Thinking Machines
Thinking Machines Lab announced Inkling on July 15, 2026 as its first fully open-weights model, a Mixture-of-Experts transformer with 975B total parameters and 41B active, supporting a 1M-token context window and pretrained on 45 trillion tokens of text, images, audio, and video. Alongside the flagship, the lab release Inkling is available for fine-tuning on Tinker starting on launch day, and the company introduced an Inkling Playground inside the Tinker console for chatting with the model. To demonstrate self-customization, Thinking Machines published a session where Inkling wrote and ran its own fine-tuning job on Tinker and evalua
