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DeepSeek-R1-0528 vs Grok 4.20 0309

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

  • Grok 4.20 0309 has the higher intelligence index (88.5 vs 63.3)
  • DeepSeek-R1-0528 is cheaper ($0.55 vs $2.00 per 1M input)
  • Grok 4.20 0309 is faster
DeepSeek-R1-0528Grok 4.20 0309
Intelligence index63.388.5
DeveloperDeepSeekxAI
TypeLLMLLM
AccessOpen weights
Context window131,072 tokens
Input price$0.55 / 1M$2.00 / 1M
Output price$2.19 / 1M$6.00 / 1M
Speed45 tok/s97 tok/s
ReleasedMay 28, 2025March 10, 2026
Parameters671000000000
Input modalities
Output modalities

Shared benchmarks

DeepSeek-R1-0528
Grok 4.20 0309
GPQA Diamond
81
88.5
Humanity’s Last Exam
17.7
30