Moonshot AI: Kimi K3.1 Pro

One API key. Live prices. Ready-to-run code.

1 Pro is Moonshot AI's flagship model, a post-trained version of Kimi K3 with much more reinforcement learning, and its most capable open-weight model to date.

Served on OneInfer by Novita and DeepInfra. Use it with the same API key and pay-as-you-go wallet as every other model in the catalog.

ProviderNovitamoonshotai/Kimi-K3.1-Pro

Call Kimi K3.1 Pro in 5 steps

Step 1 of 5

Novita and DeepInfra serve this model. The pricing table below lists each provider’s rate.

OverviewProvidersPricingBenchmarksAPI and quickstartReviews
Input tokens
$2.000 / 1M tokens
Output tokens
$10.000 / 1M tokens
Context
1M
Input
text, image
Output
text
Tool calling
Supported

About this model

Kimi K3.1 Pro is Moonshot AI's flagship model, a post-trained version of Kimi K3 with much more reinforcement learning, and its most capable open-weight model to date. It improves on K3 in coding, 3D creation, financial research and agentic work, always reasons (reasoning_effort low, high or max), reads images, calls tools and has a 1M-token context window.

Input modalities

  • text

    Accepted as model input

  • image

    Accepted as model input

Providers

Available routing options for this model through OneInfer.

  • Novita
    Available
    Input tokens
    $2.000 / 1M tokens
    Output tokens
    $10.000 / 1M tokens
    Routing
    OneInfer optimized
  • DeepInfra
    Available
    Input tokens
    $2.000 / 1M tokens
    Output tokens
    $10.000 / 1M tokens
    Routing
    OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Input tokens$2.000 / 1M tokens
Output tokens$10.000 / 1M tokens
Cached input tokens$0.200 / 1M tokens

Performance and benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet.

API guide

API docs

  1. Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. Check your credits

    If your balance is too low, before calling the model.

  4. Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl https://api.oneinfer.ai/v1/ula/chat/completions \
  -H "Authorization: Bearer $JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "moonshotai/Kimi-K3.1-Pro",
    "messages": [
      { "role": "user", "content": "Hello!" }
    ]
  }'

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