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Granite 4.1 3B 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 31.4)
  • Granite 4.1 3B is cheaper ($0.00 vs $2.00 per 1M input)
Granite 4.1 3BGrok 4.20 0309
Intelligence index31.488.5
DeveloperIBMxAI
TypeLLMLLM
Access
Context window
Input price$0.00 / 1M$2.00 / 1M
Output price$0.00 / 1M$6.00 / 1M
Speed97 tok/s
ReleasedApril 29, 2026March 10, 2026
Parameters
Input modalities
Output modalities

Shared benchmarks

Granite 4.1 3B
Grok 4.20 0309
GPQA Diamond
31.4
88.5
Humanity’s Last Exam
3.4
30