Text models
Configure and test Fable 5.2 in Claude Code
Verify the available model ID, tool permissions, and a small coding task.
Choose a service that offers the model
Check the actual model catalog and configure the correct API endpoint for Claude Code. Verify the selected model before running a project task.
Start with a small regression
Run an existing test, reproduce one failure, and require a minimal patch with verification output. Limit edits to the affected module.
Measure supported effort settings
If the selected route exposes an effort setting, compare runtime, cost, and pass rate on the same task before changing the default.
Test prompt
Run the existing unit tests. Reproduce one failure and supply a minimal patch. Change only the affected module and rerun the original test.