Models

Kimi K3 vs O1 Preview

Compare Kimi K3 from Moonshot AI and O1 Preview from OpenAI 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 K3OpenAIO1 Preview
Moonshot AI logo
Kimi K3
Moonshot AI · text, image, video → text

Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.

Input$3.00 /M
Output$15.00 /M
OpenAI logo
O1 Preview
OpenAI · text, image → text

The latest and most powerful inference model from OpenAI; AiHubMix uses both OpenAI and Microsoft Azure OpenAI channels simultaneously to achieve high-concurrency load balancing.

Input$15.00 /M
Output$60.00 /M

Pricing & Specifications

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

Kimi K3
O1 Preview
Input /M
$3.00
$15.00
Output /M
$15.00
$60.00
Cache read /M
$0.30
$7.50
Context length
1,048,576
0
Max output
1,048,576
0
Time to First Token
0.9 s
-
Throughput
73.1 tok/s
-
Modalities
textimagevideo
textimage
Supported Parameters
thinkingfunction callingstructured outputs
thinking
API Formats
Released
-
-

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-k3o1-preview

Tokens / day

-

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-k3o1-preview

Throughput (tok/s)

-

TTFT (s)

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Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
kimi-k3o1-preview
1360142014801540
Overall
14021486
Coding
14331531
Math
14091409
Hard prompts
14181505
Instruction following
14071479
Multi-turn
13861499
Creative writing
13811470
Longer query
14121502
Chinese
14301527
English
14111491

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

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

Kimi K3
$405 /mo
O1 Preview
$1,800 /mo

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

FAQ

Which is cheaper: Kimi K3, O1 Preview?

Kimi K3: $15.00/M output tokens; O1 Preview: $60.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Kimi K3: 1531; O1 Preview: 1433 (LMArena coding leaderboard).

What inputs and capabilities does each model support?

Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs; O1 Preview accepts text and image input and supports thinking.

Can I call Kimi K3 and O1 Preview 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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