gpt-oss-120b vs Ornith-1.5-397B-FP8
Specs, VRAM requirements and download trends — updated 21 September 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | gpt-oss-120b | Ornith-1.5-397B-FP8 |
|---|---|---|
| Parameters | 120.4 B | 403.4 B |
| Architecture | GptOssForCausalLM | Qwen3_5MoeForConditionalGeneration |
| Context length | 131,072 | — |
| Licence | apache-2.0 | mit |
| Commercial use | Allowed | Allowed |
| Languages | — | — |
| Downloads 30d | 5,008,854 | 381,537 |
| Downloads all time | 57.0 M | 383 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-08-04 | 2026-08-18 |
Download trend
Daily snapshots, last 56 days (28 Jul – 21 Sep)
5.5 M193 K
gpt-oss-120b
Ornith-1.5-397B-FP8
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
gpt-oss-120b · fp16 @ 128K ctx
433.0 GB / 24 GB
Ornith-1.5-397B-FP8 · fp16
521.2 GB / 24 GB