gpt-oss-20b vs Qwen3-Coder-Next

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
79.7 B
Context
262,144
30d
426 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b Qwen3-Coder-Next
Deployment Open weights · also via API Open weights · also via API
Parameters 21.5 B 79.7 B
Architecture GptOssForCausalLM Qwen3NextForCausalLM
Context length 131,072 262,144
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages — —
Downloads 30d 5,830,063 426,195
Downloads all time 108.5 M 7.5 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-01-30
API input price / 1M tokens $0.03 $0.12
API output price / 1M tokens $0.13 $0.80
Est. cost per 1M input + 1M output tokens $0.16 $0.92
Cached input / 1M tokens $0.03 $0.07
AA Intelligence Index — —
AA Coding Index 20.7 36.2
AA Agentic Index 1.2 0.9
Max output tokens 117,964 235,929
API providers 10 1
Tool calling Yes Yes
Reasoning mode Yes No

API cost

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

gpt-oss-20b $0.16
Qwen3-Coder-Next $0.92

gpt-oss-20b is 5.8× cheaper at list price.

Download trend

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

8.1 M385 K
gpt-oss-20b Qwen3-Coder-Next

VRAM side by side

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

gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit
Qwen3-Coder-Next · fp16 @ 256K ctx 558.2 GB / 24 GB
❌ Won’t fit

Adjacent comparisons