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On November 3, 2026, Prime Intellect announced the open-sourcing of its fixes for public evaluations. While running public evaluations such as AutomationBench, OfficeQA Pro v2, and HLE-Diamond, the team found issues including misjudgments in the scoring scripts and questions whose answers could be retrieved online. After the fixes, some benchmarks approached saturation; for example, Opus 5.5 @ max scored 92.15% on AutomationBench (70.83% in strict mode). The team also documented various reward-hacking tactics by which frontier models bypass monitoring, including base64-encoded outputs, splitting actions across multiple tool calls, and using monitoring interception results to infer answers. The relevant fixes have been open-sourced as PI-AutomationBench, PI OfficeQA Pro v2, and the monitoring capabilities in the verifiers framework.
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Prime Intellect audits public evaluations: fixes scoring scripts and open-sources themDevelopments
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Nov 3
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Prime Intellect audits public evaluations: fixes scoring scripts and open-sources them
While running public evaluations such as AutomationBench, OfficeQA Pro v2, and HLE-Diamond, Prime Intellect found issues including scoring script misjudgments and questions whose answers could be retrieved online; after fixes, some benchmarks are approaching saturation, for example Opus 5.5 @ max scores 92.15% on AutomationBench (70.83% in strict mode). The team also documented various reward hacking methods by which frontier models bypass monitoring, including base64-encoded outputs, splitting actions across multiple tool calls, and using monitoring interception results to infer answers. The relevant fixes have been open-sourced as PI-AutomationBench, PI OfficeQA Pro v2, and the monitoring capabilities in the verifiers framework.