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DeepSeek V4 Pro 0423 vs GPT-5 Mini

DeepSeek V4 Pro 0423 is cheaper on output tokens, while DeepSeek V4 Pro 0423 offers a larger context window. Choose DeepSeek V4 Pro 0423 or GPT-5 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecDeepSeek V4 Pro 0423GPT-5 Mini
ProviderDeepSeekOpenAI
Input / 1M tokens$0.51$0.25
Output / 1M tokens$1.02$2.00
Context window1M400K
Parameters1.6T—
Open weightsYesNo
ReleasedApr 2026Aug 2025
LMArena (Chatbot Arena) Elo score14511373
Epoch Capabilities Index score156145
LMArena WebDev Elo score1582—
GPQA Diamond score91.775.0
LiveBench score71.666.6
FrontierMath score—27.2
LMArena Vision Elo score—1202
SWE-bench Multilingual score—39.7
SWE-bench Verified score—59.8

FAQ

Is DeepSeek V4 Pro 0423 or GPT-5 Mini cheaper?

DeepSeek V4 Pro 0423 is cheaper on output tokens ($1.02 vs $2.00 per 1M).

Which has the larger context window, DeepSeek V4 Pro 0423 or GPT-5 Mini?

DeepSeek V4 Pro 0423 has the larger context window (1M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.