Building a listed tool

Wenjun Zeng

Lead author, ShieldGemma and ShieldGemma 2 technical reports, named behind the ShieldGemma listing on Anchor Terminal.

Lead author, ShieldGemma and ShieldGemma 2 technical reports

No about written yet. If this is you, link your account and write one yourself.

What Wenjun builds

  • ShieldGemma C · Guardrails & safety filters

    ShieldGemma is Google's family of open-weight safety classifiers built on Gemma. ShieldGemma 1 (2B, 9B, 27B) scores English text against hate, harassment, dangerous and sexual content policies, and ShieldGemma 2 (4B) scores images. The owner runs them.

    Lead author, ShieldGemma and ShieldGemma 2 technical reports, researched 6 November 2026 · the people behind it

Works with

Questions

Who is Wenjun Zeng?

Wenjun Zeng is lead author at ShieldGemma and ShieldGemma 2 technical reports.

What does Google DeepMind make?

Anchor Terminal lists ShieldGemma from Google DeepMind. ShieldGemma is Google's family of open-weight safety classifiers built on Gemma. ShieldGemma 1 (2B, 9B, 27B) scores English text against hate, harassment, dangerous and sexual content policies, and ShieldGemma 2 (4B) scores images. The owner runs them.

How are Wenjun's tools graded?

ShieldGemma is graded C, 54 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

Sources (12)

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. If a page is about you, link your account from it to write the about and set the links yourself. For a photo, a correction or to have a page removed, write to privacy@anchorterminal.com.

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.