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.
Qwen3.8 Flash-Next runs on the routes below. Route only to EU providers when your data has to stay in Europe.
Qwen3.8 Flash-Next is a natively multimodal MoE model from Alibaba with 125B total / 6B active parameters and a 256K context window. It targets frontier-grade coding and agentic work at very low active-parameter cost (Artificial Analysis intelligence index 55.8, coding index 73.1).
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
GitHub's terminal coding agent. Point its provider variables at Opper to run it on any model, no Copilot plan required.
OpenAI-compatible