Expired60% confidenceBenchmarkExact time
GPT-5.6 Sol achieved the highest score on Humanity's Last Exam at a price far below that of Claude Opus and Fable.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/11/2026
First Seen
Valid until: 10/9/2026(expired)
Sources
GPT-5.6全解析：Sol旗舰模型性能、短板与竞争力评测
bilibili小牛AI_XNAI7/10/2026
Related Claims
UnverifiedOpus 5.5 at the Max tier requires $14.65 to achieve the same score as GPT-6.1 Sol, meaning 6.1 Sol is approximately 73 times cheaper.78% similarVerifiedIn the Agents' Last Exam benchmark, GPT-5.6 Sol achieved a score of 53.6, which is 13.1 points higher than Claude Fable 5 using adaptive reasoning.74% similarUnverifiedGPT-5.6 set a new all-time high score of 53.6 on the Agent's Last Exam benchmark, surpassing Claude Opus 4.5 by 13.1 points.74% similarUnverified在长周期智能体工作流测试（Engines Last Exam）中，GPT-5.6 Sol 得分 53.6，比 Faber-5 高出 13.1 分72% similar
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