Cognition has introduced SWE-2, a new coding model that achieves high performance on coding tasks while being more cost-efficient than its predecessors. SWE-2 is post-trained from the Kimi K3 model and uses a novel approach to optimize the cost-performance tradeoff. The model has shown significant improvements in efficiency and intelligence compared to previous models. It is available for use through the Devin platform, with some users having free access to try it out.