A CMS misconfiguration exposed ~3,000 unpublished Anthropic files, revealing Claude Mythos — a new model tier above Opus called "Capybara" with "dramatically higher scores" on coding and cybersecurity. It scores 77.8% on SWE-Bench Pro, 20 points above Claude Opus 4.6. Here's what the leak revealed.
Xiaomi's MiMo-V2-Pro launched anonymously as "Hunter Alpha" on OpenRouter, and the AI community assumed it was DeepSeek V4. It wasn't. It's a 1T-parameter MoE model with 42B active params that approaches Claude Opus 4.6 on coding at 1/5th the cost. Full review of both Pro and Flash variants.
Mistral AI shipped 6 products in March 2026 alone — Small 4, Voxtral TTS, Leanstral, Forge, Spaces CLI, and an NVIDIA partnership. Here's every model, benchmark, and pricing detail verified from primary sources.
