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DeepSeek V4.1 Flash vs Nemotron 3.5 Lightning

For a typical chat reply (2,000 tokens in, 400 out), DeepSeek V4.1 Flash costs 1.2× as much as Nemotron 3.5 Lightning: $0.299 against $0.24 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4.1 FlashNemotron 3.5 Lightning
Input, per 1M tokens$0.0295$0.08
Output, per 1M tokens$0.60$0.20
Context window1.05M1M
Classification or routing (600 tokens in, 10 out), per 1,000$0.0237$0.05
Chat reply (2,000 in, 400 out), per 1,000$0.299$0.24
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.536$0.74
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400316255

Which one should carry your traffic?

If Nemotron 3.5 Lightning answers your requests as well as DeepSeek V4.1 Flash, moving that traffic saves 20% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Nemotron 3.5 Lightning exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to DeepSeek V4.1 Flash.

DeepSeek V4.1 Flash profile · Nemotron 3.5 Lightning profile · Measure it on your traffic