Best part for me is it's model agnostic. I liked Claude Code, it worked better for me than VSCode Copilot Agent, but Claude was too expensive, so I rarely used it, and the price/friction felt bad when I did.
sst/opencode I can use with my existing Copilot subscription, and select Claude Sonnet 4 freely. I never hit the limit before, and all friction is gone! If Google ever builds a better model, I can switch the same day, and keep my workflows, configs, etc.
Also, with Claude COde I always felt a little mistrust, since theoretically they benefit from providing a more expensive service. opencode doesn't have this misaligned incentive.
According to https://models.dev/?search=sonnet+4 the copilot version of sonnet 4 is constrained on output tokens - still seems like the cheapest combo though. Ill give it a whirl
