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Kimi K3.1 Pro vs Kimi K3.1 Pro Highspeed

Compare Kimi K3.1 Pro from Moonshot AI and Kimi K3.1 Pro Highspeed from Moonshot AI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

Moonshot AIKimi K3.1 ProMoonshot AIKimi K3.1 Pro Highspeed
Moonshot AI logo
Kimi K3.1 Pro
Moonshot AI · text, image → text

Kimi K3.1 Pro is based on Moonshot AI’s Kimi K3.1, offering code generation and interactive content development capabilities for coding assistance, code analysis, and visual prototyping.

Input$2 /M
Output$10.5 /M
Cache read$0.2 /M
Moonshot AI logo
Kimi K3.1 Pro Highspeed
Moonshot AI · image, text → text

Kimi K3.1 Pro Highspeed is an accelerated serving option for Kimi K3.1 Pro, focused on responsive code generation for interactive coding, rapid prototyping, and latency-sensitive applications.

Input$4 /M
Output$21 /M
Cache read$0.2 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Kimi K3.1 Pro
Kimi K3.1 Pro Highspeed
Input /M
$2
$4
Output /M
$10.5
$21
Cache read /M
$0.2
$0.2
Context length
0
0
Max output
0
0
Time to First Token
10.1 s
1.8 s
Throughput
39.3 tok/s
121.3 tok/s
Modalities
textimage
imagetext
Supported Parameters
API Formats
Released
October 24, 2026
October 24, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

kimi-k3.1-prokimi-k3.1-pro-highspeed

Tokens / day

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Requests / day

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Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

kimi-k3.1-prokimi-k3.1-pro-highspeed

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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Cost calculator

Estimate your monthly bill for the same workload on each model.

Kimi K3.1 Pro
$278 /mo
Kimi K3.1 Pro Highspeed
$555 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Kimi K3.1 Pro, Kimi K3.1 Pro Highspeed?

Kimi K3.1 Pro: $10.5/M output tokens; Kimi K3.1 Pro Highspeed: $21/M. Use the cost calculator above to estimate your own workload.

Which responds faster?

Kimi K3.1 Pro Highspeed: 1.8s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

Which one generates tokens faster?

Kimi K3.1 Pro Highspeed at 121.3 tok/s and Kimi K3.1 Pro at 39.3 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Kimi K3.1 Pro accepts text and image input; Kimi K3.1 Pro Highspeed accepts image and text input.

Can I call Kimi K3.1 Pro and Kimi K3.1 Pro Highspeed with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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