Create README.md

README.md

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+---
+license: apache-2.0
+datasets:
+- Agent-Ark/Toucan-1.5M
+language:
+- en
+base_model:
+- Qwen/Qwen2.5-7B-Instruct
+tags:
+- agent
+---
+
+# 🦤 Toucan-1.5M: 
+
+Toucan-1.5M is the largest fully synthetic tool-agent dataset to date, designed to advance tool use in agentic LLMs. It comprises over 1.5 million trajectories synthesized from 495 real-world Model Context Protocols (MCPs) spanning 2,000+ tools. By leveraging authentic MCP environments, Toucan-1.5M generates diverse, realistic, and challenging tasks requires using multiple tools, with trajectories involving real tool executions across multi-round, multi-turn, sequential, and parallel tool calls. Models fine-tuned on Toucan-1.5M outperform much larger closed-source counterparts on the BFCL V3 benchmark and extend the Pareto frontier on the MCP-Universe benchmark.
+
+- 📄 [Technical Report](https://arxiv.org/abs/2510.01179) - Discover the methodology and technical details behind Toucan-1.5M
+- 💾 [Github Repo](https://github.com/TheAgentArk/Toucan) - Access the complete pipeline used to produce Toucan-1.5M
+- 🤗 [HF Dataset](https://huggingface.co/datasets/Agent-Ark/Toucan-1.5M) - Full dataset (You are here!)
+- 🤖 Model Checkpoints - [Qwen2.5-7B](https://huggingface.co/Agent-Ark/Toucan-Qwen2.5-7B-Instruct-v0.1) | [Qwen2.5-14B](https://huggingface.co/Agent-Ark/Toucan-Qwen2.5-7B-Instruct-v0.1) | [Qwen2.5-32B](https://huggingface.co/Agent-Ark/Toucan-Qwen2.5-32B-Instruct-v0.1)
+
+![Toucan-Pipeline](https://cdn-uploads.huggingface.co/production/uploads/653df1323479e9ebbe3eb6cc/Dcz-NP1tfcJriku8FP2OT.jpeg)
+
+## About This Model
+
+This model is a fine-tuned variant of **Qwen2.5-14B-Instruct**, trained on a curated subset of the [Toucan-1.5M](https://huggingface.co/datasets/Agent-Ark/Toucan-1.5M) dataset. The supervised fine-tuning (SFT) subset consists of **119.3K instances** in total, including:
+
+- **28.3K** from the original pipeline  
+- **40K** from Extension 1 (*Irrelevance*)  
+- **15.8K** from Extension 2 (*Diversify*)  
+- **35.2K** from Extension 3 (*Multi-Turn*)  
+
+We adopt the `Hermes` prompt template for fine-tuning. For a detailed description of the training setup and hyperparameters, please refer to our [technical report](https://arxiv.org/abs/2510.01179).
+
+
+## 📚 Citation
+
+If you find the data or code useful, please cite:
+```
+@misc{xu2025toucan,
+      title={TOUCAN: Synthesizing 1.5M Tool-Agentic Data from Real-World MCP Environments}, 
+      author={Zhangchen Xu and Adriana Meza Soria and Shawn Tan and Anurag Roy and Ashish Sunil Agrawal and Radha Poovendran and Rameswar Panda},
+      year={2025},
+      eprint={2510.01179},
+      archivePrefix={arXiv},
+      primaryClass={cs.LG},
+      url={https://arxiv.org/abs/2510.01179}, 
+}
+```
+
+**Contact**: For questions, please contact [Zhangchen](mailto:[email protected]) by email.