allenai/tmax-sft-8b

TEXT GENERATIONConcurrent Unit Cost:1Model Size:8BQuant:FP8Context Size:32kTool Calling:SupportedPublished:Jun 17, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Featherless Exclusive Cold

allenai/tmax-sft-8b is an 8 billion parameter instruction-tuned language model developed by Ai2, fine-tuned from Qwen 3 8B. This model is specifically designed and optimized for use as a terminal agent, demonstrating strong performance on terminal-based tasks. It serves as the supervised fine-tuning base for the Tmax 8B RL-trained model, excelling in environments requiring command-line interaction.

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Overview

allenai/tmax-sft-8b is an 8 billion parameter language model developed by Ai2, specifically designed for use as a terminal agent. It is built upon the Qwen 3 8B architecture and has undergone supervised fine-tuning (SFT) using the TMax-15k dataset. This model is a foundational component for the subsequent RL training of the Tmax 8B model, focusing on enhancing its capabilities in terminal environments.

Key Capabilities & Performance

  • Terminal Agent Optimization: Tmax SFT 8B is explicitly trained to function as a terminal agent, enabling it to interact effectively with command-line interfaces.
  • Evaluation Benchmarks: It demonstrates improved performance over its base model, Qwen 3 8B, on terminal-based evaluation tasks. Specifically, it achieves 11.5 +/- 0.1 on TB Lite and 6.0 +/- 1.4 on TB 2.1, outperforming Qwen 3 8B's scores of 7.3 +/- 1.0 and 1.1 +/- 0.9 respectively.
  • Training Details: The model was trained with a maximum overall token length of 32768, a global train batch size of 128, and 2 epochs, using a linear cooldown learning rate scheduler with 0.03% warmup.

When to Use This Model

  • Terminal Automation: Ideal for applications requiring an AI to interact with and execute commands within a terminal environment.
  • Base for Further Training: Suitable as a strong SFT base model for researchers and developers looking to conduct further reinforcement learning or specialized fine-tuning for terminal agent tasks.
  • Research in Agentic LLMs: Valuable for academic and research purposes exploring the development and evaluation of language models as autonomous agents.