Nemotron 3 Ultra nemotron-3-ultra-550b-a55b
nvidia · nvidia
unranked — no quality signals yet
- params
- 560.5B
- arch
- moe
- context
- 256k
- license
- other open weights
- released
- Jun 2026
- downloads/30d
- 1.2M
# architecture
- d_model
- 8192
- heads
- 64q / 2kv
- head dim
- 128
- experts
- top-22 of 512 + 1 shared
- vocab
- 131072
- family
- nemotron_h
signal path of one layer, generated from the registry's structured fields — dimension lines quote the model's real numbers; an MoE trace forks at the router, a dense trace runs straight through. Geometry fields come from the repo's config.json.
# why ranked
Overall: provisional — score 44.0 ● low — a single signal; treat with caution
provisional: too few independent signals for a numbered position — the score is shown, but this model sorts after every ranked model.
| signal | weight | input (0–100) |
|---|---|---|
| aa_intelligence | 0.70 | — |
| bench_composite | 0.30 | 44.0 |
benchmark panel evidence:
| complete panel | score (0–100) |
|---|---|
| browsecomp-v1 | 44.0 |
missing signals are dropped and the remaining weights renormalized — never imputed.
# trend
# benchmarks
# where to run
| provider | quant | ctx | $/M in | $/M out | $/M cache | price src | tps | uptime | ✓ |
|---|---|---|---|---|---|---|---|---|---|
| Nebius | — | — | — | — | nebius | — | — | ✓ | |
| Nvidia | 1024k | — | — | — | via requesty | — | — | ||
| DeepInfra | fp4 | 256k | $0.40 | $1.76 | $0.08 | via openrouter | — | 100.0% | |
| DeepInfra | fp4 | 256k | $0.50 | $2.20 | $0.10 | via openrouter | — | 99.9% | |
| BaseTen | fp4 | 202k | $0.60 | $2.40 | $0.12 | via openrouter | — | 99.8% | |
| BaseTen | fp4 | 202k | $0.60 | $2.40 | $0.12 | via openrouter | — | 99.9% | |
| Venice | fp8 | 250k | $0.62 | $3.12 | $0.19 | via openrouter | — | 99.7% | |
| Together | 512k | $0.60 | $3.60 | $0.20 | via modelsdev | — | — |
sorted by blended price ((3·input + output) / 4 per 1M) · ✓ = the provider's own catalog confirms the offer · "via …" prices are what the aggregator routing the offer charges, not the provider's own list price
source aliases
- llmstats
nemotron-3-ultra-550b-a55b- openrouter
nvidia/nemotron-3-ultra-550b-a55b