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DeepSeek-V4-Pro-0813 vs Grok 4.1 Fast

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DeepSeek-V4-Pro-0813Grok 4.1 Fast
AttributeDeepSeek-V4-Pro-0813DeepSeek · 1 in the newsGrok 4.1 FastxAI
Scores
Intelligence (ECI)155
Coding7634
Math8848
Reasoning & Knowledge6942
Agentic & Tools6742
Specifications
DeveloperDeepSeekxAI
FamilyDeepSeekGrok
ReleasedAug 13, 2026Nov 19, 2025
Parameters1.6T
AvailabilityOpen weights (unrestricted)API access
Context window1M
Price — $/M input$0.58
Price — $/M output$1.74
Inputstext
Outputstext
Benchmarks
AIME 2024/202599%89%
APEX47%13%
ARC-AGI91%
ARC-AGI-261%
GPQA Diamond92%85%
Humanity's Last Exam41%19%
SciCode51%44%
SimpleQA Verified53%
WebDev Arena15811223
WeirdML66%
LiveCodeBench82%
MMLU-Pro85%
SimpleBench56%
τ²-bench93%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.