Teardex

Robots/Parts/AI model

GPT-based large model

A large language model of the kind behind ChatGPT, used on the Go2 so it can understand spoken requests and answer. Unitree advertises it as "big model GPT empowerment" but does not say which model it is or who supplies it.

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robots in the database
Not named
made by
AI model
brain layer
Not public
price

Key numbers

Model and supplier
not named by Unitree
Used for
understanding and answering spoken requests

Source: Unitree shop, Go2 (shop.unitree.com)

Strengths and trade-offs

Our analysis

Strengths

Lets an owner talk to the robot in ordinary language.

Borrows the abilities of a very large model without Unitree having to build one.

Trade-offs

Unnamed, so nobody can tell how capable it is or where the conversation is sent.

A model of this size usually runs on a server, so it probably needs an internet connection.

It handles talking. It does not control how the robot walks.

Why robot makers choose it

Our read

A robot dog sold to the public needs a feature people can enjoy on day one. Talking to it is the easiest to show off, and connecting an existing language model is far cheaper than building one.

This is our reasoning from the public facts. No maker has confirmed it.

Robots using it

Numbers and listed prices on this page come from the sources shown. Anything marked as our analysis, our read or our estimate is our own view and has not been confirmed by any company. Last checked 12 Oct 2026. How we verify

GPT-based large model | Teardex