Jack Dorsey 正在以 Buzz 挑战 Slack，这是一款面向团队及其 AI 代理的群聊平台：https://techcrunch.com/2026/07/21/jack-dorsey-is-taking-on-slack-with-buzz-a-group-chat-platform-for-teams-and-their-ai-agents/ Amanda Silberling：https://techcrunch.com/author/amanda-silberling/
据 Have I Been Pwned 报道，AI 音乐生成器 Suno 数据泄露影响 5500 万用户：https://techcrunch.com/2026/07/21/ai-music-generator-suno-breach-affects-55m-users-per-have-i-been-pwned/ Zack Whittaker：https://techcrunch.com/author/zack-whittaker/
谷歌正在开发一款新的 AI 芯片，以提高 Gemini 的效率：https://techcrunch.com/2026/07/20/google-is-working-on-a-new-ai-chip-designed-to-make-gemini-more-efficient/ Lucas Ropek：https://techcrunch.com/author/lucas-ropek/
法官暂停了价值 1100 亿美元的 Paramount 与 Warner Bros. 合并案：https://techcrunch.com/2026/07/20/judge-pauses-110b-paramount-warner-bros-merger/ Aisha Malik：https://techcrunch.com/author/aisha-malik/
Chris Fall, the director of the Center for AI Standards and Innovation (CAISI), has resigned, the agency confirmed：https://www.cnbc.com/2026/07/20/trumps-head-of-ai-safety-agency-caisi-resigns-after-months-on-job.html to multiple news outlets.
He was appointed just three months ago after the last appointee, Collin Burns, left in less than a week, The Washington Post reported：https://archive.ph/FoRO3#selection-433.0-433.60 at the time. Burns was reportedly “pushed out” of the job in April because he previously worked for Anthropic and the Trump administration had been battling with the company, sources told the Post.
No reason was given for Fall’s departure. Prior to leading CAISI, Fall was the director of the Department of Energy’s Office of Science during the first Trump administration and had been the acting director of the DOE’s Advanced Research Projects Agency-Energy. He worked in the DOE’s Office of Naval Research (ONR) prior to that.
Before Burns and Fall, the agency was led by venture capitalist David Sacks, whose title at the time was White House AI and crypto czar. Sacks stepped down in March.
CAISI, which operates under the National Institute of Standards and Technology (NIST), is the primary organization for developing technical standards and testing methods for AI models as well as assessing cybersecurity risks. Yet it was not the agency at the center of the most recent model-risk brouhaha.
That occurred in June when the U.S. Commerce Department invoked an obscure export control directive that effectively forced Anthropic to pull its Mythos and Fable models from the market. The ban was lifted by the end of the month：https://techcrunch.com/2026/06/30/trump-drops-restrictions-on-anthropics-mythos-and-fable-models/, when Secretary of Commerce Howard Lutnick said he was satisfied with Anthropic’s safety plans.
Earlier this month, the White House also signed an executive order：https://www.whitehouse.gov/releases/2026/07/white-house-launches-gold-eagle-initiative-for-unprecedented-cybersecurity-vulnerability-coordination/ for a new AI safety oversight program called “Gold Eagle” that creates a clearinghouse for cybersecurity vulnerability coordination. A host of federal organizations were named as part of the program, including the Commerce Department and Department of Homeland Security. But, as CNBC pointed out, CAISI was not among the federal organizations mentioned.
Meanwhile, after Anthropic’s models were freed from the ban, Google DeepMind CEO Demis Hassabis began calling for the creation of an independent, industry-run standards body：https://techcrunch.com/2026/07/14/deepmind-ceo-calls-for-an-independent-standards-body-to-regulate-frontier-ai/ to regulate frontier AI modeled after FINRA — the same sort of mission that CAISI was formed to tackle.
Fall’s resignation also follows this weekend’s handwringing over Chinese AI lab Moonshot’s：https://techcrunch.com/2026/07/18/kimi-threat-or-menace/ new version of its open model Kimi, which performed competitively against flagship frontier models. The administration was weighing efforts to somehow ban Chinese open models, Axios reported：https://www.axios.com/2026/07/20/ai-us-china-open-source-kimi. This sparked immediate debate and outrage over the weekend, including from Sacks：https://x.com/DavidSacks/status/2078826291638522127, who argued that regulations shouldn’t be used as a protectionism strategy for U.S. proprietary AI labs.
While CAISI has released a few reports on the capabilities of Chinese open-weight models Z.ai’s GLM-5.2 and DeepSeek V4 Pro, it hasn’t talked much about its processes for testing. (Open weight means these models can be publicly downloaded and run locally, but its training code and datasets are not available.) Since July 9, TechCrunch has sent multiple inquiries to both the DOC and NIST about how its LLM evaluations work and has not received a response.
When you purchase through links in our articles, we may earn a small commission：https://techcrunch.com/techcrunch-affiliate-monetization-standards/. This doesn’t affect our editorial independence.
Scale faster. Grow your portfolio. Gain practical expertise. No matter your goal, Disrupt can empower you. Save up to $330 toda y!
Jack Dorsey is taking on Slack with Buzz, a group chat platform for teams and their AI agents：https://techcrunch.com/2026/07/21/jack-dorsey-is-taking-on-slack-with-buzz-a-group-chat-platform-for-teams-and-their-ai-agents/ Amanda Silberling：https://techcrunch.com/author/amanda-silberling/
Light made a flip phone — it’s colorful and it’s cheap：https://techcrunch.com/2026/07/21/light-is-modernizing-the-flip-phone-with-light-flip/ Amanda Silberling：https://techcrunch.com/author/amanda-silberling/
AI music generator Suno breach affects 55M users, per Have I Been Pwned：https://techcrunch.com/2026/07/21/ai-music-generator-suno-breach-affects-55m-users-per-have-i-been-pwned/ Zack Whittaker：https://techcrunch.com/author/zack-whittaker/
Google is working on a new AI chip designed to make Gemini more efficient：https://techcrunch.com/2026/07/20/google-is-working-on-a-new-ai-chip-designed-to-make-gemini-more-efficient/ Lucas Ropek：https://techcrunch.com/author/lucas-ropek/
Coca-Cola suspended production at its Fairlife dairy after a ransomware attack：https://techcrunch.com/2026/07/16/coca-cola-suspended-production-at-its-fairlife-dairy-after-a-ransomware-attack/ Zack Whittaker：https://techcrunch.com/author/zack-whittaker/
扫码直达文章详情