gpt-oss-20b vs EXAONE-3.5-7.8B-Instruct

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
LGAI-EXAONE · B · Open weights
Params
7.8 B
Context
32,768
30d
411 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b EXAONE-3.5-7.8B-Instruct
Deployment Open weights · also via API Open weights
Parameters 21.5 B 7.8 B
Architecture GptOssForCausalLM ExaoneForCausalLM
Context length 131,072 32,768
Licence apache-2.0 other
Commercial use Allowed Unknown
Languages — 2
Downloads 30d 5,830,063 410,768
Downloads all time 108.5 M 4.3 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2024-12-01
API input price / 1M tokens $0.03 not on OpenRouter
API output price / 1M tokens $0.13 not on OpenRouter
Est. cost per 1M input + 1M output tokens $0.16 not on OpenRouter
Cached input / 1M tokens $0.03 not on OpenRouter
AA Intelligence Index — not on OpenRouter
AA Coding Index 20.7 not on OpenRouter
AA Agentic Index 1.2 not on OpenRouter
Max output tokens 117,964 not on OpenRouter
API providers 10 not on OpenRouter
Tool calling Yes not on OpenRouter
Reasoning mode Yes not on OpenRouter

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)

8.1 M236 K
gpt-oss-20b EXAONE-3.5-7.8B-Instruct

VRAM side by side

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

EXAONE-3.5-7.8B-Instruct · fp16 36.1 GB / 24 GB
❌ Won’t fit
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons