grok-4.5 vs mimo-v2.5-pro Benchmark Comparison
Direct benchmark comparison between grok-4.5 and mimo-v2.5-pro based on LMArena Elo and the latest 2026 API pricing.
Direct Technical & Pricing Comparison
| Frontier Model |
LMArena Elo |
API Cost (1M) |
Throughput |
| grok-4.5 |
1469 |
$0.000002 |
58 |
| mimo-v2.5-pro |
1468 |
$4.35e-7 |
91 |
*These models represent the Pareto Frontier (optimal cost-to-performance).*
Comparison Summary: These models are highly competitive, with a negligible Elo gap of only 1 points. The choice between them should be driven by specific API features or provider preference. Specifically, mimo-v2.5-pro is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.