Unverified50% confidenceBenchmarkExact time
The new model achieved 1,620 points on GDPVal (compared to 735 for the previous generation), improved on OSWorld from 15.7% to 72.4%, on Terminal Bench from 0.0% to 39.2%, and on Humanity's Last Exam from 10.2% to 45.9% without tools and from 18.7% to 57.4% with tools.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/12/2026
First Seen
Valid until: 1/10/2027
Sources
Related Entities
Related Claims
UnverifiedAcross multiple benchmarks, the gap between Sonnet 5.5 and Opus 5.5 is minimal, such as GDP Val at 1844 vs. 1846, OS World at 80.1% vs. 81%, and Humanity's Last Exam at 64.5 vs. 67.7.69% similarUnverifiedWhen OSWorld was released in 2024, the strongest baseline model score was only approximately 12%, while the human completion rate was approximately 72%.66% similarUnverifiedAccording to data from Artificial Analysis, the number of reasoning tokens per task doubled from approximately 42,000 in Opus 5 to 84,000 in Opus 5.5, while output tokens only increased from 30,000 to 35,000.59% similarUnverified发布的checkpoint按块大小16训练，若将采样块大小改为64，HumanEval从76%跌至约20%，GSM8K从高位跌到2.2%58% similarUnverifiedAnthropic states that Opus 5.5 is more than 30% faster than the previous generation and can save approximately 40% of compute under default settings.57% similar
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