Run Pi on GLM-5.3

Name: Pi
Author: pi.dev

by pi.devCoding agentpi.dev

Pi is a lightweight open coding agent from pi.dev. It's a simple, fast terminal agent that edits code and runs tasks from natural-language prompts, built to stay minimal and model-agnostic rather than locked to one provider. On Opper, launch it on any of 700+ models, fall back across providers automatically, and keep everything on one key.

Run

Pionin

Launch Pi on GLM-5.3

Set up with agents

Paste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.

Get your API key

Where you can run it

GLM-5.3 runs on the routes below. Route only to EU providers when your data has to stay in Europe.

Provider	Region	Zero data retention	Training	Input	Output
Melious	EU	Zero data retention	No	$1.16	$4.63
TensorX	EU	Zero data retention	No	$1.75	$4.50
Novita	US	Zero data retention	No	$1.40	$4.40

The model

GLM-5.3

by Z.ai

GLM-5.3 is Z.ai's flagship coding and agentic model, post-trained on the GLM-5.2 base (753B MoE): 1M-token context, 128K output, text-only, reasoning always on with a low/high/max effort ladder.