Head to head · 2026-09-01
OpenAI: gpt-oss-20b vs 
DeepSeek: DeepSeek V4 Flash 0731
Data source
Token share
OpenAI: gpt-oss-20b
0.43%
DeepSeek: DeepSeek V4 Flash 0731
10.09%
30d Δ
OpenAI: gpt-oss-20b
+0.07pp
DeepSeek: DeepSeek V4 Flash 0731
+0.31pp
Price — $ / M output
OpenAI: gpt-oss-20b
$0.13
DeepSeek: DeepSeek V4 Flash 0731
$0.18
Context window
OpenAI: gpt-oss-20b
131k
DeepSeek: DeepSeek V4 Flash 0731
1311k
Share of tokens over time
Detail pages: OpenAI: gpt-oss-20b · DeepSeek: DeepSeek V4 Flash 0731