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DeepSeek V4.1 Flash vs Qwen3.8 Flash

For a typical chat reply (2,000 tokens in, 400 out), Qwen3.8 Flash costs 1.6× as much as DeepSeek V4.1 Flash: $0.488 against $0.299 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4.1 FlashQwen3.8 Flash
Input, per 1M tokens$0.0295$0.15
Output, per 1M tokens$0.60$0.47
Context window1.05M1M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0237$0.0947
Chat reply (2,000 in, 400 out), per 1,000$0.299$0.488
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.536$1.44
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400316316

Which one should carry your traffic?

If DeepSeek V4.1 Flash answers your requests as well as Qwen3.8 Flash, moving that traffic saves 39% 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 Qwen3.8 Flash.

DeepSeek V4.1 Flash profile · Qwen3.8 Flash profile · Measure it on your traffic