Founder of a listed tool
John Schulman
Co-founder and Chief Scientist; Tinker research/hiring involvement, named behind the Tinker listing on Anchor Terminal.
What John builds
Tinker D · Fine-tuning
Thinking Machines Lab's API for model training.
Co-founder and Chief Scientist; Tinker research/hiring involvement, researched 27 October 2026 · the people behind it
Works with
- Joshua Gross Original Tinker builder; now Director, Muse Product Post-Training at Meta
- Mira Murati Co-founder and CEO
Backed by
Andreessen Horowitz NVIDIA Accel ServiceNow Cisco Investments AMD Jane Street
Questions
Who is John Schulman?
John Schulman is chief scientist at Thinking Machines Lab, which he joined in February 2025. He co-founded OpenAI in 2015 and led the reinforcement learning team that created ChatGPT, drawing on his work on Trust Region Policy Optimization and proximal policy optimization. He spent a few months at Anthropic in between.
What does Thinking Machines Lab make?
Anchor Terminal lists Tinker from Thinking Machines Lab. Thinking Machines Lab's API for model training.
Who has invested in Thinking Machines Lab?
The sources our research read name Andreessen Horowitz, NVIDIA, Accel, ServiceNow, Cisco Investments, AMD and Jane Street.
How are John's tools graded?
Tinker is graded D, 51.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (13)
- https://thinkingmachines.ai/news/nvidia-partnership/
- https://thinkingmachines.ai/news/inkling-small/
- https://x.com/miramurati
- https://joschu.net
- https://x.com/search?q=from%3Ajohnschulman2%20Tinker&src=typed_query
- https://x.com/johnschulman2
- https://www.linkedin.com/posts/joshgross_software-engineer-product-activity-7379658412789448704-qys9
- https://www.google.com/search?q=%22Tinker%22+%22Joshua+Gross%22
- https://www.linkedin.com/in/joshgross
- https://thinkingmachines.ai/
- https://thinkingmachines.ai/tinker/
- https://x.com/tinkerapi
- https://tinker-docs.thinkingmachines.ai/support/
Not the same person as John Schulman (OpenAI and Stripe, OpenAI), as far as the research can tell, since the listings name them at different companies with different or no profiles.
These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.