Kimi K3 Fast API Pricing

Kimi K3 Fast pricing by provider

2 listings across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What Kimi K3 Fast costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

Kimi K3 Fast features

• Function calling
• Structured output
• Image input
• Reasoning

Use Kimi K3 Fast with LiteLLM

Call Kimi K3 Fast through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="fireworks_ai/kimi-k3-fast",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: kimi-k3-fast
    litellm_params:
      model: fireworks_ai/kimi-k3-fast
      api_key: os.environ/FIREWORKS_AI_API_KEY

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "kimi-k3-fast",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Kimi K3 Fast FAQ

More Moonshot AI models

• Kimi K3 Us$4.50 / $22.50 per 1M tokens
• Kimi K3$3 / $15 per 1M tokens
• Kimi K2.7 Code Highspeed$1.90 / $7.999 per 1M tokens
• Kimi K2.5 Fp4$0.50 / $2.80 per 1M tokens
• Kimi K2.7 Code$0.95 / $4 per 1M tokens
• Kimi K2p6 Fast$2 / $8 per 1M tokens
• Kimi K2p7 Code Fast$1.90 / $8 per 1M tokens
• Kimi K2.6$0.95 / $4 per 1M tokens