Model Comparison

Kimi K3 vs Nemotron Nano 9B v2Which is better in 2026?

Kimi K3 significantly outperforms across most benchmarks.

Verdict: Kimi K3 vs Nemotron Nano 9B v2 — which is better?

Kimi K3 (by Moonshot AI) and Nemotron Nano 9B v2 (by NVIDIA) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Kimi K3 outperforms in 1 benchmarks (GPQA), while Nemotron Nano 9B v2 is better at 0 benchmarks. Kimi K3 significantly outperforms across most benchmarks.

Choose Kimi K3 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026

Choose Nemotron Nano 9B v2 if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Kimi K3 outperforms in 1 benchmarks (GPQA), while Nemotron Nano 9B v2 is better at 0 benchmarks.

Kimi K3 significantly outperforms across most benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

2791.1B diff

Kimi K3 has 2791.1B more parameters than Nemotron Nano 9B v2, making it 31360.7% larger.

Moonshot AI
Kimi K3
2.8Tparameters
NVIDIA
Nemotron Nano 9B v2
8.9Bparameters
2800.0B
Kimi K3
8.9B
Nemotron Nano 9B v2

Context Window

Maximum input and output token capacity

Only Kimi K3 specifies input context (1,048,576 tokens). Only Kimi K3 specifies output context (1,048,576 tokens).

Moonshot AI
Kimi K3
Input1,048,576 tokens
Output1,048,576 tokens
NVIDIA
Nemotron Nano 9B v2
Input- tokens
Output- tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Kimi K3 supports multimodal inputs, whereas Nemotron Nano 9B v2 does not.

Kimi K3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Kimi K3

Text
Images
Audio
Video

Nemotron Nano 9B v2

Text
Images
Audio
Video

Release Timeline

When each model was launched

Kimi K3 was released on 2026-07-16, while Nemotron Nano 9B v2 was released on 2025-08-18.

Kimi K3 is 11 months newer than Nemotron Nano 9B v2.

Kimi K3

Jul 16, 2026

1 weeks ago

11mo newer
Nemotron Nano 9B v2

Aug 18, 2025

11 months ago

Knowledge Cutoff

When training data ends

Nemotron Nano 9B v2 has a documented knowledge cutoff of 2024-09-01, while Kimi K3's cutoff date is not specified.

We can confirm Nemotron Nano 9B v2's training data extends to 2024-09-01, but cannot make a direct comparison without Kimi K3's cutoff date.

Kimi K3

Nemotron Nano 9B v2

Sep 2024

Outputs Comparison

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Key Takeaways

Larger context window (1,048,576 tokens)
Supports multimodal inputs
Higher GPQA score (93.5% vs 64.0%)

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Kimi K3 and Nemotron Nano 9B v2 side-by-side, then vote on the output you prefer.

Kimi K3
✓ Preferred
Nemotron Nano 9B v2
Open in Playground
AI Model Comparison Table
Feature
Moonshot AI
Kimi K3
NVIDIA
Nemotron Nano 9B v2

FAQ

Common questions about Kimi K3 vs Nemotron Nano 9B v2.

Which is better, Kimi K3 or Nemotron Nano 9B v2?

Kimi K3 significantly outperforms across most benchmarks. Kimi K3 is made by Moonshot AI and Nemotron Nano 9B v2 is made by NVIDIA. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Kimi K3 compare to Nemotron Nano 9B v2 in benchmarks?

Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%. Nemotron Nano 9B v2 scores MATH-500: 97.8%, IFEval: 90.3%, AIME 2025: 72.1%, LiveCodeBench: 71.1%, BFCL_v3_MultiTurn: 66.9%.

What are the context window sizes for Kimi K3 and Nemotron Nano 9B v2?

Kimi K3 supports 1.0M tokens and Nemotron Nano 9B v2 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Kimi K3 and Nemotron Nano 9B v2?

Key differences include multimodal support (yes vs no), licensing (Unknown vs NVIDIA Open Model License Agreement ). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3 and Nemotron Nano 9B v2?

Kimi K3 is developed by Moonshot AI and Nemotron Nano 9B v2 is developed by NVIDIA.