Moonshot: Kimi K3.1 Pro Highspeed

Kimi K3.1 Pro Highspeed serves the same model as Kimi K3.1 Pro at about two to three times the output speed, for a higher per-token price. Use it for interactive agents and coding sessions where response time matters more than cost.

Compare models

kimi-k3.1-pro-highspeed

AvailableMoonshotChat

Input / Output: $4.00 / $20.00
Context: 1M
Max output: 128K
Modalities: VisionChat
Capabilities: Tool usePrompt CacheReasoning

About Kimi K3.1 Pro Highspeed

Kimi K3.1 Pro Highspeed is the fast-serving variant of Kimi K3.1 Pro from Moonshot AI. Moonshot lists the same intelligence and capabilities at about two to three times the speed, for a higher price per token. It suits interactive agents and coding sessions where waiting is the main cost. Thinking stays on, and it still accepts images and calls tools.

Where it works well

Moonshot lists about two to three times the speed of Kimi K3.1 Pro, with the same intelligence and capabilities.
The feature set matches K3.1 Pro: always-on thinking, tool calling, JSON schema output, and image input.
The reasoning_effort setting still takes low, high, or max, so you can trade depth against waiting time on top of the faster serving.
Agent loops that alternate between thinking and tool calls finish sooner, because each round of output arrives faster.

When to choose another model

It costs more per token than K3.1 Pro for the same model, so work that nobody waits on is better served there.
Moonshot does not list it for its Batch API, so offline bulk jobs should not count on this variant.
Faster output adds no extra intelligence; a harder task needs a higher reasoning_effort, not this variant.

Getting started

Create API key
Create a key in Console, then use it with every model on the platform.
02
Send your first request
Copy the example for your language and run it against the endpoint.
Text to textResponses API
POST/v1/responses
API format:
curl https://api.tokenlab.sh/v1/responses \ -H "Content-Type: application/json" \ -H "Authorization: Bearer sk-xxx" \ -d '{ "model": "kimi-k3.1-pro-highspeed", "input": "Hello!" }'

Pricing

The Verified price applies to Verified, which costs less on most models. The Official price is the model maker's published price and applies to the more reliable Official route. Auto bills the route that completes the request.

Default

per 1M tokens

Official price: Input $4.00 / Output $20.00 / Cache read $0.20 / Cache write $4.00 / Cache write (1h) $8.00 / Text Input $4.00 / Text Output $20.00
Verified price: —
Discount: —

Prompt cache pricing

Cache read

Official price: $0.20
Verified price: —
Discount: —

Cache write

Official price: $4.00
Verified price: —
Discount: —

Cache write (1h)

Official price: $8.00
Verified price: —
Discount: —

	Official priceper 1M tokens	Verified priceper 1M tokens	Discount
Default	Input $4.00 / Output $20.00 / Cache read $0.20 / Cache write $4.00 / Cache write (1h) $8.00 / Text Input $4.00 / Text Output $20.00	—	—
Prompt cache pricing
Cache read	$0.20	—	—
Cache write	$4.00	—	—
Cache write (1h)	$8.00	—	—

Usage & activity

Success rate is the share of requests that completed. Latency is how long a full response takes; P95 means 95% of requests finished within that time.

Usage & availability

Last 24 hours

Requests
Success rate
P95 latency
Total tokens

Model performance

Last updated Nov 5, 2026, 11:52 PM UTC

Metrics appear once privacy and data volume thresholds are met.

Data is based on aggregate user requests, excluding status checks.

Open in Console

Open Kimi K3.1 Pro Highspeed in Console with a prompt ready to edit or send.

Help me try kimi-k3.1-pro-highspeed with a short message at /v1/responses. Show the reply, latency, and cost.

Use cases

Best for

Reasoning
Vision

Interactive coding assistants
Serve an assistant in an editor or terminal where a developer waits on every reply and long agent loops need to stay responsive.
Agents with many tool calls
Run agents that alternate between reasoning and tool calls many times in one task, where faster output shortens the whole run.
Live document questions
Answer questions about a screenshot or a pasted document during a live session, where a person is waiting for the reply.
User-facing structured output
Return JSON that follows a schema inside a workflow such as form filling or triage, where the user watches the screen.

Prompt examples

Refactor this function to remove the nested callbacks, keep the public signature, and show only the changed lines.

Look at this screenshot of the error dialog and tell me which setting to change, in two sentences.

Use the lookup tool for each of these order IDs, then return a JSON list of the orders whose payment failed.

This model has conditional pricing. Monthly token totals alone cannot produce a reliable estimate; use the detailed pricing for the request specification, cache, and applicable time window.

FAQ

What is Kimi K3.1 Pro Highspeed?

The faster-serving version of Kimi K3.1 Pro. Moonshot lists the same intelligence and capabilities at about two to three times the speed, for a higher per-token price, and positions it for interactive agents and coding sessions.

Is Highspeed smarter than Kimi K3.1 Pro?

No. Moonshot lists the same intelligence and capabilities for both, and the differences are output speed and price. For a task that needs deeper reasoning, raise reasoning_effort to max rather than switching variant.

How much faster is it?

About two to three times the speed of Kimi K3.1 Pro, according to Moonshot. Real speed varies with prompt length, reasoning effort, and load, so time it on your own workload before you rely on it.

Can I use it for offline batch jobs?

Moonshot does not list Kimi K3.1 Pro Highspeed for its Batch API. The variant is built for work where a person or an agent waits on the reply, so bulk jobs with no deadline are a poor fit.

How does thinking work on Highspeed?

As on K3.1 Pro, thinking is always on and the reasoning_effort parameter takes low, high, or max. Lower the effort on routine turns to cut thinking time, and raise it when a task needs more careful reasoning.

How much does Kimi K3.1 Pro Highspeed cost?

On TokenLab, Kimi K3.1 Pro Highspeed costs Input $4.00 / Output $20.00 per 1M tokens. The pricing table above shows the full breakdown. Rates depend on the billing unit, specification, and usage. Compare matching conditions in the model's detailed pricing; a single rate does not determine the total cost.

What are the context window and output limit of Kimi K3.1 Pro Highspeed?

Kimi K3.1 Pro Highspeed accepts up to 1,048,576 tokens of context and returns up to 131,072 tokens in one response.

Which endpoint should Kimi K3.1 Pro Highspeed use?

Use https://api.tokenlab.sh/v1/responses for Kimi K3.1 Pro Highspeed. The request example below shows the matching code shape.

Which operations does Kimi K3.1 Pro Highspeed support?

Kimi K3.1 Pro Highspeed supports Text to text. Select an operation above to see its endpoint and request example.