DeepSeek V4 Flash 0731 vs Nemotron 3.5 Lightning
For a typical chat reply (2,000 tokens in, 400 out), Nemotron 3.5 Lightning costs 1.4× as much as DeepSeek V4 Flash 0731: $0.24 against $0.17 per 1,000 requests at list price on 2026-09-28.
| DeepSeek V4 Flash 0731 | Nemotron 3.5 Lightning | |
|---|---|---|
| Input, per 1M tokens | $0.021 | $0.08 |
| Output, per 1M tokens | $0.32 | $0.20 |
| Context window | 1.31M | 1M |
| Classification or routing (600 tokens in, 10 out), per 1,000 | $0.0158 | $0.05 |
| Chat reply (2,000 in, 400 out), per 1,000 | $0.17 | $0.24 |
| Retrieval-augmented answer (8,000 in, 500 out), per 1,000 | $0.328 | $0.74 |
| Confidence signal | yes | yes |
| Tool calling | yes | yes |
| BANKING77, correct of 400 | 298 | 255 |
Which one should carry your traffic?
If DeepSeek V4 Flash 0731 answers your requests as well as Nemotron 3.5 Lightning, moving that traffic saves 29% on chat-shaped requests. Averages cannot tell you whether it does for your requests. DeepSeek V4 Flash 0731 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Nemotron 3.5 Lightning.
DeepSeek V4 Flash 0731 profile · Nemotron 3.5 Lightning profile · Measure it on your traffic