Compare / head-to-head
Grok 4 Fast ReasoningvsMinistral 3 8B
Grok 4 Fast Reasoning leads 2 of 2 shared benchmarks. Ministral 3 8B is 2.3x cheaper per token. Grok 4 Fast Reasoning has the larger context window (2M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
2 – 0
Grok 4 Fast Reasoning leads
Cheaper per token
Ministral 3 8B
2.3x cheaper, input + output
Larger context
Grok 4 Fast Reasoning
2M tokens
Provider uptime (30d)
— · 100%
xAI · Mistral AI
Grok 4 Fast Reasoning
xAI · released 2025-09-19
text
Ministral 3 8B
Mistral AI · released 2025-12-02
textvision
Quality
Benchmark matrix
2 shared · 10 only Grok 4 Fast Reasoning · 1 only Ministral 3 8B| Benchmark | Grok 4 Fast Reasoning | Ministral 3 8B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 2 | ||||
| GPQA Diamond | 85.7% ↗ | 66.8% ↗ | +18.9 pt | Grok 4 Fast Reasoning |
| AIME 2025 | 92% ↗ | 78.7% ↗ | +13.3 pt | Grok 4 Fast Reasoning |
| Only Grok 4 Fast Reasoning reports · 10 | ||||
| Humanity's Last Exam (no tools) | 20% ↗ | not reported | — | — |
| BrowseComp | 44.9% ↗ | not reported | — | — |
| BrowseComp (zh) | 51.2% ↗ | not reported | — | — |
| HMMT 2025 (no tools) | 93.3% ↗ | not reported | — | — |
| LiveCodeBench (Jan-May) | 80% ↗ | not reported | — | — |
| Reka Research Eval | 66% ↗ | not reported | — | — |
| Search Arena Elo | 1163 ↗ | not reported | — | — |
| SimpleQA | 95% ↗ | not reported | — | — |
| X Bench Deepsearch (zh) | 74% ↗ | not reported | — | — |
| X Browse | 58% ↗ | not reported | — | — |
| Only Ministral 3 8B reports · 1 | ||||
| LiveCodeBench | not reported | 61.6% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Grok 4 Fast Reasoning minus Ministral 3 8B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Grok 4 Fast Reasoning | Ministral 3 8B | Edge |
|---|---|---|---|
| Context window | 2M tokens | 256K tokens | Grok 4 Fast Reasoning |
| Max output | — | — | — |
| Input price / 1M | $0.2 ↗ | $0.15 ↗ | Ministral 3 8B |
| Output price / 1M | $0.5 ↗ | $0.15 ↗ | Ministral 3 8B |
| Cached input / 1M | $0.05 ↗ | $0.015 ↗ | Ministral 3 8B |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.7 | $0.3 | Ministral 3 8B |
| Modalities | text | text · vision | Ministral 3 8B |
| Released | 2025-09-19 | 2025-12-02 | — |
| Cited benchmark scores | 12 | 3 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Grok 4 Fast Reasoning vs …
Models sharing the most benchmarksMore matchups
Ministral 3 8B vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Grok 4 Fast Reasoning and Ministral 3 8B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.