Home / Compare / DeepSeek V4 Flash 0731 vs DeepSeek V4.1 Flash

DeepSeek V4 Flash 0731 vs DeepSeek V4.1 Flash

For a typical chat reply (2,000 tokens in, 400 out), DeepSeek V4.1 Flash costs 1.8× as much as DeepSeek V4 Flash 0731: $0.299 against $0.17 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4 Flash 0731DeepSeek V4.1 Flash
Input, per 1M tokens$0.021$0.0295
Output, per 1M tokens$0.32$0.60
Context window1.31M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0158$0.0237
Chat reply (2,000 in, 400 out), per 1,000$0.17$0.299
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.328$0.536
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400298316

Which one should carry your traffic?

If DeepSeek V4 Flash 0731 answers your requests as well as DeepSeek V4.1 Flash, moving that traffic saves 43% on chat-shaped requests. Averages cannot tell you whether it does for your requests. DeepSeek V4 Flash 0731 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to DeepSeek V4.1 Flash.

DeepSeek V4 Flash 0731 profile · DeepSeek V4.1 Flash profile · Measure it on your traffic