Thinking Machines, a research lab led by Mira Murati, has introduced Inkling Small, a new AI model that prioritizes efficiency over size. This open-weights reasoning model is significantly smaller than its predecessor, Inkling, yet outperforms it in various coding and reasoning tasks. The comparison of Inkling Small's performance to its larger counterpart highlights the potential benefits of optimized AI design. This development matters because it could lead to more practical applications of AI in industries where computational resources are limited.