Grok 4 Fast Reasoning
xAI
Highlights
Top benchmark results for x-ai/grok-4-fast-reasoning-2025-09-20.
0.05#2
Benchmark table
Detailed scores across tracked benchmarks.
| Benchmark | Category | Top Score | Info | Self Reported | Source |
|---|---|---|---|---|---|
| MathArena Apex | - | 0.05 | - | No | Source |
Benchmark comparisons
Use the selector to switch benchmarks and see how this model stacks up against its closest competitors.
MathArena Apex
Compare this model with the leading peers for the selected benchmark.
Benchmark
0.05
Rank #2/13
13 models
Showing 11 models around the selected model (out of 13 total).