Ai2 just released TMax 27B on Hugging Face A 27B terminal agent that hits 42.7% on Terminal Bench 2.0, rivaling models 40× its size.

AI2 released TMax 27B, a 27 billion parameter terminal agent model available on Hugging Face that achieves 42.7% performance on Terminal Bench 2.0, matching the capabilities of much larger models despite being significantly smaller. This represents a notable efficiency breakthrough in agent-based AI systems, where the model can perform comparably to models approximately 40 times its size. The release demonstrates advances in model optimization and agent design, making capable terminal agents more accessible and computationally efficient.

Source: Clem Delangue (X) | 2026-06-22