Expired50% confidenceFactExact time
Anthropic used RLHF (Reinforcement Learning from Human Feedback) to specifically optimize the Opus model's performance on engineering tasks, calling this capability 'Harness Engineer' engineering capability.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Code in Practice: Complex Payment Feature Built in 4 Hours for $60
bilibili超哥讲AI6/16/2026
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