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DeepSeek-V3.2 vs GPT-5.5
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Scores
Intelligence (ECI)146159
Coding2789
Math3697
Reasoning & Knowledge2691
Agentic & Tools2995
Specifications
DeveloperDeepSeekOpenAI
FamilyDeepSeekGPT
ReleasedDec 1, 2025Apr 23, 2026
Parameters——
AvailabilityOpen weights (unrestricted)API access
Context window131K1.1M
Price — $/M input$0.23$5.00
Price — $/M output$0.34$30.00
Inputstextfile, image, text
Outputstexttext
Benchmarks
AIME 2024/202588%100%
APEX7%38%
ARC-AGI57%95%
ARC-AGI-24%85%
FrontierMath22%52%
FrontierMath Tier 42%35%
GPQA Diamond83%94%
SimpleBench53%69%
SimpleQA Verified28%63%
Terminal-Bench40%85%
WebDev Arena12861505
WeirdML47%85%
GSO (code optimization)—40%
SWE-bench Verified—81%
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.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.