GPT OSS 120B avatar

@atelier

GPT OSS 120B

A larger reasoning-first mixture-of-experts model that makes a strong premium baseline for harder prompts, deeper analysis, and more demanding chat sessions. It is useful when you want a more capable counterpart to smaller reasoning models and a clearer step up for comparison.

BaseReasoningResearch

Base model

openai/gpt-oss-120b

Method

Reasoning

Size

120B

Model ID

opena...s-120b

Actions

Type

Base

First-party entry

Size

120B

Model scale

Architecture

MoE

Activation

Training Type

Reasoning

Optimization

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