Model Comparison

Grok 4.5 vs Mistral Large 3Which is better in 2026?

Comparing Grok 4.5 and Mistral Large 3 across benchmarks, pricing, and capabilities.

Verdict: Grok 4.5 vs Mistral Large 3 — which is better?

Grok 4.5 (by xAI) and Mistral Large 3 (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.

On price, Mistral Large 3 is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok 4.5 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok 4.5 if…

  • you process long inputs — it offers a 500,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose Mistral Large 3 if…

  • cost matters — it's about 1.1x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok 4.5 and Mistral Large 3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Mistral Large 3 costs less

For input processing, Grok 4.5 ($2.00/1M tokens) costs the same as Mistral Large 3 ($2.00/1M tokens).

For output processing, Grok 4.5 ($6.00/1M tokens) is 1.2x more expensive than Mistral Large 3 ($5.00/1M tokens).

In conclusion, Grok 4.5 is more expensive than Mistral Large 3.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Jul 21 2026 • llm-stats.com
xAI
Grok 4.5
Input tokens$2.00
Output tokens$6.00
Best providerxAI
Mistral AI
Mistral Large 3
Input tokens$2.00
Output tokens$5.00
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok 4.5 accepts 500,000 input tokens compared to Mistral Large 3's 128,000 tokens. Only Mistral Large 3 specifies output context (8,192 tokens).

xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Mistral AI
Mistral Large 3
Input128,000 tokens
Output8,192 tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Grok 4.5 and Mistral Large 3 support multimodal inputs.

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

Grok 4.5

Text
Images
Audio
Video

Mistral Large 3

Text
Images
Audio
Video

License

Usage and distribution terms

Grok 4.5 is licensed under a proprietary license, while Mistral Large 3 uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Grok 4.5

Proprietary

Closed source

Mistral Large 3

Apache 2.0

Open weights

Release Timeline

When each model was launched

Grok 4.5 was released on 2026-07-16, while Mistral Large 3 was released on 2025-09-01.

Grok 4.5 is 11 months newer than Mistral Large 3.

Grok 4.5

Jul 16, 2026

5 days ago

10mo newer
Mistral Large 3

Sep 1, 2025

10 months ago

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while Mistral Large 3's cutoff date is not specified.

We can confirm Grok 4.5's training data extends to 2026-02-01, but cannot make a direct comparison without Mistral Large 3's cutoff date.

Grok 4.5

Feb 2026

Mistral Large 3

—

Provider Availability

Grok 4.5 is available from xAI. Mistral Large 3 is available from Mistral AI.

Grok 4.5

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M

Mistral Large 3

mistral logo
Mistral
Input Price:Input: $2.00/1MOutput Price:Output: $5.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI
Larger context window (500,000 tokens)
Mistral AI
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok 4.5 and Mistral Large 3 side-by-side, then vote on the output you prefer.

Grok 4.5
✓ Preferred
Mistral Large 3
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok 4.5
Mistral AI
Mistral Large 3

FAQ

Common questions about Grok 4.5 vs Mistral Large 3.

Which is better, Grok 4.5 or Mistral Large 3?

Grok 4.5 (xAI) and Mistral Large 3 (Mistral AI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Grok 4.5 compare to Mistral Large 3 in benchmarks?

Grok 4.5 scores GPQA: 93.0%, Terminal-Bench 2.1: 83.3%, Artificial Analysis Coding Agent Index v1.1: 76.0%, SWE-Bench Pro: 64.7%, AA-Omniscience Index: 63.0%. Mistral Large 3 scores MATH: 90.4%, MM-MT-Bench: 84.9%, MMLU-Redux: 82.0%, TriviaQA: 74.9%, MMMLU: 74.2%.

Is Grok 4.5 cheaper than Mistral Large 3?

Both models cost $2.00 per million input tokens.

What are the context window sizes for Grok 4.5 and Mistral Large 3?

Grok 4.5 supports 500K tokens and Mistral Large 3 supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok 4.5 and Mistral Large 3?

Key differences include context window (500K vs 128K), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.5 and Mistral Large 3?

Grok 4.5 is developed by xAI and Mistral Large 3 is developed by Mistral AI.

Related comparisons