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Grok 4.20 0309 v2 vs o1-preview

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

  • Grok 4.20 0309 v2 has the higher intelligence index (91.1 vs 57.3)
  • Grok 4.20 0309 v2 is cheaper ($2.00 vs $15.00 per 1M input)
  • Grok 4.20 0309 v2 is faster
Grok 4.20 0309 v2o1-preview
Intelligence index91.157.3
DeveloperxAIOpenAI
TypeLLMLLM
AccessAPI only
Context window128,000 tokens
Input price$2.00 / 1M$15.00 / 1M
Output price$6.00 / 1M$60.00 / 1M
Speed105 tok/s66 tok/s
ReleasedApril 7, 2026September 12, 2024
Parameters
Input modalities
Output modalities

Shared benchmarks

Grok 4.20 0309 v2
o1-preview
GPQA Diamond
91.1
73.3