If you are on $100 tier Claude, what makes you think the $20 Tier Ollama is enough for you ?

If your workflow is general enough, you can (and should) switch between models. They all have different styles and blind spots.

Like I had Codex + gpt-5-codex (20€ tier) build me a network connectivity monitor for my very specific use case.

It worked, but had some really weird choices. Gave it to Claude Code (20€ tier again) and it immediately found a few issues and simplifications.