September 2026 Summaries

Arcee AI has partnered with Bolt on Forge, a month-long research preview running from September 14 to October 14, 2026, that connects opted-in developers’ real software-building workflows with the training and evaluation of future open-weight AI models. Eligible individual Bolt Pro users can receive 50 times more usage on selected models, including GLM-5.3-Flash, GLM-5.3, Kimi-K3, and DeepSeek-v4-Pro, enabling longer development sessions and more experimentation without daily limits. Arcee plans to use Forge session data to study model weaknesses, responsiveness to feedback, and performance across extended creative projects, then release resulting models with open weights for developers to adapt and deploy.