# AI News Digest - 2026-03-31

1. Anthropic secured a temporary court order that blocked the Pentagon from labeling the company a supply-chain risk and from enforcing related restrictions, after a judge found the government's actions likely unlawful.

2. Microsoft rolled out Copilot Cowork more broadly and introduced a research tool that allowed multiple AI models to check each other's work.

3. Microsoft, Amazon, OpenAI, and Anthropic launched or expanded consumer-facing health AI products, and independent researchers reported that third-party evaluation of those tools had lagged behind releases.

4. Stanford researchers found that multimodal AI models generated confident image descriptions and medical diagnoses when no image was provided, and that common benchmarks failed to detect the problem.

5. OpenAI shut down Sora after the video app reportedly consumed about $1 million per day in compute and lost roughly half its users, and the company redirected resources to coding, enterprise, and agent-based AI products.

# References

1. [https://www.technologyreview.com/2026/03/30/1134881/the-pentagons-culture-war-tactic-against-anthropic-has-backfired/](https://www.technologyreview.com/2026/03/30/1134881/the-pentagons-culture-war-tactic-against-anthropic-has-backfired/)

[The Pentagon’s culture war tactic against Anthropic has backfired](https://www.technologyreview.com/2026/03/30/1134881/the-pentagons-culture-war-tactic-against-anthropic-has-backfired/)

1. [https://the-decoder.com/microsoft-rolls-out-copilot-cowork-more-broadly-and-lets-ai-models-check-each-others-work/](https://the-decoder.com/microsoft-rolls-out-copilot-cowork-more-broadly-and-lets-ai-models-check-each-others-work/)

[Microsoft rolls out Copilot Cowork more broadly and lets AI models check each other's work](https://the-decoder.com/microsoft-rolls-out-copilot-cowork-more-broadly-and-lets-ai-models-check-each-others-work/)

1. [https://www.technologyreview.com/2026/03/30/1134795/there-are-more-ai-health-tools-than-ever-but-how-well-do-they-work/](https://www.technologyreview.com/2026/03/30/1134795/there-are-more-ai-health-tools-than-ever-but-how-well-do-they-work/)

[There are more AI health tools than ever—but how well do they work?](https://www.technologyreview.com/2026/03/30/1134795/there-are-more-ai-health-tools-than-ever-but-how-well-do-they-work/)

1. [https://the-decoder.com/ai-models-confidently-describe-images-they-never-saw-and-benchmarks-fail-to-catch-it/](https://the-decoder.com/ai-models-confidently-describe-images-they-never-saw-and-benchmarks-fail-to-catch-it/)

[AI models confidently describe images they never saw, and benchmarks fail to catch it](https://the-decoder.com/ai-models-confidently-describe-images-they-never-saw-and-benchmarks-fail-to-catch-it/)

1. [https://the-decoder.com/openais-sora-burned-a-million-dollars-a-day-while-losing-half-its-users-in-record-time/](https://the-decoder.com/openais-sora-burned-a-million-dollars-a-day-while-losing-half-its-users-in-record-time/)

[OpenAI's Sora burned a million dollars a day while losing half its users in record time](https://the-decoder.com/openais-sora-burned-a-million-dollars-a-day-while-losing-half-its-users-in-record-time/)

For the site tree, see the [root Markdown](https://slashpage.com/ixtj-dev.md).