Function calling Reasoning Reasoning
Kimi K2 Thinking is Moonshot AI’s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning. Built on the trillion-parameter Mixture-of-Experts (MoE) architecture introduced in...
What it's best for
Best for multi-step problems where the model benefits from working through its chain of thought: maths, analysis, planning and agentic loops. Reasoning models produce (and bill for) more output tokens than plain chat models, so use them where the extra thinking pays for itself. It supports function calling, so it can drive tools and agent workflows.
Pricing
Prices updated daily — last generated 2026-07-08.
Billing is metered per request in GBP on the same monthly invoice as your apps — no subscription, no minimum. We list every model once, at the cheapest route we can serve it on; if we have to fail over to a more expensive route, we absorb the difference and your price does not change.
Where your data is processed
Requests to Kimi K2 Thinking are routed to a vetted partner provider and processed on that provider's infrastructure — they leave our infrastructure, and the UK-residency guarantee that applies to our UK-hosted models does not apply here. We hold the provider credentials server-side and route on cost and availability. If you need prompts that never leave our own infrastructure, use one of our UK-hosted models.
Call it in two minutes
The gateway is OpenAI-compatible: point your SDK or HTTP client at
api.node.uk and use the model id kimi-k2-thinking.
Credentials come from your portal, with £15
of free credit on signup.
curl https://api.node.uk/api/v1/models/kimi-k2-thinking/v1/chat/completions \
-H "Authorization: Bearer $NODE_GATEWAY_TOKEN" \
-H "Content-Type: application/json" \
-d '{"model": "kimi-k2-thinking", "messages": [{"role": "user", "content": "Hello"}]}'from openai import OpenAI
client = OpenAI(
base_url="https://api.node.uk/api/v1/models/kimi-k2-thinking/v1",
api_key=NODE_GATEWAY_TOKEN,
)
reply = client.chat.completions.create(
model="kimi-k2-thinking",
messages=[{"role": "user", "content": "Hello"}],
)Related models
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