DeepSeek-V4-FlashvsLlama Nemotron Ultra 253B
DeepSeek-V4-Flash | Llama Nemotron Ultra 253B | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | — | 253B |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.0679DigitalOcean | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $0.168DigitalOcean | — |
| Benchmarks | ||
LiveCodeBenchCompetitive coding — Coding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | 91.6% | 66.3% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 88.1% | 76% |
| BenchmarksPublished by one model only | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 18% | — |
| Overview | ||
| Company | DeepSeek | NVIDIA |
| Release date | Apr 24 2026 | Apr 8 2025 |
| Access | Open Weight | Open Weight |
Other comparisons
Frequently asked questions
DeepSeek-V4-Flash leads Llama Nemotron Ultra 253B on 2 of the 2 benchmarks they both report (LiveCodeBench, GPQA Diamond). Llama Nemotron Ultra 253B shipped 381 days before DeepSeek-V4-Flash, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On LiveCodeBench, DeepSeek-V4-Flash leads at 91.6% vs Llama Nemotron Ultra 253B at 66.3%. On GPQA Diamond, DeepSeek-V4-Flash leads at 88.1% vs Llama Nemotron Ultra 253B at 76%.
DeepSeek-V4-Flash was released by DeepSeek on Apr 24 2026.
Llama Nemotron Ultra 253B was released by NVIDIA on Apr 8 2025.
DeepSeek-V4-Flash leads on LiveCodeBench — DeepSeek-V4-Flash 91.6% vs Llama Nemotron Ultra 253B 66.3%.
DeepSeek-V4-Flash leads on GPQA Diamond — DeepSeek-V4-Flash 88.1% vs Llama Nemotron Ultra 253B 76%.