gpt-oss-20b is 50.6× cheaper per million tokens (blended). DeepSeek Pro Latest has the larger context window (1,048,576 vs 131,072 tokens, 8.0×). gpt-oss-20b is open-weights; the other is not.

gpt-oss-20b vs DeepSeek Pro Latest

Live catalog fields. Best-in-row is highlighted.

gpt-oss-20bopen

OpenAI · openai__gpt-oss-20b

DeepSeek Pro Latest

~deepseek · ~deepseek__deepseek-pro-latest

Identity

Fieldopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
ProviderOpenAI~deepseek
Slugopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
Statuslivelive
Open weightsYesNo
License——
HuggingFaceopenai/gpt-oss-20b—

Quality

Fieldopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
Quality index (0–100)——

Cost

Fieldopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
Input $ / 1M tokens$0.03$0.10
Cached input $ / 1M$0.03$0.10
Output $ / 1M tokens$0.13$8.00

Context

Fieldopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
Max context tokens131,0721,048,576
Max output tokens117,964393,216

Modalities

Fieldopenai__gpt-oss-20b~deepseek__deepseek-pro-latest
Inputtexttext
Outputtexttext