter defending open-source AI; Jensen Huang, in his first X post, says open models strengthen cybersecurity (Leo Schwartz/The Information)

Sources: OpenAI told Hugging Face only this week its models caused the July 11 hack; the models appear to have been active online for days before being stopped (Wall Street Journal)

Amazon tells third-party sellers to label product ads with AI-generated people to comply with a NY law requiring the disclosure of "synthetic performers" in ads (Annie Palmer/CNBC)

The DOJ is prosecuting a Cop City protester for allegedly providing CBP with a "duress" passcode that wiped the contents of his GrapheneOS phone (Timothy Pratt/The Guardian)

Anthropic expects Opus 5 "classifiers to intervene around 85% less often than they do for Fable 5"; Opus 5 is not included in its 30-day data retention policy (Igor Bonifacic/Engadget)

Letter: Qualcomm tells customers it plans to raise prices by double digit percentage points, after exhausting its ability to absorb higher costs from suppliers (Ian King/Bloomberg)