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Kimi K3 pricing and routing profile

Kimi K3 from Moonshot AI lists at $3.00 per million input tokens and $15.00 per million output tokens, with a 1,048,576-token context window. Prices from OpenRouter's catalogue on 2026-09-28.

Input, per 1M tokens$3.00
Output, per 1M tokens$15.00
Cached input, per 1M$0.30
Context window1.05M
Confidence signalAvailable

Tool callingStructured outputReasoning controlLog probabilities

Cost per 1,000 requests

Request shapeList cost
Classification or routing (600 tokens in, 10 out)$1.95
Chat reply (2,000 in, 400 out)$12.00
Retrieval-augmented answer (8,000 in, 500 out)$31.50

Before prompt caching. Try your own shape in the cost calculator.

Can Gimbix route to it first?

Yes. 9 of 19 tracked hosts return token log probabilities for Kimi K3, which is the confidence signal Gimbix uses to let a cheaper model answer first.

Who serves Kimi K3

HostInput / output per 1MLog probabilitiesUptime, last 30 min
InferenceNet$1.00 / $9.00no99.9%
Wafer$1.00 / $9.00no100.0%
Sail Research$1.03 / $9.04yes99.9%
Morph$1.50 / $10.50yes100.0%
Makora$2.04 / $12.75yes100.0%
Relace$2.10 / $10.50no99.8%
Phala$2.55 / $12.75yes100.0%
DigitalOcean$2.55 / $12.95yes—
DeepInfra$2.85 / $14.25no99.8%
Chutes$3.00 / $15.00no—
Parasail$3.00 / $15.00yes98.9%
Modal$3.00 / $15.00no99.9%
Together$3.00 / $15.00no99.6%
Fireworks$3.00 / $15.00yes99.5%
BaseTen$3.00 / $15.00no99.2%
Moonshot AI$3.00 / $15.00no99.9%
Fireworks$3.30 / $16.50yes98.8%
Alibaba$3.45 / $17.25yes94.0%
Fireworks$4.50 / $22.50yes100.0%

A host that lists log probabilities may still omit them; Gimbix checks each one before relying on it.

Cheaper models that can answer first

Models priced below Kimi K3 that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.

ModelInput / output per 1MCheaper on a chat reply
GLM 5.3 Prime$2.80 / $8.8024%
GPT Audio$2.50 / $10.0025%
GPT-4o (2024-11-20)$2.50 / $10.0025%
GPT-4o (2024-08-06)$2.50 / $10.0025%
GPT-4o$2.50 / $10.0025%
Qwen3.8 Max (0902)$2.00 / $6.0047%

Questions

How much does Kimi K3 cost?

Kimi K3 lists at $3.00 per million input tokens and $15.00 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $12.00 per 1,000 requests.

What is the context window of Kimi K3?

1,048,576 tokens.

Can a cheaper model replace Kimi K3?

Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match Kimi K3 on one half of your requests and make at most three answers worse on the other.