Model Comparison

Grok 4.5 vs MiniMax M1 40KWhich is better in 2026?

Grok 4.5 significantly outperforms across most benchmarks.

Verdict: Grok 4.5 vs MiniMax M1 40K — which is better?

Grok 4.5 (by xAI) and MiniMax M1 40K (by MiniMax) 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 outperforms in 1 benchmarks (GPQA), while MiniMax M1 40K is better at 0 benchmarks. Grok 4.5 significantly outperforms across most benchmarks.

Choose Grok 4.5 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 MiniMax M1 40K if…

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

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok 4.5 outperforms in 1 benchmarks (GPQA), while MiniMax M1 40K is better at 0 benchmarks.

Grok 4.5 significantly outperforms across most benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Grok 4.5 specifies input context (500,000 tokens).

xAI
Grok 4.5
Input500,000 tokens
Output- tokens
MiniMax
MiniMax M1 40K
Input- tokens
Output- tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok 4.5 supports multimodal inputs, whereas MiniMax M1 40K does not.

Grok 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok 4.5

Text
Images
Audio
Video

MiniMax M1 40K

Text
Images
Audio
Video

License

Usage and distribution terms

Grok 4.5 is licensed under a proprietary license, while MiniMax M1 40K uses MIT.

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

Grok 4.5

Proprietary

Closed source

MiniMax M1 40K

MIT

Open weights

Release Timeline

When each model was launched

Grok 4.5 was released on 2026-07-16, while MiniMax M1 40K was released on 2025-06-16.

Grok 4.5 is 13 months newer than MiniMax M1 40K.

Grok 4.5

Jul 16, 2026

1 weeks ago

1.1yr newer
MiniMax M1 40K

Jun 16, 2025

1.1 years ago

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while MiniMax M1 40K'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 MiniMax M1 40K's cutoff date.

Grok 4.5

Feb 2026

MiniMax M1 40K

—

Outputs Comparison

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Key Takeaways

xAI
Larger context window (500,000 tokens)
Supports multimodal inputs
Higher GPQA score (93.0% vs 69.2%)
MiniMax
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok 4.5 and MiniMax M1 40K side-by-side, then vote on the output you prefer.

Grok 4.5
✓ Preferred
MiniMax M1 40K
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok 4.5
MiniMax
MiniMax M1 40K

FAQ

Common questions about Grok 4.5 vs MiniMax M1 40K.

Which is better, Grok 4.5 or MiniMax M1 40K?

Grok 4.5 significantly outperforms across most benchmarks. Grok 4.5 is made by xAI and MiniMax M1 40K is made by MiniMax. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok 4.5 compare to MiniMax M1 40K 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%. MiniMax M1 40K scores MATH-500: 96.0%, AIME 2024: 83.3%, MMLU-Pro: 80.6%, ZebraLogic: 80.1%, OpenAI-MRCR: 2 needle 128k: 76.1%.

What are the context window sizes for Grok 4.5 and MiniMax M1 40K?

Grok 4.5 supports 500K tokens and MiniMax M1 40K 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 Grok 4.5 and MiniMax M1 40K?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.5 and MiniMax M1 40K?

Grok 4.5 is developed by xAI and MiniMax M1 40K is developed by MiniMax.

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