Kimi K3 Fast API
Access Kimi K3 Fast through a simple, OpenAI-compatible API. Change one URL and one key — your existing code works immediately. No SDK changes needed.
Kimi K3 Fast Pricing
| Token Type | Qubax | Retail | Save |
|---|---|---|---|
| Input (per 1M) | $1.69 | $4.50 | 63% |
| Output (per 1M) | $8.44 | $22.50 | 63% |
At $1.69/1M input tokens, Kimi K3 Fast is one of the most affordable APIs in its class.
Why use Kimi K3 Fast API on Qubax?
- ⚡Point your OpenAI SDK at https://api.qubax.ai/v1
- ⚡Use model ID: kimi-k3-fast-api
- ⚡Generate API keys starting with qbx_live_
- ⚡Full streaming, function calling, and vision support
About Kimi K3 Fast
Kimi K3 Fast is Venice’s low-latency serving profile for Moonshot AI’s 1M-context multimodal Kimi K3 model, with reasoning, tools, and structured outputs. It supports a 1M-token context window and up to 131K output tokens per request. Native capabilities include reasoning, vision, tool calling, structured output, streaming. On Qubax it is served by 38 independent sellers, so pricing stays competitive and uptime stays high.
Kimi K3 Fast API Access — code example
from openai import OpenAI
# Only two lines change vs the official API:
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="qbx_live_YOUR_KEY",
)
response = client.chat.completions.create(
model="kimi-k3-fast-api",
messages=[{"role": "user", "content": "Hello, Kimi K3 Fast!"}],
)
print(response.choices[0].message.content)More Moonshot AI models on Qubax
Get started in 60 seconds
- 1Create a free account at qubax.ai/register
- 2Add crypto credits (200+ coins, $3 minimum, credits never expire)
- 3Generate an API key and set your base URL to
https://api.qubax.ai/v1 - 4Use model ID
kimi-k3-fast-api— done!
Kimi K3 Fast API Access FAQ
How much does Kimi K3 Fast cost API?
On Qubax, Kimi K3 Fast costs $1.69 per 1M input tokens and $8.44 per 1M output tokens. 63% cheaper than OpenRouter. Pay with 200+ cryptocurrencies.
Can I use Kimi K3 Fast with my existing tools?
Yes. Qubax is fully OpenAI-compatible. Change your base URL to api.qubax.ai/v1 and use your Qubax key. Works with Cline, Cursor, OpenCode, LangChain, and any OpenAI SDK.
Do I need a credit card?
No. Qubax accepts 200+ cryptocurrencies. No credit card, no KYC.