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 | $1.63 | $5.11 |
| evroc | EU | Zero data retention | No | $1.45 | $5.81 |
| Inceptron | EU | Zero data retention | No | $0.75 | $2.90 |
| Melious | EU | Zero data retention | No | $1.16 | $4.65 |
| Nebius | EU | Not by default | No | $1.40 | $4.40 |
| Regolo | EU | Zero data retention | No | $2.32 | $6.04 |
| Sference | EU | Zero data retention | No | $1.20 | $4.20 |
| TensorX | EU | Zero data retention | No | $1.50 | $4.50 |
| DeepInfra | US | Zero data retention | No | $0.75 | $2.40 |
| DigitalOcean | US | Not by default | No | $0.70 | $2.20 |
| Morph | US | Not by default | No | $1.10 | $4.10 |
| Novita | US | Zero data retention | No | $1.40 | $4.40 |
| Wafer | US | Zero data retention | No | $1.26 | $3.96 |
| Alibaba Cloud | Multi | Not by default | No | $1.19 | $4.17 |
| BytePlus | Multi | Not by default | No | $1.40 | $4.40 |
| Fireworks | Multi | Zero data retention | 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.
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opper launch claude
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OpenAI-compatible
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OpenAI-compatible