GLM-5.1 by Z.ai is a 754B open-weight (MIT) coding and agentic reasoning model with 202K context that tops SWE-Bench Pro at 58.4.
Available on
Privacy
- Zero data retention
- Always-on
- Training
- No
- Region
- EU + US
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.
Paste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
GLM 5.1 runs on the routes below. Route only to EU providers when your data has to stay in Europe.
GLM-5.1 by Z.ai is a 754B open-weight (MIT) coding and agentic reasoning model with 202K context that tops SWE-Bench Pro at 58.4.
Point Cursor's OpenAI base URL at Opper to run it on any of 700+ models.
OpenAI-compatibleCline's OpenAI-Compatible provider points straight at Opper's gateway.
OpenAI-compatibleKilo Code's OpenAI-Compatible provider connects to Opper's gateway in two fields.
OpenAI-compatible