Inkling: our open-weights model
Notable open-model launch because the product story is unusually explicit about customization, agent harness use, and self-improvement workflows rather than just benchmark one-upmanship.
Logged at IST: 2026-07-16 02:06 IST
What it is: Mira Murati announcing Thinking Machines’ first model, Inkling, and pointing to the launch post.
Gist: The important part is not just “open weights.” Inkling is a 975B total / 41B active multimodal Mixture-of-Experts model with 1M context, controllable reasoning effort, and fine-tuning availability on Tinker from day one. The launch positions it as a customization-first base model rather than the absolute frontier model, with emphasis on efficient multimodal reasoning, agentic tool use, and post-training workflows, including a demo where the model fine-tunes and swaps in its own updated weights.
Newsletter angle: Notable open-model launch because the product story is unusually explicit about customization, agent harness use, and self-improvement workflows rather than just benchmark one-upmanship.