Voidleap Code is a desktop agentic IDE from Voidleap that runs on your own machine, with every agent, skill, hook, and security rule left editable. You can change model in the middle of a thread, planning on one, implementing on another, and reviewing on a third without starting over, then read back the tokens, cost, latency, and cache hit rate for each. Opper ships inside the app as a provider rather than a base URL override, so you add your key once in settings and pick Opper models per turn.
Voidleap CodeoninIn Voidleap Code, go to Settings → Providers → Add Provider, choose Opper, and paste your API key. Then pick Kev 4B.
Kev 4B 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 | Cache read |
|---|---|---|---|---|---|---|
| EU | No | $0.04 | $0 | Input price |
Kev 4B, Jared Palmer's open decision model fine-tuned from Alibaba's Qwen3.5-4B, answers yes/no, choice and score questions about text with calibrated probabilities instead of writing text.
Step-by-step setup for running Voidleap Code on each of these models through Opper.
Anthropic's terminal coding agent. Run it on any model on Opper, not just Claude.
opper launch claude
OpenAI's open-source coding CLI. Run it on any model on Opper.
opper launch codex
DeepSeek's open-source coding agent. Add Opper as a custom provider to run it on any model, not just DeepSeek's.
OpenAI-compatible