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ReSum: Long-Horizon Web Agents Without Context Limits ā¢ Problem: ReAct hits context limits in long searches (32k tokens) ā¢ Solution: ReSum periodically compresses history ā compact reasoning states ā¢ ReSumTool-30B: specialized summarizer extracts key evidence & gaps ā¢ ReSum-GRPO (RL): trains agents to adapt summaries into reasoning ā¢ +4.5% over ReAct baseline, +8.2% with RL across web search benchmarks abs: https://t.co/QRkfu2w6TN (7/7)
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