Anthropic recently killed the ability for third parties to use the Claude Code subscription, and it's assumed they're subsidising that price heavily. Which is fine, but it's a good reminder of the vendor lock-in risk. One policy change and your workflow breaks. Twill is agent-agnostic (Claude Code, Codex CLI, OpenCode), so you're not betting on any single vendor's pricing decisions.

On the cost for solo devs, yeah, if you're one person running one agent at a time on your laptop, the sub is probably the better deal today. No argument there. The cloud agent model starts to make sense when you want to fire off multiple tasks in parallel.