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DeepSeek V4.1 Flash vs GLM 5.3

For a typical chat reply (2,000 tokens in, 400 out), GLM 5.3 costs 8.1× as much as DeepSeek V4.1 Flash: $2.41 against $0.299 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4.1 FlashGLM 5.3
Input, per 1M tokens$0.0295$0.325
Output, per 1M tokens$0.60$4.40
Context window1.05M1.31M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0237$0.239
Chat reply (2,000 in, 400 out), per 1,000$0.299$2.41
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.536$4.80
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400316not measured

Which one should carry your traffic?

If DeepSeek V4.1 Flash answers your requests as well as GLM 5.3, moving that traffic saves 88% 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 GLM 5.3.

DeepSeek V4.1 Flash profile · GLM 5.3 profile · Measure it on your traffic