Kimi K3.1 Pro API: Pricing and Specs

Kimi K3.1 Pro API

Kimi K3.1 Pro is a large language model by Moonshot AI, available on the Venice API as kimi-k3-1-pro. It runs privately, with zero data retention.Kimi K3.1 Pro is Moonshot AI’s flagship multimodal reasoning model and the post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, agentic workflows, financial research, and 3D modeling through CAD code.

Kimi K3.1 Pro API pricing

Model ID	Variant	Privacy	Price
`kimi-k3-1-pro`	Standard	Private	$2.00 / $10.00 per 1M

Kimi K3.1 Pro specifications

Spec	Value
Provider	Moonshot AI
Released	Oct 23, 2026
Privacy	Private
Status	Stable
Context window	1M tokens
Max output	128K tokens
Reasoning effort	none, low, high, max

How to use the Kimi K3.1 Pro API

Send requests to POST https://api.venice.ai/api/v1/chat/completions with "model": "kimi-k3-1-pro" and your API key.

curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k3-1-pro",
    "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }],
    "reasoning_effort": "max"
  }'

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Kimi K3.1 Pro API