xAI · Grok

Grok 4 Fast

Current · Released: March 1, 2026

Context window
2.000.000 tokens
Max output
32.768 tokens
Price input / 1M tokens
$0.20
Price output / 1M tokens
$0.50

Capabilities

  • Tekst
  • Snel

Benchmark scores

AIME 2025
92.0
HMMT 2025
93.3
GPQA Diamond
85.7
LiveCodeBench
80.0

What do these benchmarks mean? →

Notes

Budget variant with 2M context window. Source: openrouter.ai.