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Moonshot AI launches Kimi K3, its largest open-source AI model yet
🇵🇾 Paraguay /Technology

Moonshot AI launches Kimi K3, its largest open-source AI model yet

From ABC Color · () Spanish

Translated from Spanish, summarized and contextualized by DistantNews.

At a glance

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  • Chinese startup Moonshot AI launched Kimi K3, the largest open-source AI model to date with 2.8 trillion parameters.
  • The model reportedly outperforms several competitors in various tests, intensifying the tech race between China and the U.S.
  • While Kimi K3's overall performance lags behind proprietary models like GPT-5.6 Sol, it ranked first in six out of seven categories on the AI model evaluation platform Arena.AI.

Moonshot AI, a Chinese startup, has unveiled Kimi K3, claiming it is the largest open-source artificial intelligence model ever created. With an astonishing 2.8 trillion parameters, the model aims to advance the technological competition between China and the United States.

Kimi K3 is the largest open-source artificial intelligence model to date.

— Moonshot AIAnnouncing the launch of Kimi K3.

The company stated that Kimi K3 is designed for long-range programming, intellectual work, and reasoning tasks. It is already accessible through the Kimi chatbot, the Kimi Work application, the Kimi Code tool, and its API. A full release of its weights is anticipated by July 27.

Moonshot AI acknowledged that Kimi K3's overall performance is not yet on par with the most advanced proprietary models, such as OpenAI's GPT-5.6 Sol and Anthropic's Claude Fable 5. However, the company asserts that Kimi K3 consistently surpassed other analyzed open-source models. In evaluations by the AI model assessment platform Arena.AI, Kimi K3 secured the top position in six out of seven categories, including brand and marketing, reference-based design, data and analysis, consumer products, simulations, and content creation tools. It achieved second place only in the video game category, behind Fable 5.

Kimi K3 is oriented towards long-range programming, intellectual work, and reasoning.

— Moonshot AIDescribing the capabilities of the new AI model.

Consultancy Artificial Analysis has placed Kimi K3 at a level comparable to Claude Opus 4.8 and GPT-5.5, considered the second-best models from Anthropic and OpenAI, respectively. The firm also noted that the performance improvements of K3 come with an increased price of $15 per million tokens.

The overall performance of K3 is still behind the most powerful proprietary models.

— Moonshot AIAcknowledging limitations compared to leading commercial AI systems.
DistantNews Editorial

Originally published by ABC Color in Spanish. Translated, summarized, and contextualized by our editorial team with added local perspective. Read our editorial standards.

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