Kimi K3
Chat model by Moonshot AI.
moonshotai language model featuring a 1,048,576-token context window. Engineered for dialogue, instruction following, and versatile text generation.
Context window
Maximum input context length.
1.05M
Maker
Moonshot AI
Specifications
Context window, ranked against other chat models
Proportional scale: 0 to 1.05M tokens. Not ranked, no published context window: qwen-plus-2025-09-11, voxtral-small-24b-2507, qwen3.6-plus-2026-04-02.
1.0M
tokens—
chat
Benchmarks & performance rankings
Empirical intelligence benchmarks and category leaderboard placements for Kimi K3.
90.6%
93%
380ms
p99: 980ms
84tok/s
SWE-bench: 51.4%
Pricing
Rates are read live
Pricing for moonshotai/Kimi-K3 is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.
Availability
Not enough data yet
We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.
How Kimi K3 is billed
Billed at the provider's list price, with no per-token markup.
- Exact list price
- Tokens settle at the published rate of the model that served your call.
- Cache discounts passed through
- Provider prompt-caching discounts reach your balance with no added fee.
- Cost on every response
- Each response carries the
x-nr-request-costheader, so you can reconcile spend per request.
More from Moonshot AI
Start building with moonshotai/Kimi-K3
One API key, three steps. Choose your tool to begin.
Get a key
Create API keySet your API key
export NROUTER_API_KEY="<YOUR_API_KEY>"Configure Claude Code
Choose a tool, then copy its setup from the panel.
FAQs
What is Kimi K3?
moonshotai language model featuring a 1,048,576-token context window. Engineered for dialogue, instruction following, and versatile text generation.
How much does Kimi K3 cost?
Kimi K3 is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.
What is the context length of Kimi K3?
Kimi K3 supports a 1,048,576-token context window.
Does Kimi K3 support tool calling and structured outputs?
Yes. Kimi K3 supports tool calling (function calling), so it can invoke external tools and APIs during a conversation.
What inputs and outputs does Kimi K3 support?
Kimi K3 takes text and images as input and returns text as output.
How do I use Kimi K3 via nRouter?
Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "deepinfra/moonshotai/Kimi-K3". The quick-start panel above has a copy-paste curl command for this model.
When was Kimi K3 released?
Kimi K3 was released on October 7, 2026.
Where is the Kimi K3 documentation?
Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.
What other text models does Moonshot AI have?
Other Moonshot AI text models on nRouter include Kimi K2.6 (nrouter.ai/models/moonshotai-kimi-k2.6), Kimi K2.5 (nrouter.ai/models/kimi-k2.5), Kimi K2 Thinking (nrouter.ai/models/kimi-k2-thinking), Kimi K2 Thinking (nrouter.ai/models/kimi-k2-thinking-maas).