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Nemotron 3 Ultra vs GLM 5.3 Flash

For a typical chat reply (2,000 tokens in, 400 out), Nemotron 3 Ultra costs 4.3× as much as GLM 5.3 Flash: $2.16 against $0.50 per 1,000 requests at list price on 2026-09-28.

Nemotron 3 UltraGLM 5.3 Flash
Input, per 1M tokens$0.60$0.15
Output, per 1M tokens$2.40$0.50
Context window262K1.31M
Classification or routing (600 tokens in, 10 out), per 1,000$0.384$0.095
Chat reply (2,000 in, 400 out), per 1,000$2.16$0.50
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$6.00$1.45
Confidence signalnoyes
Tool callingyesyes
BANKING77, correct of 400not measured320

Which one should carry your traffic?

If GLM 5.3 Flash answers your requests as well as Nemotron 3 Ultra, moving that traffic saves 77% on chat-shaped requests. Averages cannot tell you whether it does for your requests. GLM 5.3 Flash exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Nemotron 3 Ultra.

Nemotron 3 Ultra profile · GLM 5.3 Flash profile · Measure it on your traffic