Model Comparison

Grok 4.5 vs Pixtral LargeWhich is better in 2026?

Comparing Grok 4.5 and Pixtral Large across benchmarks, pricing, and capabilities.

Verdict: Grok 4.5 vs Pixtral Large — which is better?

Grok 4.5 (by xAI) and Pixtral Large (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.

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 Pixtral Large if…

  • 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 Pixtral Largedon'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

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

For output processing, Grok 4.5 ($6.00/1M tokens) costs the same as Pixtral Large ($6.00/1M tokens).

In conclusion, Grok 4.5 and Pixtral Large cost the same.*

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

Lowest available price from all providers
Sat Jul 18 2026 • llm-stats.com
xAI
Grok 4.5
Input tokens$2.00
Output tokens$6.00
Best providerxAI
Mistral AI
Pixtral Large
Input tokens$2.00
Output tokens$6.00
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 Pixtral Large's 128,000 tokens. Only Pixtral Large specifies output context (128,000 tokens).

xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Mistral AI
Pixtral Large
Input128,000 tokens
Output128,000 tokens
Sat Jul 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Grok 4.5 and Pixtral Large support multimodal inputs.

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

Grok 4.5

Text
Images
Audio
Video

Pixtral Large

Text
Images
Audio
Video

License

Usage and distribution terms

Grok 4.5 is licensed under a proprietary license, while Pixtral Large uses Mistral Research License (MRL) for research; Mistral Commercial License for commercial use.

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

Grok 4.5

Proprietary

Closed source

Pixtral Large

Mistral Research License (MRL) for research; Mistral Commercial License for commercial use

Open weights

Release Timeline

When each model was launched

Grok 4.5 was released on 2026-07-16, while Pixtral Large was released on 2024-11-18.

Grok 4.5 is 20 months newer than Pixtral Large.

Grok 4.5

Jul 16, 2026

2 days ago

1.7yr newer
Pixtral Large

Nov 18, 2024

1.7 years ago

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while Pixtral Large'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 Pixtral Large's cutoff date.

Grok 4.5

Feb 2026

Pixtral Large

—

Provider Availability

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

Grok 4.5

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

Pixtral Large

mistral logo
Mistral
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
* 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
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

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

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

FAQ

Common questions about Grok 4.5 vs Pixtral Large.

Which is better, Grok 4.5 or Pixtral Large?

Grok 4.5 (xAI) and Pixtral Large (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 Pixtral Large 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%. Pixtral Large scores AI2D: 93.8%, DocVQA: 93.3%, ChartQA: 88.1%, VQAv2: 80.9%, MM-MT-Bench: 74.0%.

Is Grok 4.5 cheaper than Pixtral Large?

Both models cost $2.00 per million input tokens.

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

Grok 4.5 supports 500K tokens and Pixtral Large 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 Pixtral Large?

Key differences include context window (500K vs 128K), licensing (Proprietary vs Mistral Research License (MRL) for research; Mistral Commercial License for commercial use). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.5 and Pixtral Large?

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

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