Head to head · 2026-09-01
OpenAI: GPT-5.6 Luna Pro vs 
DeepSeek: DeepSeek V4 Flash 0731
Data source
Token share
OpenAI: GPT-5.6 Luna Pro
0.36%
DeepSeek: DeepSeek V4 Flash 0731
10.09%
30d Δ
OpenAI: GPT-5.6 Luna Pro
-0.33pp
DeepSeek: DeepSeek V4 Flash 0731
+0.31pp
Price — $ / M output
OpenAI: GPT-5.6 Luna Pro
$1.20
DeepSeek: DeepSeek V4 Flash 0731
$0.18
Context window
OpenAI: GPT-5.6 Luna Pro
1050k
DeepSeek: DeepSeek V4 Flash 0731
1311k
Share of tokens over time
Detail pages: OpenAI: GPT-5.6 Luna Pro · DeepSeek: DeepSeek V4 Flash 0731