gpt-oss-20b vs Qwen3-14B

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

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

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b Qwen3-14B
Deployment Open weights · also via API Open weights · also via API
Parameters 21.5 B 14.8 B
Architecture GptOssForCausalLM Qwen3ForCausalLM
Context length 131,072 40,960
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages — —
Downloads 30d 5,830,063 12,904,408
Downloads all time 108.5 M 46.1 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2025-04-27
API input price / 1M tokens $0.03 $0.10
API output price / 1M tokens $0.13 $0.22
Est. cost per 1M input + 1M output tokens $0.16 $0.32
Cached input / 1M tokens $0.03 —
AA Intelligence Index — —
AA Coding Index 20.7 13.8
AA Agentic Index 1.2 0.9
Max output tokens 117,964 36,864
API providers 10 2
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

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

gpt-oss-20b $0.16
Qwen3-14B $0.32

gpt-oss-20b is 2.0× cheaper at list price.

Download trend

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

13.0 M1.6 M
gpt-oss-20b Qwen3-14B

VRAM side by side

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

Qwen3-14B · fp16 35.2 GB / 24 GB
❌ Won’t fit
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons