And it's worth pointing out that Claude Code now dispatches "subagents" from Opus->Sonnet and Opus->Haiku ... all the time, depending on the problem.

Running this thing locally on my Spark with 4-bit quant I'm getting 30-35 tokens/sec in opencode but it doesn't feel any "stupider" than Haiku, that's for sure. Haiku can be dumb as a post. This thing is smarter than that.

It feels somewhere around Sonnet 4 level, and I am finding it genuinely useful at 4-bit even. Though I have paid subscriptions elsewhere, so I doubt I'll actually use it much.

I could see configuration OpenCode somehow to use paid Kimi 2.5 or Gemini for the planning/analysis & compaction, and this for the task execution. It seems entirely competent.