Grok 4 Fast vs MiniMax M2.1: Specs & Benchmark Comparison
| Characteristic | Grok 4 Fast | MiniMax M2.1 |
|---|---|---|
| Company | xAI | MiniMax |
| Release Date | August 27, 2025 | December 22, 2025 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 2.0M | 1.0M |
| Context (output) | 30K | 100K |
| Input Price / 1M | $0.20 | $0.30 |
| Output Price / 1M | $0.50 | $1.20 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
Visual Benchmark Comparison
Grok 4 Fast
MiniMax M2.1
GPQA0.9 vs 0.8
0.9
0.8
Verdict
Grok 4 Fast leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Grok 4 Fast — 0.8, MiniMax M2.1 — 0.9.
API Cost
Grok 4 Fast is 2.1x cheaper: input $0.20/1M vs $0.30/1M tokens.
Context Window
Grok 4 Fast supports a larger context: 2M vs 1M tokens.
Recency
MiniMax M2.1 is newer: released 12/22/2025 vs 8/27/2025.
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Frequently Asked Questions
Which is better for coding — Grok 4 Fast or MiniMax M2.1?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Grok 4 Fast or MiniMax M2.1?
Grok 4 Fast is cheaper for input: $0.20 per 1M tokens vs $0.30.
Which has a larger context window — Grok 4 Fast or MiniMax M2.1?
Grok 4 Fast supports a larger context: 2,000,000 tokens vs 1,000,000.
The Grok 4 Fast and MiniMax M2.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4 Fast or MiniMax M2.1 page. See also the complete list of AI model comparisons.