# Moonshot AI Releases Kimi K3, World's Largest Open-Source AI Model at 2.8 Trillion Parameters

> Moonshot AI has released Kimi K3, which it says is the largest open-weight AI model to date at 2.8 trillion parameters. Announced on July 16 and freely downloadable, the model ships with a 1 million token context window and, by Moonshot's numbers, outperforms most rivals on coding and agentic benchmarks, trailing only the very top closed models. The pricing is the part that should make competitors nervous. API access starts around 3 dollars per million input tokens, dramatically undercutting frontier Western models while offering comparable results on many tasks. For anyone building on top of AI, a capable open model at that price changes the math of what is worth paying for. It also underlines how much of the open-source frontier now comes out of Chinese labs. A 2.8 trillion parameter model that anyone can download and run locally, rather than rent through a single vendor, shifts leverage toward developers and away from the handful of companies that guard their weights.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: Tom's Hardware · Published Monday, August 31, 2026_

## Wortins' read

Moonshot AI has released Kimi K3, which it says is the largest open-weight AI model to date at 2.8 trillion parameters. Announced on July 16 and freely downloadable, the model ships with a 1 million token context window and, by Moonshot's numbers, outperforms most rivals on coding and agentic benchmarks, trailing only the very top closed models. The pricing is the part that should make competitors nervous. API access starts around 3 dollars per million input tokens, dramatically undercutting frontier Western models while offering comparable results on many tasks. For anyone building on top of AI, a capable open model at that price changes the math of what is worth paying for. It also underlines how much of the open-source frontier now comes out of Chinese labs. A 2.8 trillion parameter model that anyone can download and run locally, rather than rent through a single vendor, shifts leverage toward developers and away from the handful of companies that guard their weights.

## Source

[Read the full story at Tom's Hardware](https://www.tomshardware.com/tech-industry/artificial-intelligence/moonshot-releases-2-8-trillion-parameter-kimi-k3)

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