Chinese AI lab Moonshot AI is back with a new model that it claims will finally make Western frontier models look overpriced. According to the Financial Times, Moonshot's upcoming Kimi K3 is expected to perform on par with or even surpass Anthropic's Opus 4.8. That's right - the open-weight model that may cost you nothing is gunning for the closed-source model that costs you everything.

Moonshot's Kimi K2 models have already been well-received in the open-source AI market, ranking high on benchmarks and demonstrating capabilities not far behind the latest frontier models. Now, Kimi K3 is said to take this one step further, closing the gap with closed-source models from OpenAI and Anthropic. FT reports that Kimi K3 will be the largest open-weight AI model from China, with a parameter count between 2 trillion and 3 trillion, and will be released "in the coming days."

Moonshot is also reportedly raising fresh capital in a round that would value it at $31.5 billion. That's up from a $20 billion valuation in May when it raised $2 billion. Not bad for a company that might be about to make your expensive AI subscriptions look like a waste of money.

The news comes amid a fresh debate on the value of paying AI labs like OpenAI and Anthropic for their expensive, closed-source models. Industry leaders fear that AI labs will somehow manage to extract the data their clients submit for use with their AI products like ChatGPT and Claude. In response, executives are pitching their own products as alternatives or recommending companies take cheaper open-source models - like those developed by DeepSeek, Z.ai, or Moonshot - and train them for their own purposes. Because nothing says "trust us" like a model you can inspect yourself.