gpt-oss-20b vs Llama-2-13b-chat-hf
Specs, VRAM requirements and download trends — updated 6 August 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | gpt-oss-20b | Llama-2-13b-chat-hf |
|---|---|---|
| Parameters | 21.5 B | 13.0 B |
| Architecture | GptOssForCausalLM | LlamaForCausalLM |
| Context length | 131,072 | — |
| Licence | apache-2.0 | llama2 |
| Commercial use | Allowed | Conditional |
| Languages | — | 1 |
| Downloads 30d | 8,616,555 | 215,883 |
| Downloads all time | 87.8 M | 15.9 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | Yes — accept licence |
| First seen on the Hub | 2025-08-04 | 2023-07-13 |
Download trend
Daily snapshots, last 10 days (28 Jul – 6 Aug)
8.6 M208 K
gpt-oss-20b
Llama-2-13b-chat-hf
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Llama-2-13b-chat-hf · fp16
31.1 GB / 24 GB
gpt-oss-20b · fp16 @ 128K ctx
82.4 GB / 24 GB