Claude Fable 5 vs GPT 5.5: Is this why the Trump admin banned one and not the other? (opens in new tab)  🧠LLMs  Content type: News

Here's how Anthropic and OpenAI's most powerful AI models stack up. Earlier this week, Anthropic released its most powerful public model yet: Claude Fable 5. This model is the "safe" version of an even more powerful model, Mythos, that Anthropic has yet to release to the public due to potential …