Codex is OpenAI's open-source coding agent for the terminal. It works from natural-language instructions to edit code across your project, run commands, and complete tasks end to end, with its source available on GitHub under Apache-2.0. On Opper, launch it on GPT, Claude, Gemini, DeepSeek and 700+ more — one key, automatic fallbacks, and a choice of region.
CodexoninPaste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
GLM-5.2 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 |
|---|---|---|---|---|---|
| Berget | EU | Zero data retention | No | $1.62 | $5.10 |
| evroc | EU | Zero data retention | No | $1.45 | $5.80 |
| Inceptron | EU | Enterprise | No | $0.75 | $2.90 |
| Nebius | EU | Enterprise | No | $1.40 | $4.40 |
| Nextbit | EU | Enterprise | No | $1.40 | $4.40 |
| Regolo | EU | Zero data retention | No | $2.32 | $6.03 |
| Sference | EU | Zero data retention | No | $1.20 | $4.20 |
| TensorX | EU | Zero data retention | No | $1.50 | $4.50 |
| DeepInfra | US | Enterprise | No | $0.75 | $2.40 |
| Morph | US | Enterprise | No | $1.10 | $4.10 |
| Novita | US | Enterprise | No | $1.40 | $4.40 |
| Wafer | US | Zero data retention | No | $1.26 | $3.96 |
| Alibaba Cloud | Multi | Enterprise | No | $1.19 | $4.15 |
| BytePlus | Multi | Enterprise | No | $1.40 | $4.40 |
| Fireworks | Multi | Enterprise | No | $1.40 | $4.40 |
GLM-5.2 by Z.ai is a 744B open-weight (MIT) mixture-of-experts coding model with a 1M-token context, IndexShare sparse attention, and selectable thinking-effort levels.
Anthropic's terminal coding agent. Run it on any model on Opper, not just Claude.
opper launch claude
DeepSeek's open-source coding agent. Add Opper as a custom provider to run it on any model, not just DeepSeek's.
OpenAI-compatible
An open-source, model-agnostic coding agent for the terminal, wired to Opper's catalogue.
opper launch opencode