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DeepSeek V4 Flash 0731 vs GPT-6 Astra

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DeepSeek V4 Flash 0731GPT-6 Astra
AttributeDeepSeek V4 Flash 0731DeepSeek · 3 in the newsGPT-6 AstraOpenAI · 17 in the news
Scores
Intelligence (ECI)154169
Coding7695
Math6896
Reasoning & Knowledge5899
Agentic & Tools96
Specifications
DeveloperDeepSeekOpenAI
FamilyDeepSeekGPT
ReleasedJul 31, 2026Sep 3, 2026
Parameters
AvailabilityOpen weights (unrestricted)API access
Context window1.3M1.1M
Price — $/M input$0.04$10.00
Price — $/M output$0.16$50.00
Inputstextfile, image, text
Outputstexttext
Benchmarks
AIME 2024/202594%100%
ARC-AGI89%99%
ARC-AGI-261%95%
GPQA Diamond91%96%
Humanity's Last Exam39%55%
SciCode50%56%
SimpleBench61%
SimpleQA Verified34%76%
WebDev Arena15791797
WeirdML63%93%
APEX47%

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.