For me something the likes of: design a CDM for integrating these 5 logistical systems, with full docs and examples provided for each, as well as modeled transports specific to our business. Prompt was of course much longer.
Both failed spectacularly. But sol's output at least contained interesting findings and some useful parts, as well as not being 20000 words of unbearable language.
I have both set up with full access to all the repos at the company, infrastructure, deployment pipelines, etc.
I can tell Sol, "Hey we need to update this core database schema to handle this new use case" and it will masterfully handle the update, version the API, roll the consumers over, including versioning the Kafka schemas, deploying things in sequence, watching the deployments to make sure the new services act actually active before cutting over consumers, exercising the website and mobile apps in staging environments before releasing to production, etc.
Fable just falls over on long horizon tasks, it does partial implementations, it cuts corners, it gives up, it doesn't verify it's work, it loses track of what it's doing, etc.
It's fine for specific well scoped tasks but can't take high level guidance for complex updates.