AI model comparison
Nemotron 3.5 Lightning vs DeepSeek V4 Flash 0731
Side by side comparison of Nemotron 3.5 Lightning and DeepSeek V4 Flash 0731 on pricing, benchmark scores, context window, and more.
NVIDIA Nemotron 3.5 Lightning is an open mixture-of-experts model from NVIDIA, with 3B active parameters out of 30B total.
- Input / 1M
- $0.07
- Output / 1M
- $0.20
- Context
- 262K
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
- Input / 1M
- $0.12
- Output / 1M
- $0.24
- Context
- 1.05M
Comparing image generators? Compare image models
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Nemotron 3.5 Lightning
1.5x cheaper for a typical chat
Higher intelligence score
Not available
Not enough benchmark data
Larger context window
DeepSeek V4 Flash 0731
1.05M vs 262K tokens
Newer release
Nemotron 3.5 Lightning
Released August 11, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
DeepSeek V4 Flash 0731Not availableCoding index
DeepSeek V4 Flash 073169.1Agentic index
DeepSeek V4 Flash 073141Pricing
Nemotron 3.5 Lightning vs DeepSeek V4 Flash 0731 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Input tokensPer 1M tokens | $0.07 | $0.12 |
| Output tokensPer 1M tokens | $0.20 | $0.24 |
| Cached input (read)Per 1M tokens | $0.04 | $0.02 |
| Cache writePer 1M tokens | Not available | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
DeepSeek V4 Flash 0731$0.36Coding task
30K in, 4K out
DeepSeek V4 Flash 0731$4.52$1.67 cachedLong document summary
150K in, 2K out
DeepSeek V4 Flash 0731$18.33$4.05 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Context window | 262K tokens | 1.05M tokens |
| Max output | 236K tokens | 944K tokens |
| Input types | Text | Text |
| Output types | Text | Text |
| Reasoning effort levels | Not available | Max, High, Low, None |
| Default reasoning effort | Not available | High |
| Release date | August 11, 2026 | July 31, 2026 |
Features
Supported features
API features available for each model.
| Metric | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
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Our take
Nemotron 3.5 Lightning is 1.5x cheaper for a typical chat. DeepSeek V4 Flash 0731 has the larger context window (1.05M vs 262K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Nemotron 3.5 Lightning or DeepSeek V4 Flash 0731 cheaper?
Nemotron 3.5 Lightning is cheaper for a typical chat (2K input tokens and 500 output tokens). Nemotron 3.5 Lightning costs $0.07 per 1M input tokens and $0.20 per 1M output tokens, while DeepSeek V4 Flash 0731 costs $0.12 per 1M input tokens and $0.24 per 1M output tokens.
Which has a bigger context window, Nemotron 3.5 Lightning or DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 supports up to 1.05M tokens of context, compared with 262K for Nemotron 3.5 Lightning.
Can I use Nemotron 3.5 Lightning and DeepSeek V4 Flash 0731 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Nemotron 3.5 Lightning and DeepSeek V4 Flash 0731 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Nemotron 3.5 Lightning and DeepSeek V4 Flash 0731 at the same time. Compare the answers side by side and keep the best one.