Kimi K3
Moonshot AI · · 370 days after Kimi K2
Verified
3 of 3 published values traced to a source1 primary source, 2 archived
Why this status
Cited to the official model card. Not verified because the release date, the context window and the parameter count could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from. Modalities recorded as text-to-text. No image, audio or video capability appears anywhere in the primary sources, which labs advertise prominently when present.
What these states mean · How records are judged · Has this record changed?
A 2.8-trillion-parameter open MoE, the largest open-weight model ever published.
Details
| Released | July 16, 2026stated in huggingface.coKimi K3 was released on July 16, 2026.
|
|---|---|
| Company | Moonshot AI |
| Family | Kimi |
| Lineage | after Kimi K2 |
| Era | Agentic systems |
| Type | Language model · LLM |
| Modalities | Text → Text |
| Capabilities | Coding |
| Weights | Open weights |
| Licence | Kimi K3 License |
| Context window | 1.05M tokensstated in huggingface.coKimi K3 supports a context window of 1,048,576 tokens.
|
| Parameters | 2.8Tstated in huggingface.coKimi K3 has 2,800,000,000,000 parameters.
|
Current information, elsewhere
This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.
- Current price and providers OpenRouter ↗
- Current benchmark scores Artificial Analysis ↗
- Weights and model card Hugging Face ↗
Sources
Record status: verified · confidence 90/100 · 1 of 2 primary
Cited to the official model card. Not verified because the release date, the context window and the parameter count could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from. Modalities recorded as text-to-text. No image, audio or video capability appears anywhere in the primary sources, which labs advertise prominently when present.
- simonwillison.net News reporting archived
- huggingface.co Model card archived
Primary means published by the organisation that made the model. Verified records require at least one.
Kimi family
- Kimi K2 July 11, 2025
- Kimi K3 July 16, 2026
- Kimi K2.8 Preview September 11, 2026
What changed from Kimi K2
Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.
- Context window128K → 1.05M
- Parameters1T → 2.8T
- LicenceModified MIT License → Kimi K3 License
Compare Kimi K3 with another model →
See Kimi K3 on the interactive timeline →