Moonshot

Moonshot

Kimi K3

Moonshot's 2.8T open-weight multimodal reasoning model. Successor to K2.7 — 1M context, vision input, built for long-horizon agentic work.

Modalities

Text+Image → Text

Input

$4.05 /1M

Output

$20.25 /1M

Cached input

$0.41 /1M90% off

Context

1M

Speed

medium

Performance

Live production data from real requests on Kyma — not synthetic benchmarks.

Rank

#44

of 65 active models

Tokens served

838

all-time

Total requests8
Platform share0.0%
Tokens · last 15 daysJul 15Jul 29

Pricing

Pay per token. Cached input is billed at 10% of the input rate.

$4.05 /1M input$20.25 /1M output
Hobby10 req/day · 2K in / 500 out
~$5.47/mo
Production1,000 req/day · 2K in / 500 out
~$547/mo
Scale20,000 req/day · 2K in / 500 out
~$10,935/mo
+ Estimate your workload
1,000
2,000
500
30%

Estimated monthly cost

$481

$16.04 / day on Kimi K3

Same workload on:

Kimi K2.7 Code$158-67%
Kimi K2.6$158-67%

Estimates use list pricing with cached input billed at the 90%-discount rate. Actual bills depend on real token counts — every response includes its exact cost.

How it compares

Against the peers people actually weigh it against.

SpecKimi K3Kimi K2.7 CodeKimi K2.6
Input /1M$4.05$1.28$1.28
Output /1M$20.25$5.40$5.40
Context1M262K262K
ToolsYesYesYes
ReasoningYesYesYes
Speedmediummediummedium

Quick start

Up and running in under two minutes.

  1. 1

    Create an API key

    Sign up and grab a key from the dashboard — $0.50 free credit, no card required.

    Get API key →
  2. 2

    Make your first request

    Drop in your key and send a chat completion — fully OpenAI-compatible.

    curl https://kymaapi.com/v1/chat/completions \
      -H "Authorization: Bearer YOUR_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "kimi-k3",
        "messages": [
          {"role": "user", "content": "Explain prompt caching in one paragraph."}
        ]
      }'
  3. 3

    Stream responses

    Add "stream": true to receive tokens as they arrive.

    curl https://kymaapi.com/v1/chat/completions \
      -H "Authorization: Bearer YOUR_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "kimi-k3",
        "stream": true,
        "messages": [{"role": "user", "content": "Hello!"}]
      }'

FAQ

Common questions about this model.

What is the context window of Kimi K3?

Kimi K3 has a 1M-token context window — roughly 1542 pages of text in a single request.

How much does the Kimi K3 API cost?

$4.05 per 1M input tokens and $20.25 per 1M output tokens, with cached input at $0.41/1M — a 90% discount on repeated prompt prefixes. No subscription; you pay only for what you use.

Does Kimi K3 support function calling?

Yes — Kimi K3 supports tool/function calling and structured outputs (JSON mode), so it works with agent frameworks out of the box.

How do I use Kimi K3?

Kyma is OpenAI-compatible: point your SDK's base URL at https://kymaapi.com/v1, use your Kyma API key, and set the model to kimi-k3. Signing up is free and includes $0.50 of credit — no card required.

Start with $0.50 free credit — no card required.Create account →