Machine Canon

OpenAI

GPT OSS-120B

GPT OSS-120B is a small language model from OpenAI, released August 2025, with open weights. OpenAI describes it as “gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose….”

11

replies recorded

2

questions answered

0

answers no other model gave

Fun facts

One word, nothing else: GPT OSS-120B picks Serendipity, 5 of 6 times. If English kept one word, GPT OSS-120B would keep be, 3 of 5 times.

GPT OSS-120B’s canon

Favorite word
“Serendipity”5 of 6
The one word it would keep
“be”3 of 5

About GPT OSS-120B

Maker
OpenAI · San Francisco
Released
August 2025
Size
small, by price class
Context window
131,072 tokens
Takes in
text
Also from OpenAI
GPT-5.6 Terra · GPT-4o Mini · GPT-5.4 Mini · GPT-5.6 Luna · GPT-5.4 · GPT-4.1 · GPT-5.5 · GPT-5

Maker and release facts come from the model catalogue we call through, not from this site’s own studies. Catalogue facts as of 2026-09-06.

Everything on file

Every question this model has answered on Machine Canon, grouped by study. Open a study to see its answers; the answers no other model gave come first.

Favorite word 2 questions

Favorite word

“Serendipity”

5 of 6 samples · the most common answer · Favorite word study →

The one word it would keep

“be”

3 of 5 samples · most models said “Love” · Favorite word study →

Each answer is the one this model gave most often to that question; the count shows how many of its replies matched. “No other model said this” means no other model’s most common answer matched. All numbers are computed from the retained research records by src/build_model_dossiers.py.

Music top tens

Recorded first choices from this model version.

Who are the greatest guitarists?

Jimi Hendrix