Jarred Sumner Recommends Medium Effort for Claude Opus

Jarred Sumner, creator of Bun and now at Anthropic working on Claude Code, advised using the medium effort setting instead of high with the Opus model for coding tasks. He explained that the high setting leads the model to treat minor comments as criticism and make unnecessary adjustments. Theo, who had mostly used the high setting, replied that he would try medium to evaluate the results. The brief exchange centers on practical tuning of an effort parameter to improve model behavior during coding assistance.