>But "run a web search, write a draft perspective from three points of view, and structure data around it" will make everything but Claude + GPT struggle.

Did you mean with some specific harness? GLM5.3-Flash handled a very similar test I ran in opencode (with Kagi MCP to let it search) pretty well, and coming from Claude it was incredibly refreshing to not have to decipher its absurd techbro-speak.