Articles Topics Resources About Join the community →
For people who test AI

Where AI testing becomes a discipline.

Practical guides, real evaluation frameworks, and a growing community for people who test AI systems for a living — not for the leaderboard.

EKMAJDSR+
Read by AI testers, QA engineers & product teams
Trending

Latest in AI testing

View all articles →
FAIL
Evaluation Design

Your AI passed the benchmark. Then it met a human.

Leaderboard scores tell you how a model performs on someone else's questions — not how it behaves with your users, your data, and your edge cases. Here's how to build evaluation that closes the gap.

BTBy Banu Tutuncu · 8 min read
Human Testing

What human evaluators catch that your metrics never will

6 min read
DRIFT
LLM Behavior

How to write rubrics your whole team actually agrees on

9 min read
Red Teaming

A starter playbook for adversarial testing of LLM apps

11 min read
Explore

Browse by topic

Evaluation Design Human Testing LLM Behavior Red Teaming Benchmarks & Gaps Rubrics & Verdicts AI QA Careers Case Studies

The AI Evaluation Starter Kit

Free rubric templates, a 40-case test library, and a verdict framework — everything you need to run your first structured human evaluation this week.

Get free access →
// inside the kit
📋Rubric templates for 5 common AI use cases
🧪40 ready-to-run test cases & edge cases
⚖️PASS / FLAG / FAIL verdict framework
📊Findings report template (Notion + Docs)
BT

Banu Tutuncu

Founder & Editor · AI Evaluation Consultant
BaseLondon, UK
FocusHuman testing & eval design
Writes atmedium.com/@banusencan
Emailbanu@theagiletester.co.uk
StatusOpen to collaborations
About

Built by someone who tests AI for a living.

I'm an independent AI evaluation consultant. I help teams understand how their models behave in real-world use through structured human testing — and I started AI Testing Lab to share what that work actually looks like.

"A model that's never been evaluated by humans hasn't been evaluated. It's been benchmarked."

Everything here comes from real engagements: the rubrics that worked, the failure modes that surprised everyone, and the methods that turn "it feels off" into something you can fix.

Read my essays on Medium →
COMING SOON

A community for people who test AI is on the way.

Peer reviews of your eval setups, shared test libraries, live sessions, and honest conversations about what actually breaks. Join the early list — founding members get in first, free.

AKYLRMTSNBEÇ+