Kimi K3 Us API Pricing
As of October 10, 2026, Kimi K3 Us costs $4.50 per 1M input tokens and $22.50 per 1M output tokens on Fireworks AI, with cache reads at $0.45 per 1M tokens. It has a 1,048,576-token context window and returns up to 131,072 tokens per response.
- Input
- $4.50 / 1M tokens
- Output
- $22.50 / 1M tokens
- Cache read
- $0.45 / 1M tokens
- Context window
- 1,048,576 tokens
- Max output
- 131,072 tokens
- Providers
- 1
- Added to LiteLLM
- August 20, 2026
Kimi K3 Us 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.
| Provider | Model name in LiteLLM | Input | Output | Cache read | Context |
|---|---|---|---|---|---|
| Fireworks AI | fireworks_ai/kimi-k3-us | $4.50 | $22.50 | $0.45 | 1M |
| Fireworks AI | fireworks_ai/accounts/fireworks/routers/kimi-k3-us | $4.50 | $22.50 | $0.45 | 1M |
Other Kimi K3 Us prices on Fireworks AI
| Priority input | $5.625 per 1M tokens |
| Priority output | $28.13 per 1M tokens |
What Kimi K3 Us costs in practice
1,000 requests with 2,000 input and 500 output tokens each
| Fireworks AI | $20.25 |
100 long-document requests with 100,000 input and 2,000 output tokens each
| Fireworks AI | $49.50 |
Kimi K3 Us features
- Function calling
- Structured output
- Image input
- Reasoning
Use Kimi K3 Us with LiteLLM
Call Kimi K3 Us 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-us",
messages=[{"role": "user", "content": "Hello!"}],
)model_list:
- model_name: kimi-k3-us
litellm_params:
model: fireworks_ai/kimi-k3-us
api_key: os.environ/FIREWORKS_AI_API_KEYcurl http://0.0.0.0:4000/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-1234" \
-d '{
"model": "kimi-k3-us",
"messages": [{"role": "user", "content": "Hello!"}]
}'Kimi K3 Us FAQ
How much does Kimi K3 Us cost?
Kimi K3 Us costs $4.50 per 1M input tokens and $22.50 per 1M output tokens on Fireworks AI, with cache reads at $0.45 per 1M tokens.
What is the context window of Kimi K3 Us?
Kimi K3 Us has a 1,048,576-token context window and returns up to 131,072 tokens per response.
Which providers offer Kimi K3 Us?
Kimi K3 Us is available from Fireworks AI through LiteLLM, using the model name fireworks_ai/kimi-k3-us.
How do I call Kimi K3 Us with an OpenAI-compatible API?
Use the LiteLLM Python SDK with model="fireworks_ai/kimi-k3-us", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.
What features does Kimi K3 Us support?
Kimi K3 Us supports function calling, structured output, image input and reasoning.
When did LiteLLM add Kimi K3 Us?
Kimi K3 Us was added to LiteLLM's model price file on August 20, 2026.
Sources
Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:
LiteLLM docs: Fireworks AI.
Provider pages: Fireworks AI.
