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DeepSeek V4.1 Flash vs Nemotron 3 Ultra

For a typical chat reply (2,000 tokens in, 400 out), Nemotron 3 Ultra costs 7.2× as much as DeepSeek V4.1 Flash: $2.16 against $0.299 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4.1 FlashNemotron 3 Ultra
Input, per 1M tokens$0.0295$0.60
Output, per 1M tokens$0.60$2.40
Context window1.05M262K
Classification or routing (600 tokens in, 10 out), per 1,000$0.0237$0.384
Chat reply (2,000 in, 400 out), per 1,000$0.299$2.16
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.536$6.00
Confidence signalyesno
Tool callingyesyes
BANKING77, correct of 400316not measured

Which one should carry your traffic?

If DeepSeek V4.1 Flash answers your requests as well as Nemotron 3 Ultra, moving that traffic saves 86% 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 Nemotron 3 Ultra.

DeepSeek V4.1 Flash profile · Nemotron 3 Ultra profile · Measure it on your traffic