Grok 4 Fast vs MiMo-V2-Flash: Specs & Benchmark Comparison
| Characteristic | Grok 4 Fast | MiMo-V2-Flash |
|---|---|---|
| Company | xAI | Xiaomi |
| Release Date | August 27, 2025 | December 15, 2025 |
| Parameters | — | 309B |
| Multimodal | Yes | No |
| Context (input) | 2.0M | — |
| Context (output) | 30K | — |
| Input Price / 1M | $0.20 | — |
| Output Price / 1M | $0.50 | — |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| HMMT 2025 | 0.9 | 0.8 |
| GPQA | 0.9 | 0.8 |
| AIME 2025 | 0.9 | 0.9 |
Visual Benchmark Comparison
Grok 4 Fast
MiMo-V2-Flash
HMMT 20250.9 vs 0.8
0.9
0.8
GPQA0.9 vs 0.8
0.9
0.8
AIME 20250.9 vs 0.9
0.9
0.9
Verdict
MiMo-V2-Flash leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Grok 4 Fast — 0.8, MiMo-V2-Flash — 0.9.
Recency
MiMo-V2-Flash is newer: released 12/15/2025 vs 8/27/2025.
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Frequently Asked Questions
Which is better for coding — Grok 4 Fast or MiMo-V2-Flash?
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 MiMo-V2-Flash?
API pricing data is available on the individual model pages.
Which has a larger context window — Grok 4 Fast or MiMo-V2-Flash?
Context window data is available on the individual model pages.
The Grok 4 Fast and MiMo-V2-Flash 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 MiMo-V2-Flash page. See also the complete list of AI model comparisons.