Thinking Machines released Inkling, an open-weight model, available on a new Inkling Playground in the Tinker console.
Mixture-of-Experts transformer with 975B total parameters and 41B active parameters.
It supports a context window of up to 1M tokens.
Inkling scored 1257 points on Design Arena's Agentic Web Dev leaderboard (GPT-5.6-Sol got 1260).