There are three restrictions:

> No use of OpenAI technology for mass domestic surveillance.

> No use of OpenAI technology to direct autonomous weapons systems.

> No use of OpenAI technology for high-stakes automated decisions (e.g. systems such as “social credit”).

These are stronger than Anthropic's restrictions (https://www.anthropic.com/news/statement-department-of-war), as OpenAI says themselves: "We think our agreement has more guardrails than any previous agreement for classified AI deployments, including Anthropic’s. [...] Based on what we know, we believe our contract provides better guarantees and more responsible safeguards than earlier agreements, including Anthropic’s original contract."

Edit: I was wrong, see my original comment. Sorry.