Models

Kimi K3 vs Nvidia Nemotron 3 Super 120B A12B

Compare Kimi K3 from Moonshot AI and Nvidia Nemotron 3 Super 120B A12B from Nvidia 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 K3NvidiaNvidia Nemotron 3 Super 120B A12B
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
Nvidia logo
Nvidia Nemotron 3 Super 120B A12B
Nvidia · text → text

An open-source, efficient hybrid Mamba-Transformer MoE model that supports a context length of one million tokens and excels at agent reasoning, programming, planning, and tool invocation.

Input$0.11 /M
Output$0.55 /M

Pricing & Specifications

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

Kimi K3
Nvidia Nemotron 3 Super 120B A12B
Input /M
$3.00
$0.11
Output /M
$15.00
$0.55
Cache read /M
$0.30
$0.03
Context length
1,048,576
1,000,000
Max output
1,048,576
0
Time to First Token
0.9 s
-
Throughput
73.1 tok/s
-
Modalities
textimagevideo
text
Supported Parameters
thinkingfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputslong context
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-k3nvidia-nemotron-3-super-120b-a12b

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

kimi-k3nvidia-nemotron-3-super-120b-a12b

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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LMArena Benchmarks

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

Text
kimi-k3nvidia-nemotron-3-super-120b-a12b
1280136014401520
Overall
13621486
Coding
14111531
Math
13761376
Hard prompts
13811505
Instruction following
13461479
Multi-turn
13501499
Creative writing
13041470
Longer query
13611502
Chinese
14031527
English
13851491

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.

Nvidia Nemotron 3 Super 120B A12B
$14.85 /mo
Kimi K3
$405 /mo

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

FAQ

Which is cheaper: Kimi K3, Nvidia Nemotron 3 Super 120B A12B?

Nvidia Nemotron 3 Super 120B A12B: $0.55/M output tokens; Kimi K3: $15.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Kimi K3: 1531; Nvidia Nemotron 3 Super 120B A12B: 1411 (LMArena coding leaderboard).

How large is each context window?

Kimi K3 accepts 1,048,576 and Nvidia Nemotron 3 Super 120B A12B accepts 1,000,000 input tokens.

What inputs and capabilities does each model support?

Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs; Nvidia Nemotron 3 Super 120B A12B accepts text input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call Kimi K3 and Nvidia Nemotron 3 Super 120B A12B 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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