Agent Arena：7 月最强的 Claude Fable 5 如今只算平均水准
Agent Arena 数据：7 月最强的 Claude Fable 5 如今只算平均水准
Agent Arena 用 Confirmed Success 指标统计用户委托真实任务并确认结果是否满足需求。7 月 1 日 Claude Fable 5 明显领先其他模型，仅 12 周后前 20 名平均分就已追平它；Kimi K3 在 3 周内以每任务成本低 89% 超越它，DeepSeek V4.1 Flash 以低 96% 的成本追平。
July's most reliable AI agent is now just average.
With Agent Arena, people delegate real tasks to agents and confirm whether the result met their needs. We call this signal Confirmed Success.
On 1 July, Claude Fable 5 was well ahead of every other model, and it only took 12 weeks for the top‑20 average to match it.
Kimi K3 beat it within just 3 weeks at 89% lower cost per task, and DeepSeek V4.1 Flash now matches it at 96% lower cost.
Meanwhile, the top 5 now get 94% of tasks confirmed done, up from 80% in July, led by Claude Opus 5.5, Claude Fable 5.1 and GPT‑6.1 Sol.
Today's leaders won't stay on top for long.
Track Confirmed Success and our other agent signals live at the link in thread.
来源：Arena · x.com