AI Knowledge · Kimi Guide
Kimi K3 by Moonshot AI:
The Business Guide
Kimi K3 is the first open model from China to break into the top tier of AI systems. This guide answers the questions founders and teams are asking now: how good is the model really, what does it cost, what does the China location mean for data protection, and when is it worth looking beyond Claude and ChatGPT. Benchmarks and prices on this page update automatically every day.
What is Kimi K3?
Kimi K3 is the flagship model of Moonshot AI, an AI company from Beijing founded in 2023 and backed among others by Alibaba. In China, the Kimi chatbot has been one of the most used AI assistants for years. Internationally, Moonshot built its reputation with the open K series, whose model weights are freely available. On July 16, 2026, Moonshot introduced Kimi K3. The technical cornerstones:
- Mixture-of-experts architecture with roughly 2.8 trillion parameters, the largest open model to date.
- A one-million-token context window: entire contract sets, reports, or codebases in a single pass.
- An always-on thinking mode: the model reasons before every answer.
- Multimodal: Kimi K3 natively understands text, images, and video.
- Open weights: Moonshot has announced the release of the model weights for late July 2026; after that, the model can be operated outside China.
For companies, that last property is the most interesting one: a model at the level of the Western frontier class that can in principle run on your own or European infrastructure changes your negotiating position with every AI vendor.
How good is Kimi K3? Today's numbers
Vendor claims age quickly, so the numbers on this page do not come from a press release. We pull them daily from the independent measurements by Artificial Analysis and convert prices to euros using the ECB reference rate. In the current field, Kimi K3 ranks number 7 among the frontier models we track every day.
| Model | Vendor | Intelligence index | Price per 1M tokens | Open weights |
|---|---|---|---|---|
| Kimi K3 | Kimi | 57 | €5.27 | Yes |
| Kimi K2.6 | Kimi | 44 | €1.50 | Yes |
| Claude Opus 5 | Anthropic | 61 | €8.79 | No |
| GPT-5.6 Sol | OpenAI | 59 | €9.89 | No |
As of July 27, 2026 · Source: Artificial Analysis (intelligence index, blended input/output price) and the ECB reference rate. This table updates automatically every day.
How Kimi K3 stacks up against every other system, sorted by use case, budget, and data protection, is shown in our daily updated AI Leaderboard; the methodology behind it is documented here.
Data protection and GDPR: the China factor
This is where testing and production part ways. If you use Kimi K3 via kimi.com or the Moonshot API, your data is processed in China, a country without an EU adequacy decision. That is fine for low-stakes experiments; for personal data, customer data, or trade secrets, this path is hard to justify under GDPR.
The open weights flip the picture: as soon as Kimi K3 runs with a European hosting provider or on your own infrastructure, your data never leaves the EU and Moonshot sees not a single prompt. The China risk turns into a sovereignty advantage that closed models cannot offer. Your homework stays the same as with every AI tool: classify data categories, extend your records of processing activities, and give the team clear rules about which data may go into which system.
Open weights and self-hosting: what is realistic
Moonshot has announced the free release of the Kimi K3 weights for late July 2026. After that, anyone can download and run the model in principle. Reality for mid-sized companies is more nuanced: a model with 2.8 trillion parameters needs a multi-GPU cluster even in compressed form, not a single workstation.
- European inference providers: the most practical route. Providers with EU data centers typically add open models shortly after release; you pay per token and the data stays in Europe.
- Quantized variants: shrunk versions of the model run on much smaller hardware, with a measurable but often acceptable quality trade-off.
- Kimi K2.6 as the entry point: the smaller open sibling model is available today and more than sufficient for many automation tasks.
With the weights release, our magazine publishes the hands-on self-hosting guide for Kimi K3, covering hardware reality, provider options, and the GDPR assessment. This page will link it right here automatically.
Frequently asked questions about Kimi K3
What is Kimi K3?
Kimi K3 is the flagship model that the Chinese AI company Moonshot AI introduced in July 2026. It is a mixture-of-experts model with roughly 2.8 trillion parameters, a context window of one million tokens, and an always-on thinking mode. The remarkable part: Moonshot publishes the model weights openly, which makes Kimi K3 the first open model that plays at the level of the leading Western frontier models in independent benchmarks.
How good is Kimi K3 compared to Claude and ChatGPT?
In independent measurements by Artificial Analysis, Kimi K3 sits close behind the best models from Anthropic and OpenAI and beats many established closed models. The exact numbers change constantly; the table on this page and our AI Leaderboard show the current standing, both updated automatically every day.
What does Kimi K3 cost?
The official Moonshot API bills by the amount of text processed (tokens), at prices clearly below comparably strong Western models. Since API prices change frequently, the table on this page shows the daily updated blended price. After the weights release, a second cost logic applies: your own infrastructure or a European hosting provider instead of API billing.
Can Kimi K3 be used in a GDPR-compliant way?
When you use kimi.com or the Moonshot API, your data is processed in China, a country without an EU adequacy decision. That path is hard to justify for personal data or confidential business information. The realistic GDPR route runs through the open weights: run Kimi K3 with a European provider or on your own infrastructure, and your data never leaves the EU. Run that assessment before any production rollout.
Can I self-host Kimi K3?
In principle yes, that is the core of the open-weights promise. In practice a model of this size needs a multi-GPU cluster that very few companies have in the basement. Three realistic paths: European inference providers that offer the model fully hosted, quantized (shrunk) variants for smaller hardware, or the smaller open sibling model Kimi K2.6. Our hands-on guide arrives with the weights release.
What is Moonshot AI?
Moonshot AI is an AI company from Beijing founded in 2023, backed among others by Alibaba. It became famous for the Kimi chatbot, one of the most used AI assistants in China. With its open K series (K2, K2.6, and now K3), Moonshot has built an international reputation and, alongside DeepSeek, is considered the most important driver of open frontier models from China.
Deep dives in our magazine
Our editorial team tracks the model market continuously. The most relevant pieces (in German):
The right model strategy, without detours
We run AI models in production every day and measure daily which system leads where. If you want to know whether Kimi K3, Claude, or a combination is the right choice for your company, we build the system for you: model choice, data protection setup, routing, and a team that can work with it. Get in touch.
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