DeepSeek
DeepSeek V4 Flash
VS
OpenAI
GPT-5.5 Pro
Decision Recommendation
📊 Comparison Summary: DeepSeek V4 Flash and GPT-5.5 Pro present close characteristics. Review the specific benchmark scorelines below to determine which engine matches your needs.
Model Specs
DeepSeek V4 Flash
Benchmarks & Scores
Coding (swe-bench-pro)Winner (+)
49.1%Reasoning (gpqa-diamond)
80%Cost & Performance
Cost (per 1M tokens)385.7x cheaper
$0.17Input: $0.14 | Output: $0.28Speed1.5x faster
109.1 tpsContext Window
1M tokensModel Specs
GPT-5.5 Pro
Benchmarks & Scores
Coding (swe-bench-pro)
N/AReasoning (gpqa-diamond)Winner (+16.2%)
96.2%Cost & Performance
Cost (per 1M tokens)
$67.50Input: $30.00 | Output: $180.00Speed
74 tpsContext WindowLarger
1.05M tokensWant to customize weights or add more models?
Open our interactive dashboard where you can adjust your priority levels for speed, budget, or accuracy slider-bars and watch model rankings calculate dynamically.
Customize in Interactive Dashboard