Model Comparison
MiniMax M2.7 vs Grok 4.5Which is better in 2026?
Grok 4.5 significantly outperforms across most benchmarks. MiniMax M2.7 is 5.7x cheaper per token.
Verdict: MiniMax M2.7 vs Grok 4.5 — which is better?
MiniMax M2.7 (by MiniMax) and Grok 4.5 (by xAI) 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.
MiniMax M2.7 outperforms in 0 benchmarks, while Grok 4.5 is better at 3 benchmarks (Artificial Analysis, GDPval-AA, SWE-Bench Pro). Grok 4.5 significantly outperforms across most benchmarks.
On price, MiniMax M2.7 is roughly 5.7x 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 MiniMax M2.7 if…
- cost matters — it's about 5.7x cheaper per token
- you need open weights you can self-host or fine-tune
Choose Grok 4.5 if…
- you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
- you process long inputs — it offers a 500,000 token context window
- you want the most recent training data — it shipped Jul 2026
Performance Benchmarks
Comparative analysis across standard metrics
MiniMax M2.7 outperforms in 0 benchmarks, while Grok 4.5 is better at 3 benchmarks (Artificial Analysis, GDPval-AA, SWE-Bench Pro).
Grok 4.5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, MiniMax M2.7 ($0.30/1M tokens) is 6.7x cheaper than Grok 4.5 ($2.00/1M tokens).
For output processing, MiniMax M2.7 ($1.20/1M tokens) is 5.0x cheaper than Grok 4.5 ($6.00/1M tokens).
In conclusion, Grok 4.5 is more expensive than MiniMax M2.7.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok 4.5 accepts 500,000 input tokens compared to MiniMax M2.7's 196,608 tokens. Only MiniMax M2.7 specifies output context (196,608 tokens).
Input Capabilities
Supported data types and modalities
Grok 4.5 supports multimodal inputs, whereas MiniMax M2.7 does not.
Grok 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.
MiniMax M2.7
Grok 4.5
License
Usage and distribution terms
MiniMax M2.7 is licensed under MIT, while Grok 4.5 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
MiniMax M2.7 was released on 2026-03-18, while Grok 4.5 was released on 2026-07-08.
Grok 4.5 is 4 months newer than MiniMax M2.7.
Mar 18, 2026
4 months ago
Jul 8, 2026
1 weeks ago
3mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
MiniMax M2.7 is available from Fireworks, MiniMax, Novita. Grok 4.5 is available from xAI.
MiniMax M2.7
Grok 4.5
Outputs Comparison
Key Takeaways
MiniMax M2.7
View detailsMiniMax
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against MiniMax M2.7 and Grok 4.5 side-by-side, then vote on the output you prefer.
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FAQ
Common questions about MiniMax M2.7 vs Grok 4.5.