Home / Compare / DeepSeek V4 Flash 0731 vs gpt-oss-20b

DeepSeek V4 Flash 0731 vs gpt-oss-20b

For a typical chat reply (2,000 tokens in, 400 out), DeepSeek V4 Flash 0731 costs 2.4× as much as gpt-oss-20b: $0.17 against $0.072 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4 Flash 0731gpt-oss-20b
Input, per 1M tokens$0.021$0.018
Output, per 1M tokens$0.32$0.09
Context window1.31M131K
Classification or routing (600 tokens in, 10 out), per 1,000$0.0158$0.0117
Chat reply (2,000 in, 400 out), per 1,000$0.17$0.072
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.328$0.189
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400298313

Which one should carry your traffic?

If gpt-oss-20b answers your requests as well as DeepSeek V4 Flash 0731, moving that traffic saves 58% on chat-shaped requests. Averages cannot tell you whether it does for your requests. gpt-oss-20b exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to DeepSeek V4 Flash 0731.

DeepSeek V4 Flash 0731 profile · gpt-oss-20b profile · Measure it on your traffic