25% offKimi K3.1 Pro API
Moonshot AI·Vision· 100.0% success (7d)
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
Pricing
Cheapest live price, per 1 million tokens.
Input / 1M tokens
$2.00 OpenRouter
Output / 1M tokens
$10.00 OpenRouter
Cache read / 1M
Repeated prompt prefixes
Cache read is the discounted rate for repeated prompt prefixes (system prompts, agent context).
Capabilities · 7
Specifications
- Context window
- 1.0M
- Max output
- 944K
- Type
- Vision
- Creator
- Moonshot AI
- Live sellers
- 22
- Requests / 24h
- 24,201
Estimated monthly cost
30 days at the cheapest live price.
Quick start
OpenAI-compatible — change the base URL and key. Get a key from the dashboard.
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="YOUR_QUBAX_API_KEY",
)
response = client.chat.completions.create(
model="kimi-k3.1-pro",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)About Kimi K3.1 Pro
Kimi K3.1 Pro is a multimodal language model developed by Moonshot AI. It's particularly well-suited for analyzing images, screenshots, and visual content, tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services, producing structured outputs for reliable data extraction and handling large contexts of up to 1.0M tokens. Its 1.0M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. It can write up to 944K tokens in a single response.
As of Oct 25, 2026, Kimi K3.1 Pro costs $1.50 per 1M input tokens and $7.50 per 1M output tokens on Qubax, versus $2.00 / $10.00 on OpenRouter (25% less on input). A typical 1,000 chat requests (2K tokens in, 500 out) come to about $6.75. Measured availability over the last 7 days: 100.0%. 22 independent compute providers currently serve it, so requests fail over automatically. It handled 24,201 requests on Qubax in the last 24 hours. Pay with USDC, USDT, BTC, ETH or 350+ other coins — no credit card required.
Similar-priced alternatives
Frequently asked questions
How much does the Kimi K3.1 Pro API cost?
On Qubax, Kimi K3.1 Pro costs $1.50 per 1M input tokens and $7.50 per 1M output tokens. This is 25% cheaper than OpenRouter's price of $2.00 per 1M input tokens.
Is the Kimi K3.1 Pro API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use Kimi K3.1 Pro as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
Why is Kimi K3.1 Pro cheaper on Qubax than OpenRouter?
Qubax sources AI inference from an open compute marketplace on the Base blockchain where GPU providers compete on price. We pass the savings to you — 25% cheaper than OpenRouter's price for Kimi K3.1 Pro.
How do I pay for Kimi K3.1 Pro API usage?
Qubax uses prepaid crypto credits. Top up with USDC, USDT, BTC, ETH, SOL or 350+ other coins and your balance is deducted as you use the API. No credit card or KYC required.
What is the context window of Kimi K3.1 Pro?
Kimi K3.1 Pro supports a context window of 1.0M tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with Kimi K3.1 Pro?
You can use Kimi K3.1 Pro to analyze images and visual content, tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, generate structured JSON output for data pipelines and process long documents and entire codebases. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast and reliable is Kimi K3.1 Pro on Qubax?
Measured time to first token (p95) on Qubax is 14.5s. Its 7-day success rate is 100.0%. Responses stream token by token. 22 providers serve it, so if one is slow or down the request moves to the next.
Kimi K3.1 Pro vs Claude Opus 5: which should I choose?
Kimi K3.1 Pro by Moonshot AI and Claude Opus 5 by Anthropic are both strong models in a similar price tier. Kimi K3.1 Pro excels at complex reasoning and supports vision/image inputs. Claude Opus 5 comes from a different lab and may have different strengths depending on your workload. On Qubax, Kimi K3.1 Pro starts at $1.50/1M input tokens while Claude Opus 5 comes in at $1.49/1M, so Claude Opus 5 may be worth considering if you need to minimize per-token cost. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use Kimi K3.1 Pro for commercial projects?
Yes. Kimi K3.1 Pro on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
Why use Kimi K3.1 Pro on Qubax?
25% cheaper
Providers compete on price — you get the cheapest healthy seller.
Pay with crypto
350+ coins (BTC, ETH, SOL, USDT, USDC). No card, no KYC.
OpenAI & Anthropic compatible
Drop-in base URL. Works with Cline, Cursor, Claude Code, OpenAI and Anthropic SDKs.