Qwen3-8B vs gpt-oss-20b

Specs, VRAM requirements and download trends — updated 10 November 2026.

Qwen · A · Open weights
Params
8.2 B
Context
40,960
30d
6.8 M
apache-2.0 · commercial OK
openai · B · Open weights
Params
21.5 B
Context
131,072
30d
5.8 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3-8B gpt-oss-20b
Deployment Open weights Open weights · also via API
Parameters 8.2 B 21.5 B
Architecture Qwen3ForCausalLM GptOssForCausalLM
Context length 40,960 131,072
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages — —
Downloads 30d 6,837,564 5,830,063
Downloads all time 137.6 M 108.5 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-04-27 2025-08-04
API input price / 1M tokens not on OpenRouter $0.03
API output price / 1M tokens not on OpenRouter $0.13
Est. cost per 1M input + 1M output tokens not on OpenRouter $0.16
Cached input / 1M tokens not on OpenRouter $0.03
AA Intelligence Index not on OpenRouter —
AA Coding Index not on OpenRouter 20.7
AA Agentic Index not on OpenRouter 1.2
Max output tokens not on OpenRouter 117,964
API providers not on OpenRouter 10
Tool calling not on OpenRouter Yes
Reasoning mode not on OpenRouter Yes

API cost

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

gpt-oss-20b $0.16

Download trend

Daily snapshots, last 90 days (13 Aug – 10 Nov)

16.4 M5.7 M
Qwen3-8B gpt-oss-20b

VRAM side by side

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

Qwen3-8B · fp16 19.7 GB / 24 GB
⚠️ Tight — reduce context
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons