Sanders cited reports of unexpected model behavior, potential biological applications of AI and previous safety commitments made by the companies as grounds for slowing development. Pause AI development," Sanders wrote. Sanders based part of his argument on previous safety commitments from OpenAI, Anthropic and Meta. OpenAI recently slowed the release of its latest model, Astra, while OpenAI, Anthropic and Meta have reported instances of AI systems displaying unexpected or potentially dangerous behavior, according to Axios. For OpenAI, Anthropic and Meta, voluntarily pausing development would carry significant competitive consequences.