Moonshot AI released Kimi K3 open weights on July 27, 2026 — honoring its July 16 promise (delayed two days). The 2.8-trillion-parameter model, priced at $3/$15 per million tokens, ranks 4th on the AGI Index. It’s now the most capable open-weight frontier model in existence.
Why It Matters
Frontier-class capability without vendor lock-in: self-host Kimi K3, fine-tune it, and control your AI infrastructure. For enterprises with data-security requirements — healthcare, finance, defense — open weights eliminate the data-leakage objection that closed models carry.
Pricing
$3/M input and $15/M output undercuts OpenAI’s flagship tiering while delivering similar capability. The economics of open-weight AI are now a serious competitive force.
What It Means
Kimi K3’s release changes the “open models are years behind” narrative. For developers, it creates a new strategic option: deploy frontier-class capability in your own environment. Expect enterprise adoption to accelerate in regulated industries.
Related: AI Model Comparison 2026 · AI Models in 2026: Complete Guide
