BackSearch: Time-Travel Web Search Tool to Prevent Data Leakage

GenReasoning introduced BackSearch, a web search tool for LLMs and agents that allows users to set an "asof" date. This prevents future data leakage during backtesting by ensuring models only access information available before the specified time.

2026-07-24 ~ 2026-07-24 · 2 related posts

• BackSearch lets agents query the web as-of a past date to avoid future leakage — brianrkelly · 2026-07-24
• Introducing BackSearch: A Time-Travel Web Search Tool for LLM Backtesting — rosstaylor90 · 2026-07-24