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Concourse Bench v1 测试八个AI模型在模拟媒体采购多步任务中的表现：12次尝试中，两个模型全部完成，两个模型全部失败，整体仅55/96次尝试完成交易。作者提问社区：多步任务中的可靠性差异通常源于指令遵循、工具调用稳定性还是长程规划？
Creatify launches an AI-powered media buyer tool that automates and optimizes ad management, promising daily improvements.
The author recounts building an AI agent using GPT-5.5 Codex and Meta Ads MCP that automates the entire media buying process, from research and copywriting to ad deployment and reporting, replacing the role of a traditional media buyer for less than $20/month.