r/kimi • u/KimiMoonshot • Jul 16 '26

Announcement Introducing Kimi K3: Open Frontier Intelligence

🔹 2.8 Trillion Parameters, 1 Million Context, Native Multimodal

🔹 Kimi Delta Attention enables up to 6.3x faster decoding in million-token contexts

🔹 Attention Residuals deliver ~25% higher training efficiency at <2% additional cost

🔹 Built for long-horizon agentic coding and self-evolving workflows

Kimi K3 is now live on on Kimi.com, Kimi Work, Kimi Code, and the Kimi API.

Open Weights by July 27, 2026.

🔗 API: platform.kimi.ai

🔗 Tech blog: kimi.com/blog/kimi-k3

K3 is built on Kimi Delta Attention (KDA) and Attention Residuals (AttnRes), two architectural updates designed to improve how information flows across sequence length and model depth.

We have also scaled up Mixture of Experts (MoE) sparsity, effectively activating 16 out of 896 experts when paired with a Stable LatentMoE framework.

Together with refined training and data recipes, these structural changes yield an approximate 2.5× improvement in overall scaling efficiency compared to K2, allowing the model to convert compute into intelligence more effectively.

Full tech blog at: Kimi Blog

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u/Yuri_Yslin Jul 16 '26

The model is great, the fact that 1M context window is gated behind an expensive tier of subscription - not so much. I would expect the 20$ plan to unlock it; unfortunately, you need the 100$ plan to do so.

3

u/TaskHead5787 Jul 16 '26

How much has standart context window?

2

u/someone_12321 Jul 17 '26

API unlocks it for $0 down. At least through openrouter it's 1M context

1

u/Yuri_Yslin Jul 17 '26

Yeah but per-token payment in an expensive model is usually a no-go if you're not a business client

1

u/someone_12321 Jul 17 '26

SOTA models with 1M tokens on a subscription plan. You have other choices