The 10 most important AI stories of March 18, 2026, hand-curated from the day's coverage. Every story links to its primary source.
Anthropic is now capturing over 73% of all spending among companies buying AI tools for the first time, according to customer data from Ramp, up from a 50/50 split with OpenAI in January.
The Pentagon is discussing plans to set up secure environments for generative AI companies to train military-specific versions of their models on classified data. AI models like Anthropic's Claude are already used in classified settings; applications include analyzing targets in Iran.
Latent Health is tapping into the $200 billion market for specialty drugs with AI agents that help doctors convince insurers to more quickly approve drugs and treatments people need.
Rift deepens as OpenAI tests limits of Microsoft's exclusive rights to host its models. Microsoft is threatening to sue over the Amazon $50B investment and cloud-expansion deal.
Chinese AI stocks surged on Wednesday following upbeat remarks from Nvidia's chief executive Jensen Huang on the promise of AI agents and OpenClaw.
Nvidia has a structured data enablement strategy. Nvidia provides libraries, software and hardware to index and search data faster. Indexing and retrievals are 10-40x faster in most cases, part of the GTC 2026 Ground Truth pipeline.
Xbow, a startup that builds AI software to probe applications for security vulnerabilities, has raised a new round of funding that values it at more than $1 billion.
Mistral's sovereign AI stack, investment in data center capacity and open-weight frontier models provide CIOs with an alternative to U.S. proprietary AI models.
Several tech companies, including OpenAI, are encouraging the DOD behind the scenes to back away from designating Anthropic a supply-chain risk, according to the New York Times. Tech companies have been reluctant to directly confront the administration over the contract feud.
The UK government has backtracked on its proposal to let AI companies train on copyrighted works unless creators opt out, after backlash from artists including Dua Lipa. The government stated it must take time to get the policy right.
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