Home / Compare / DeepSeek V4.1 Flash vs Gemini 3.5 Flash Lite

DeepSeek V4.1 Flash vs Gemini 3.5 Flash Lite

For a typical chat reply (2,000 tokens in, 400 out), Gemini 3.5 Flash Lite costs 5.4× as much as DeepSeek V4.1 Flash: $1.60 against $0.299 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4.1 FlashGemini 3.5 Flash Lite
Input, per 1M tokens$0.0295$0.30
Output, per 1M tokens$0.60$2.50
Context window1.05M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0237$0.205
Chat reply (2,000 in, 400 out), per 1,000$0.299$1.60
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.536$3.65
Confidence signalyesno
Tool callingyesyes
BANKING77, correct of 400316305

Which one should carry your traffic?

If DeepSeek V4.1 Flash answers your requests as well as Gemini 3.5 Flash Lite, moving that traffic saves 81% on chat-shaped requests. Averages cannot tell you whether it does for your requests. DeepSeek V4.1 Flash exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Gemini 3.5 Flash Lite.

DeepSeek V4.1 Flash profile · Gemini 3.5 Flash Lite profile · Measure it on your traffic