Run Kilo Code on GPT-5.4

by Kilo CodeEditorkilocode.ai

Kilo Code is an open-source AI coding agent for VS Code. It combines autonomous editing, planning and architect modes, and a provider catalogue built from the open models.dev listing, where Opper is one of the providers. Pick Opper, paste your key, and you can run it on any of 700+ models on one gateway, with a choice of region.

Run

Kilo Codeonin

Connect Kilo Code to GPT-5.4

Add Opper in Kilo Code

In Kilo Code, open Settings → Providers → Show more providers, search for Opper and paste your Opper key. Then pick GPT-5.4.

Model id

Get your API key

Where you can run it

GPT-5.4 runs on the routes below. Route only to EU providers when your data has to stay in Europe. One route also sells flex and priority processing: the same model at another price, picked per request with service_tier. How service tiers work.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
Azure	EU		No	$2.75	$16.50	$0.28	Not offered on this route	Not offered on this route
OpenAI	US		No	$2.50	$15.00	$0.25

The model

GPT-5.4

by OpenAI

GPT-5.4 is OpenAI's frontier model for complex professional work, with a 1M context window, vision, tool use, structured output, and configurable reasoning.