SITUATION EXPLAINED: OpenAI and Anthropic were negotiating a legally binding deal to test each other's models. • OpenAI and Anthropic spent part of this year drafting a legally binding deal to stress test each other's models, per The Information • @elonmusk pitched the same idea last week: it was Amazon, not the government, that found the jailbreak in Fable and Mythos, and Andy Jassy called the White House • He wants an informal weekly or biweekly call between lab leaders, and one to two weeks…