Hermes 4 405B

Hermes 4 405B is a 405-billion parameter instruction-tuned language model from Nous with a 131K token context window.

Strengths

The model handles complex reasoning, multi-turn conversations, and agentic workflows at scale, with the parameter count and context size to track long instruction chains and large documents.

Best for

Tasks requiring sustained reasoning over long contexts, multi-step workflows, and applications where model capacity is a limiting factor.

Limitations

The 405B parameter count makes it slower and more resource-intensive than the smaller 70B variant released in the same generation.