Ornith-1.5-35B-A3B-NVFP4 vs GPT-OSS-20B-NPU2

Specs, VRAM requirements and download trends — updated 29 October 2026.

ornith-ai · A · Open weights
Params
19.5 B
Context
—
30d
1.1 M
mit · commercial OK
FastFlowLM · B · Open weights
Params
20.0 B
Context
131,072
30d
140 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Ornith-1.5-35B-A3B-NVFP4 GPT-OSS-20B-NPU2
Parameters 19.5 B 20.0 B
Architecture Qwen3_5MoeForConditionalGeneration GptOssForCausalLM
Context length — 131,072
Licence mit apache-2.0
Commercial use Allowed Allowed
Languages — —
Downloads 30d 1,102,552 140,360
Downloads all time 3.1 M 812 K
Quantizations on the Hub SAFETENSORS —
Gated No No
First seen on the Hub 2026-08-18 2025-09-26

Download trend

Daily snapshots, last 78 days (25 Aug – 10 Nov)

1.2 M140 K
Ornith-1.5-35B-A3B-NVFP4 GPT-OSS-20B-NPU2

VRAM side by side

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

Ornith-1.5-35B-A3B-NVFP4 · fp16 29.2 GB / 24 GB
❌ Won’t fit

Adjacent comparisons