GitHub Copilot CLI brings Copilot's coding agent to the terminal: it reads your repository, edits files, runs commands, and completes tasks from natural-language prompts. It supports custom model providers through plain environment variables, and with a custom provider configured it runs without a Copilot plan or even a GitHub login. Point it at Opper's OpenAI-compatible gateway and it works with any of 700+ models, with fallbacks and a choice of region on one key.
RunGitHub Copilot CLIonin
Connect GitHub Copilot CLI to GLM-5.3-Flash
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.
GLM-5.3-Flash runs on the routes below. Route only to EU providers when your data has to stay in Europe. Some routes also sell flex and priority processing: the same model at another price, picked per request with service_tier. How service tiers work.
GLM-5.3-Flash by Z.ai is a natively multimodal 320B MoE with 18B active parameters, hybrid sparse and linear attention, a 1M-token context, and MIT open weights for coding and agent work.