01
Prove your product is getting better
Score every release against the rubrics you actually care about. Quality becomes a number you can track, not a vibe you debate.
02
Judgment with the “why” attached
Binary pass/fail misses the point. Capture rich rationales that show not just where your AI falls short, but how to make it better.
03
Ground truth your LLM judges trust
Build golden sets and calibration benchmarks so LLM-as-judge systems stay aligned with the humans who define quality.
Trusted by leading AI product builders
























How it works
1
Draft projects in seconds
Point us at your AI outputs and your rubrics (or build them with us), and we'll instantly create an evaluation ready for human raters.

2
Recruit from anywhere
3
Watch responses roll in
4
Turn insight into action
How AI product teams are using Voicepanel
Click a use case to see how teams evaluate and improve AI products.
Failure mode analysis
Find where your AI product breaks—and why
Strong AI products fail in patterned ways. Run a focused study with real people to surface where outputs break down—confusion, mistrust, wrong answers, awkward tone—and the reasons behind each miss, so your team knows what to fix next.
Uncover recurring failure modes with real users and experts
Capture the “why” behind each miss with voice and written rationales
Turn findings into a clear fix list for product and model teams
Why use Voicepanel for product evaluations?
AI product teams usually choose between labeling vendors built for model training and brittle DIY stacks bolted to an LLM judge. Voicepanel is built specifically for product evaluations, with human signal, recruitment, and guardrails included.
![]() | Model labeling vendorse.g. Mercor, Scale AI, Surge AI | DIY + LLM judgee.g. custom UI, Prolific, GPT-as-judge | |
|---|---|---|---|
Preference & rubric workflows | Partial | ||
Built-in evaluator recruitment | No | ||
Recruit your own evaluators | Unlimited | Add-on | |
Processed video rationales | Partial | No | |
API & MCP support | Limited | Partial | |
Custom permissions & guardrails | Partial | No | |
Enterprise security & compliance | Partial | No |
Ready to improve your AI product quality?
See how Voicepanel helps teams evaluate and improve AI product experiences.

