Kimi K3 Review

Moonshot's 2.8T-param open frontier model

At a glance

Category: Text & Copy. Pricing: free with paid upgrades available. Last modified: 2026-09-07.

Moonshot AI's most capable model (July 2026): a 2.8-trillion-parameter model built on Kimi Delta Attention and Attention Residuals, with native vision and a 1-million-token context window. The world's first open 3T-class model, tuned for long-horizon coding, knowledge work, and reasoning, with open weights on Hugging Face.

Not editorially tested: One AI Guide has not published a complete hands-on test record for this tool.

Editorial provenance

Published by LUMIVEX for One AI Guide.

Editorial lead: Said El Moussaoui. Our methodology is published at /how-we-rate.

Official vendor website: see the vendor link below.

Strengths

Weaknesses

Best for

Use cases

What is Kimi K3?

Kimi K3 is a text & copy tool. Moonshot's 2.8T-param open frontier model.

How much does Kimi K3 cost?

The One AI Guide catalog currently records Kimi K3 as free with paid upgrades available. This is a directory summary, not a current vendor quote; always check the vendor's site for the latest plans before signing up.

Is Kimi K3 free?

The catalog currently records Kimi K3's pricing model as Freemium. Check the vendor's site for the current free access, limits, and paid-plan terms.

What can I use Kimi K3 for?

Common use cases include Long-horizon coding, Large-repo agentic work, and Deep research.

What is Kimi K3 best at?

The One AI Guide catalog currently highlights these strengths: Open 2.8T frontier model; 1M-token context; Native vision.

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