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This article analyzes the implications of OpenAI potentially winding down fine-tuning, warning that frontier models may become overfitted to proprietary harnesses. It argues this shift could increase vendor lock-in and reduce model flexibility for third-party developers despite gains in reliability.
Anthropic engineers detail a multi-agent harness design using generator and evaluator agents to improve Claude's ability to build complete, high-quality frontend applications autonomously over long durations.