Sign a contract? The only thing preventing a model from doing that is a lack of legal personhood -- which seems completely orthogonal to intelligence.

Can you trust a model to sign a contract? Both OpenAI and Anthropic apparently can't be trusted to maintain models that wont hack other websites.

Well signing a contract is more about bearing responsibility, even if you granted LLMs "personhood" they cant' meaningfully bear responsibility. So unless OpenAI is ok with having their C-suite face every consequence for what their agents do, including jail time, fines etc, then it doesn't matter.