Founder of a listed tool
Greg Brockman
Named behind 16 listings on Anchor Terminal.
What Greg builds
Agentic Commerce Protocol (ACP) C · Agent checkout protocols
Open checkout spec from OpenAI and Stripe (2025-09-29).
Co-founder, OpenAI, researched 27 October 2026 · the people behind it
GPT-Live B · Conversational voice agents
GPT-Live is OpenAI's full-duplex voice API (
gpt-live-1), which listens while it speaks and delegates reasoning and tools to a Responses model, the Decisions API or the developer's own agent. Clients connect over WebRTC, WebSocket or SIP.Co-founder, OpenAI, researched 27 October 2026 · the people behind it
gpt-oss-120b BB · Open-weight models
gpt-oss-120b is OpenAI's open-weight mixture-of-experts reasoning model, 116.8B parameters with 5.1B active and a 131,072-token context, published on Hugging Face in MXFP4 under Apache 2.0.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
gpt-oss-20b B · Open-weight models
gpt-oss-20b is OpenAI's open-weight mixture-of-experts reasoning model, 21B parameters with 3.6B active and a 131,072-token context, published on Hugging Face in MXFP4 under Apache 2.0 and trained on the harmony prompt format.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Agents SDK AA · Agent frameworks & SDKs
Multi-agent framework built on agents, hand-offs and guardrails, with sessions, tracing and human approval.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI API A · Model APIs & inference
OpenAI's API for accessing its models through Responses, Chat Completions and Batch endpoints.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Codex BB · Agent harnesses
OpenAI's coding agent for software development tasks.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Decisions API BB · Decision models
The Decisions API is an OpenAI endpoint, in public beta since 6 October 2026, that reads text and images and returns typed answers with probabilities, a predicate, a choice from a fixed set or a rubric score.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
Dots is OpenAI's always-on agent inside ChatGPT, in beta. Each dot has a cloud computer and browser, keeps notes, works between conversations across connected apps, and answers in ChatGPT, by voice call, Slack and Teams.
Co-founder, OpenAI, researched 27 October 2026 · the people behind it
OpenAI embeddings BB · Embeddings & rerankers
OpenAI's text embedding API, with adjustable output dimensions for search and retrieval applications.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
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.
Co-founder, OpenAI, researched 27 October 2026 · the people behind it
OpenAI Image API BB · Image generation
OpenAI's image generation and editing endpoints (/v1/images/generations and /v1/images/edits), also callable as a tool inside the Responses API.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Moderation API BB · Guardrails & safety filters
Free classifier endpoint that scores text and images against 13 harm categories (harassment, hate, illicit, self-harm, sexual, violence and their sub-types) and returns a flagged boolean plus per-category scores.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Realtime API B · Conversational voice agents
OpenAI's Realtime API runs spoken conversations with speech-to-speech models such as
gpt-realtime-2.1. Clients connect over WebRTC, WebSocket or SIP, and sessions support interruptions, function calling and remote MCP tools.Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Sora API F · Video generation
Discontinued OpenAI video generation API for the Sora 2 and Sora 2 Pro models.
Co-founder, OpenAI, researched 26 October 2026 · the people behind it
OpenAI Speech to Text BB · Speech-to-text
OpenAI's speech-to-text API. It transcribes uploaded audio files through
/v1/audio/transcriptions, translates recordings into English through/v1/audio/translations, and transcribes live audio in Realtime transcription sessions over WebSocket or WebRTC.Co-founder, OpenAI, researched 26 October 2026 · the people behind it
Works with
- Andrej Karpathy Co-founder, OpenAI
- Durk Kingma Co-founder, OpenAI
- Elon Musk Co-founder, OpenAI
- Ilya Sutskever Co-founder, OpenAI
- John Collison Co-founder, Stripe
- John Schulman Co-founder, OpenAI
- Pamela Vagata Co-founder, OpenAI
- Patrick Collison Co-founder, Stripe
- Sam Altman Co-founder, OpenAI
- Trevor Blackwell Co-founder, OpenAI
- Vicki Cheung Co-founder, OpenAI
- Wojciech Zaremba Co-founder, OpenAI
- Hannah Koch Product Manager, Codex
- Ian Kivlichan Safety researcher; credited Moderation model contributor
- John Hallman Credited gpt-oss contributor; post-training researcher
- Justin Beckwith OpenAI engineering leader; Guardrails repository contributor
- Justin Uberti Head of Realtime AI; Member of Technical Staff
- Nikunj Handa Head of Product, OpenAI API
- Rennie Song Member of Technical Staff; Dots engineer
Questions
Who is Greg Brockman?
Greg Brockman co-founded OpenAI in 2015 and is its president, having earlier served as its CTO. Before OpenAI he joined Stripe in 2010 and was its CTO from 2013 until 2015.
What does OpenAI and Stripe, OpenAI make?
Anchor Terminal lists Agentic Commerce Protocol (ACP), GPT-Live, gpt-oss-120b, gpt-oss-20b, OpenAI Agents SDK, OpenAI API, OpenAI Codex, OpenAI Decisions API, Dots, OpenAI embeddings, OpenAI Guardrails, OpenAI Image API, OpenAI Moderation API, OpenAI Realtime API, OpenAI Sora API and OpenAI Speech to Text from OpenAI and Stripe, OpenAI. Open checkout spec from OpenAI and Stripe (2025-09-29).
How are Greg's tools graded?
Agentic Commerce Protocol (ACP) is graded C, 61.3 out of 100; GPT-Live is graded B, 66.9 out of 100; gpt-oss-120b is graded BB, 70.2 out of 100; gpt-oss-20b is graded B, 69.9 out of 100; OpenAI Agents SDK is graded AA, 86.2 out of 100; OpenAI API is graded A, 82.9 out of 100; OpenAI Codex is graded BB, 73.5 out of 100; OpenAI Decisions API is graded BB, 73.1 out of 100; Dots is graded F, 28.8 out of 100; OpenAI embeddings is graded BB, 72.2 out of 100; OpenAI Guardrails is graded B, 69.5 out of 100; OpenAI Image API is graded BB, 72.4 out of 100; OpenAI Moderation API is graded BB, 71.4 out of 100; OpenAI Realtime API is graded B, 63.4 out of 100; OpenAI Sora API is graded F, 9.4 out of 100; OpenAI Speech to Text is graded BB, 72.6 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (30)
- https://www.agenticcommerce.dev
- https://raw.githubusercontent.com/agentic-commerce-protocol/agentic-commerce-protocol/main/MAINTAINERS.md
- https://raw.githubusercontent.com/agentic-commerce-protocol/agentic-commerce-protocol/main/README.md
- https://www.ycombinator.com/companies/stripe
- https://en.wikipedia.org/wiki/OpenAI
- https://openai.com/index/continuous-voice-interaction-with-gpt-live/
- https://www.linkedin.com/in/juberti/details/experience/
- https://www.linkedin.com/in/juberti
- 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
- https://openai.com/index/introducing-gpt-oss/
- https://www.linkedin.com/in/john-hallman/
- https://www.linkedin.com/in/nikunjhanda/
- https://x.com/nikunjhanda
- https://developers.openai.com/
- https://www.linkedin.com/in/hannah-koch-a4489457/
- https://www.linkedin.com/search/results/people/?keywords=%22Codex%22%20%22OpenAI%22%20%22lead%22
- https://x.com/rennsong
- https://openai.com/index/introducing-dots/
- 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/upgrading-the-moderation-api-with-our-new-multimodal-moderation-model/
- https://www.linkedin.com/in/ian-kivlichan/
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.