Turnstone is the best model-agnostic Grokbot alternative. Run persistent Agents on your Mac with the AI subscriptions or API keys you already have On Turnstone, you can connect multiple AI subscriptions / API keys in one place, and build a team of agents just like you would on Grokbot. When a subscription runs out, your Agent can automatically move to another connected subscription with available capacity. You can switch between accounts and model providers within an agent, and its conversation and context persists.
The company was founded by Aryan Vij; Jai Bhatia. It is part of YC Winter 2026. It is based in San Francisco, CA, USA.