Home / Compare / DeepSeek V4 Flash 0731 vs Gemini 3.8 Flash

DeepSeek V4 Flash 0731 vs Gemini 3.8 Flash

For a typical chat reply (2,000 tokens in, 400 out), Gemini 3.8 Flash costs 18× as much as DeepSeek V4 Flash 0731: $3.00 against $0.17 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4 Flash 0731Gemini 3.8 Flash
Input, per 1M tokens$0.021$0.75
Output, per 1M tokens$0.32$3.75
Context window1.31M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0158$0.487
Chat reply (2,000 in, 400 out), per 1,000$0.17$3.00
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.328$7.88
Confidence signalyesno
Tool callingyesyes
BANKING77, correct of 400298331

Which one should carry your traffic?

If DeepSeek V4 Flash 0731 answers your requests as well as Gemini 3.8 Flash, moving that traffic saves 94% 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 Gemini 3.8 Flash.

DeepSeek V4 Flash 0731 profile · Gemini 3.8 Flash profile · Measure it on your traffic