Key Info

Mistral AI's new flagship Mistral Large 4 (nicknamed "Le Chonk") is available in public preview on OpenRouter as mistralai/mistral-large-4-0, a 1T-parameter model with 49B active parameters.

Highlights

  • 1T total parameters with 49B active, natively multimodal
  • 1M context window and up to 256K output tokens
  • 50% launch discount for the first two weeks: $0.68 per 1M input tokens, $2.09 per 1M output tokens, $0.07 cached input
  • Described by Mistral as the best open weights model from the US or Europe on aggregated benchmarks, with SOTA results on cyber defense, manufacturing and finance workloads