Building a listed tool
Justin Beckwith
OpenAI engineering leader; Guardrails repository contributor, named behind the OpenAI Guardrails listing on Anchor Terminal.
What Justin builds
OpenAI Guardrails B · Guardrails & safety filters
OpenAI's open-source Python library that wraps the OpenAI client and runs configured checks on inputs, outputs and tool calls, including moderation, jailbreak, prompt injection, personal data, URL and off-topic checks. It is labelled a preview.
OpenAI engineering leader; Guardrails repository contributor, researched 27 October 2026 · the people behind it
Works with
- Andrej Karpathy Co-founder, OpenAI
- Durk Kingma Co-founder, OpenAI
- Elon Musk Co-founder, OpenAI
- Greg Brockman Co-founder, OpenAI
- Hannah Koch Product Manager, Codex
- Ian Kivlichan Safety researcher; credited Moderation model contributor
- Ilya Sutskever Co-founder, OpenAI
- John Hallman Credited gpt-oss contributor; post-training researcher
- John Schulman Co-founder, OpenAI
- Justin Uberti Head of Realtime AI; Member of Technical Staff
- Nikunj Handa Head of Product, OpenAI API
- Pamela Vagata Co-founder, OpenAI
- Rennie Song Member of Technical Staff; Dots engineer
- Sam Altman Co-founder, OpenAI
- Trevor Blackwell Co-founder, OpenAI
- Vicki Cheung Co-founder, OpenAI
- Wojciech Zaremba Co-founder, OpenAI
Backed by
SoftBank Thrive Capital Microsoft NVIDIA Altimeter Capital Coatue Khosla Ventures Fidelity Investments MGX Tiger Global
Questions
Who is Justin Beckwith?
Justin Beckwith is openAI engineering leader; Guardrails repository contributor.
What does OpenAI make?
Anchor Terminal lists OpenAI Guardrails from OpenAI. OpenAI's open-source Python library that wraps the OpenAI client and runs configured checks on inputs, outputs and tool calls, including moderation, jailbreak, prompt injection, personal data, URL and off-topic checks. It is labelled a preview.
Who has invested in OpenAI?
The sources our research read name SoftBank, Thrive Capital, Microsoft, NVIDIA, Altimeter Capital, Coatue, Khosla Ventures, Fidelity Investments, MGX and Tiger Global.
How are Justin's tools graded?
OpenAI Guardrails is graded B, 69.5 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (11)
- https://github.com/openai/openai-guardrails-python
- https://github.com/jbeckwith-oai
- https://jbeckwith.com
- https://www.linkedin.com/in/beckwith
- https://openai.com/index/introducing-openai/
- https://x.com/sama/with_replies?lang=en
- https://x.com/gdb/with_replies
- https://x.com/ilyasut/with_replies
- https://x.com/woj_zaremba/with_replies
- https://openai.com/
- https://help.openai.com/en/articles/6614161-how-can-i-contact-support
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.