NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 vs Beam-1.0-501B-A23B

Specs, VRAM requirements and download trends — updated 25 October 2026.

nvidia · A · Open weights
Params
560.5 B
Context
262,144
30d
1.1 M
reflection · B · Open weights
Params
501.3 B
Context
1,048,576
30d
4 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 Beam-1.0-501B-A23B
Deployment Open weights · also via API Open weights · also via API
Parameters 560.5 B 501.3 B
Architecture NemotronHForCausalLM BeamForCausalLM
Context length 262,144 1,048,576
Licence other apache-2.0
Commercial use Unknown Allowed
Languages 12 1
Downloads 30d 1,133,423 4,432
Downloads all time 2.2 M 4 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-06-03 2026-10-07
API input price / 1M tokens $0.60 $0.25
API output price / 1M tokens $2.40 $1.00
Est. cost per 1M input + 1M output tokens $3.00 $1.25
Cached input / 1M tokens $0.12 $0.05
AA Intelligence Index 22.9 —
AA Coding Index 49.3 —
AA Agentic Index 20.1 —
Max output tokens 182,520 131,072
API providers 3 6
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 $3.00
Beam-1.0-501B-A23B $1.25

Beam-1.0-501B-A23B is 2.4× cheaper at list price.

Download trend

Daily snapshots, last 90 days (28 Jul – 25 Oct)

1.1 M2 K
NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 Beam-1.0-501B-A23B

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 · fp16 @ 256K ctx 3,924.2 GB / 24 GB
❌ Won’t fit
Beam-1.0-501B-A23B · fp16 @ 1024K ctx 10,727.8 GB / 24 GB
❌ Won’t fit

Adjacent comparisons