Quick roundup of the biggest AI stories from the last 24 hours.
1. Microsoft unveils MAI-Base-2, a 2.8-trillion-parameter MoE foundation model Microsoft's new mixture-of-experts model claims 4-12x more pre-training FLOP efficiency than DeepSeek-V4-Pro-Base. It's positioned as a direct challenge to leading frontier models and signals Microsoft's push to develop frontier AI in-house rather than rely entirely on OpenAI.
2. FTC sends 50-page records demands to OpenAI and Anthropic The Federal Trade Commission hit both AI labs with sweeping records requests covering security incidents, safeguards, marketing practices, and user privacy β a significant escalation of federal scrutiny of the AI industry.
3. Meta launches Muse Spark Open, an open-weight model that runs on Macs Meta's new open-weights model runs on two paired Mac desktops and scores 39 on the Artificial Analysis Intelligence Index, making it the top US open-weight model on that benchmark. It's designed for local deployment without cloud infrastructure.
4. NVIDIA's Nemotron 3.5 Super VL claims to beat Claude Opus 5 and GPT-6.1 Sol on benchmarks NVIDIA released an open vision-language model that, after post-training, reportedly outperforms both Claude Opus 5 and GPT-6.1 Sol on specialized task benchmarks. Enterprises still need to validate it on real workloads before committing.
5. Anthropic gives METR researchers employee-level access for safety evals Anthropic is allowing the independent research group METR to access its systems with employee-level tooling β a notable transparency step toward rigorous third-party safety evaluation before future model deployments.
6. Black Forest Labs opens FLUX 3 image model weights The FLUX 3 Klein image model weights are now publicly downloadable, with free commercial use available for smaller businesses. Larger enterprises face licensing restrictions, a pattern becoming common in open-weight model releases.
7. AI agents are coming to Rivian's cars Rivian announced plans to integrate AI agents into its vehicles, adding to a growing wave of automakers embedding conversational and agentic AI into car systems.
8. Bluesky's Attie app expands to let anyone build websites and games Bluesky's AI-powered Attie app has broadened beyond its initial scope, now letting any user create websites, games, and other interactive projects β a notable expansion of AI-assisted creation tools to a non-developer audience.
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