MiniMax M3 vs Grok 4.5
Detailed comparison of API pricing, technical specifications, and benchmark scores. Updated 2026-06-29.
Cost at a Glance
Grok 4.5 is 5.6× more expensive than MiniMax M3 — switching could save 82.3% on your monthly API bill.
At 5M input + 2M output tokens per month:
Choosing MiniMax M3 could save you $18.10/mo
Price Comparison (per 1M tokens)
| Metric | MiniMax M3 | Grok 4.5 |
|---|---|---|
| Input (per 1M tokens) | $0.30 | $2.00 |
| Output (per 1M tokens) | $1.20 | $6.00 |
| Cache Write (per 1M tokens) | — | — |
| Cache Read (per 1M tokens) | — | $0.50 |
| Batch Input (per 1M tokens) | — | — |
| Batch Output (per 1M tokens) | — | — |
Prices are per 1 million tokens. Actual costs depend on your monthly token volume. Use the calculator →
Specifications
| Spec | MiniMax M3 | Grok 4.5 |
|---|---|---|
| Context Window | 1M | 500K |
| Max Output Tokens | 64K | 128K |
| Knowledge Cutoff | 2026-04 | 2026-05 |
| Modalities | Text | Text, Image, Video |
| Prompt Caching | No | Yes |
| Batch API | No | No |
| Thinking / Reasoning | No | Yes |
Benchmark Scores
| Benchmark | MiniMax M3 | Grok 4.5 |
|---|---|---|
| SWE-bench Verified | 80.5 | 80.0 |
| MMLU-Pro | 82.5 | 84.0 |
| HumanEval | 92.0 | 92.0 |
Benchmark scores from official provider reports. Higher is better. Missing scores indicate the provider has not published that benchmark yet.
Use Cases
MiniMax M3
Grok 4.5
About the Providers
MiniMax M3 is developed by MiniMax. Grok 4.5 is developed by SpaceXAI. This is a cross-provider comparison between MiniMax and SpaceXAI models. For the most up-to-date pricing, always check the official API documentation from each provider.