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Granite 4.0 H Small vs Grok 4.20 0309

IBM vs xAI — benchmarks, pricing, and capabilities side by side.

  • Grok 4.20 0309 has the higher intelligence index (88.5 vs 35.7)
  • Granite 4.0 H Small is cheaper ($0.10 vs $2.00 per 1M input)
  • Granite 4.0 H Small is faster
Granite 4.0 H SmallGrok 4.20 0309
Intelligence index35.788.5
DeveloperIBMxAI
TypeLLMLLM
Access
Context window
Input price$0.10 / 1M$2.00 / 1M
Output price$0.30 / 1M$6.00 / 1M
Speed524 tok/s97 tok/s
ReleasedSeptember 22, 2025March 10, 2026
Parameters
Input modalities
Output modalities

Shared benchmarks

Granite 4.0 H Small
Grok 4.20 0309
GPQA Diamond
41.6
88.5
Humanity’s Last Exam
3.7
30