Model Comparison

Kimi K3 vs Mistral Large 3 (675B Instruct 2512 Eagle)Which is better in 2026?

Kimi K3 significantly outperforms across most benchmarks.

Verdict: Kimi K3 vs Mistral Large 3 (675B Instruct 2512 Eagle) — which is better?

Kimi K3 (by Moonshot AI) and Mistral Large 3 (675B Instruct 2512 Eagle) (by Mistral AI) 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 Mistral Large 3 (675B Instruct 2512 Eagle) 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 Mistral Large 3 (675B Instruct 2512 Eagle) 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 Mistral Large 3 (675B Instruct 2512 Eagle) is better at 0 benchmarks.

Kimi K3 significantly outperforms across most benchmarks.

Mon Jul 20 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

2125.0B diff

Kimi K3 has 2125.0B more parameters than Mistral Large 3 (675B Instruct 2512 Eagle), making it 314.8% larger.

Moonshot AI
Kimi K3
2.8Tparameters
Mistral AI
Mistral Large 3 (675B Instruct 2512 Eagle)
675.0Bparameters
2800.0B
Kimi K3
675.0B
Mistral Large 3 (675B Instruct 2512 Eagle)

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
Mistral AI
Mistral Large 3 (675B Instruct 2512 Eagle)
Input- tokens
Output- tokens
Mon Jul 20 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Kimi K3 and Mistral Large 3 (675B Instruct 2512 Eagle) support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Kimi K3

Text
Images
Audio
Video

Mistral Large 3 (675B Instruct 2512 Eagle)

Text
Images
Audio
Video

Release Timeline

When each model was launched

Kimi K3 was released on 2026-07-16, while Mistral Large 3 (675B Instruct 2512 Eagle) was released on 2025-12-04.

Kimi K3 is 7 months newer than Mistral Large 3 (675B Instruct 2512 Eagle).

Kimi K3

Jul 16, 2026

4 days ago

7mo newer
Mistral Large 3 (675B Instruct 2512 Eagle)

Dec 4, 2025

7 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Moonshot AI
Larger context window (1,048,576 tokens)
Higher GPQA score (93.5% vs 43.9%)
Mistral AI

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 Mistral Large 3 (675B Instruct 2512 Eagle) side-by-side, then vote on the output you prefer.

Kimi K3
✓ Preferred
Mistral Large 3 (675B Instruct 2512 Eagle)
Open in Playground
AI Model Comparison Table
Feature
Moonshot AI
Kimi K3
Mistral AI
Mistral Large 3 (675B Instruct 2512 Eagle)

FAQ

Common questions about Kimi K3 vs Mistral Large 3 (675B Instruct 2512 Eagle).

Which is better, Kimi K3 or Mistral Large 3 (675B Instruct 2512 Eagle)?

Kimi K3 significantly outperforms across most benchmarks. Kimi K3 is made by Moonshot AI and Mistral Large 3 (675B Instruct 2512 Eagle) is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Kimi K3 compare to Mistral Large 3 (675B Instruct 2512 Eagle) in benchmarks?

Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%. Mistral Large 3 (675B Instruct 2512 Eagle) scores MMMLU: 85.5%, AMC_2022_23: 52.0%, GPQA: 43.9%, LiveCodeBench: 34.4%, SimpleQA: 23.8%.

What are the context window sizes for Kimi K3 and Mistral Large 3 (675B Instruct 2512 Eagle)?

Kimi K3 supports 1.0M tokens and Mistral Large 3 (675B Instruct 2512 Eagle) 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 Mistral Large 3 (675B Instruct 2512 Eagle)?

Key differences include licensing (Unknown vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3 and Mistral Large 3 (675B Instruct 2512 Eagle)?

Kimi K3 is developed by Moonshot AI and Mistral Large 3 (675B Instruct 2512 Eagle) is developed by Mistral AI.

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