# Gideon Mendels

> Gideon Mendels is co-founder and CEO. Opik API + MCP on Anchor Terminal, with grades, an about and public profiles.

- Canonical: https://www.anchorterminal.com/people/gideon-mendels/
- Markdown: https://www.anchorterminal.com/people/gideon-mendels/index.md (~950 tokens)
- Slim: https://www.anchorterminal.com/people/gideon-mendels/index.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/people/gideon-mendels/index.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Co-founder and CEO.

Gideon Mendels is co-founder and CEO of Comet, which launched in 2017 and makes Opik, an open-source platform for tracing and evaluating AI applications. He previously co-founded GroupWize, which trained and deployed NLP models on chat data, and worked on hate speech and deception detection at Columbia University and Google.

- LinkedIn: https://www.linkedin.com/in/gideon-mendels/
- X: https://x.com/gidim

## What Gideon builds

- [Opik API + MCP](https://www.anchorterminal.com/tools/opik.md), graded BB, 71.7/100, in Agent observability & evals. Opik is Comet's open-source platform for tracing, evaluating and optimising LLM apps and agents, under Apache-2.0. It runs self-hosted or on Comet's Opik Cloud, with a REST API, Python and TypeScript SDKs and a hosted MCP server. Co-founder and CEO, researched 2026-10-26.

## Works with

- [Jacques Verré](https://www.anchorterminal.com/people/jacques-verre/), Head of Product
- [Nimrod Lahav](https://www.anchorterminal.com/people/nimrod-lahav/), Co-founder and CTO

## Backed by

- [Trilogy Equity Partners](https://www.anchorterminal.com/investors/trilogy-equity-partners/)
- [Two Sigma Ventures](https://www.anchorterminal.com/investors/two-sigma-ventures/)
- [Founders' Co-op](https://www.anchorterminal.com/investors/founders-co-op/)
- [Scale Venture Partners](https://www.anchorterminal.com/investors/scale-venture-partners/)
- [OpenView](https://www.anchorterminal.com/investors/openview/)

## Questions

### Who is Gideon Mendels?

Gideon Mendels is co-founder and CEO of Comet, which launched in 2017 and makes Opik, an open-source platform for tracing and evaluating AI applications. He previously co-founded GroupWize, which trained and deployed NLP models on chat data, and worked on hate speech and deception detection at Columbia University and Google.

### What does Comet make?

Anchor Terminal lists Opik API + MCP from Comet. Opik is Comet's open-source platform for tracing, evaluating and optimising LLM apps and agents, under Apache-2.0. It runs self-hosted or on Comet's Opik Cloud, with a REST API, Python and TypeScript SDKs and a hosted MCP server.

### Who has invested in Comet?

The sources our research read name Trilogy Equity Partners, Two Sigma Ventures, Founders' Co-op, Scale Venture Partners and OpenView.

### How are Gideon's tools graded?

Opik API + MCP is graded BB, 71.7 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://www.comet.com/site/about-us/
- https://www.comet.com/site/
- https://www.comet.com/site/about-us/contact-us/

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, /about/#author). 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.

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp