Anthropic Forced to Shut Down Fable 5 and Mythos 5 After U.S. Export Order
Imagine launching the most powerful product your company has ever built — and just three days later, being ordered by ...
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Claude Mythos is Anthropic’s most powerful — and most restricted — model. Sitting above Opus in capability, it scored 93.9% on SWE-bench and 97.6% on USAMO math benchmarks. Its advanced cybersecurity capabilities, including autonomous zero-day vulnerability discovery, make it too powerful for open access. Available only to vetted partners via Project Glasswing. Best for: frontier-level cybersecurity research, advanced autonomous reasoning, and tasks where Opus simply isn’t enough.
Imagine launching the most powerful product your company has ever built — and just three days later, being ordered by ...
In April 2026, Anthropic quietly unveiled something extraordinary: an unreleased AI model called Claude Mythos Preview that can find security ...
OpenAI's Latest Models Explained: GPT-5.5, GPT-5.4, and What They Mean for You OpenAI just shipped its biggest architectural overhaul since ...
