Claude Fable 5.1 from Anthropic — reasoning model on the Opper gateway.
Available on
Pricing from$10.00/ 1M input$50.00/ 1M output1Mcontext
Privacy
- Zero data retention
- Enterprise
- Training
- No
- Region
- US, Multi
Run Voidleap Code on Claude Fable 5.1
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.
RunVoidleap Codeonin
Voidleap CodeoninConnect Voidleap Code to Claude Fable 5.1
Add Opper in Voidleap Code
In Voidleap Code, go to Settings → Providers → Add Provider, choose Opper, and paste your API key. Then pick Claude Fable 5.1.
Model id
Where you can run it
Claude Fable 5.1 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 |
|---|---|---|---|---|---|
| Anthropic | US | Enterprise | No | $10.00 | $50.00 |
| Azure | Multi | Enterprise | No | $10.00 | $50.00 |
| Google Cloud | Multi | Enterprise | No | $10.00 | $50.00 |
The model
More apps on Opper
Claude Code
Anthropic's terminal coding agent. Run it on any model on Opper, not just Claude.
Coding
opper launch claude
Codex
OpenAI's open-source coding CLI. Run it on any model on Opper.
Coding
opper launch codex
DeepSeek Harness
DeepSeek's open-source coding agent. Add Opper as a custom provider to run it on any model, not just DeepSeek's.
Coding
OpenAI-compatible