Fable can delegate tasks to Opus or Sonnet, so it has some agentic properties and I believe it does them in parallel.

The parallelism is where this starts to fall apart on a local PC. Like I can run some Qwen quants, but I can’t run a decent Qwen model while also running another model smart enough to actually implement it. I’d have to do them in series, and given how long Fable seems to take even with parallelism, I’d probably be waiting days for an answer.

oh-my-pi can delegate tasks to other models too. I usually use DS4 Flash for low priority subagent tasks.

If Fable is "delegating" tasks, then there's actually an agent front end of whatever you think the API is.

We have a local instance of Qwen-3.6 which is more than adequate for running agents. You can mix and match local and cloud-hosted models. (My biggest use case for local models right now is vision models because they're quite small and I can avoid some data-locality issues my customers wouldn't be comfortable with if I sen them to a Chinese model.)