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// Chain-of-Tools // This new paper presents Chain-of-Tools (CoTools), a new method to enable LLMs to incorporate expansive external toolsets—including tools never seen during training—while preserving CoT (chain-of-thought) reasoning. Highlights: • Frozen LLM with… https://t.co/rygfJXLOjl
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"full_text": "// Chain-of-Tools //\n\nThis new paper presents Chain-of-Tools (CoTools), a new method to enable LLMs to incorporate expansive external toolsets—including tools never seen during training—while preserving CoT (chain-of-thought) reasoning.\n\nHighlights:\n\n• Frozen LLM with… https://t.co/rygfJXLOjl",
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"text": "// Chain-of-Tools //\n\nThis new paper presents Chain-of-Tools (CoTools), a new method to enable LLMs to incorporate expansive external toolsets—including tools never seen during training—while preserving CoT (chain-of-thought) reasoning.\n\nHighlights:\n\n• Frozen LLM with lightweight fine-tuning – Unlike conventional approaches, CoTools keeps the LLM’s parameters frozen, instead fine-tuning separate modules (a Tool Judge and Tool Retriever) on top of the model’s hidden states. This preserves the LLM’s core capabilities while letting it call an open-ended set of tools during reasoning.\n\n• Massive unseen tools – CoTools treats tools as semantic vectors computed from their textual descriptions. Even tools that never appear in the fine-tuning data can be invoked if they match the model’s query vectors, enabling new tools to be plugged in without retraining the entire system.\n\n• Tool calls integrated into CoT – The system determines whether and when to call a tool in the middle of generating an answer. It then selects the best tool from thousands of candidates based on learned representations of the query and partial solution context. This helps to signifcantly boost accuracy on complex tasks.\n\n• Strong gains on reasoning and QA – Experiments on GSM8K-XL, FuncQA, KAMEL, and the newly introduced SimpleToolQuestions dataset (with 1,836 tools) show improved tool-selection accuracy and superior final answers versus baseline methods. Notably, CoTools consistently scales to large tool pools and generalizes to unseen tools.",
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