Codex $20 is a good deal but they have nothing inbetween $20 and $200.

The $20 Anthropic plan is only enough to wet my appetite, I can't finish anything.

I pay for $100 Anthropic plan, and keep a $20 Codex plan in my back pocket for getting it to do additional review and analysis overtop of what Opus cooks up.

And I have a few small $ of misc credits in DeepSeek and Kimi K2 AI services mainly to try them out, and for tasks that aren't as complicated, and for writing my own agent tools.

$20 Claude doesn't go very far.