Check if your AI sounds like your brand, stays safe, and behaves consistently. Bring your Custom GPT voice, hosted APIs, and local models. Get detailed reports in minutes, not days.
Testing AI behavior is hard. Here’s the problem we’re solving.
You ship a new model version. Within hours, users notice the tone feels wrong. Support gets complaints about inappropriate responses. Your brand voice has changed.
Standard tests check if answers are correct, but miss tone and personality shifts. You need a way to measure brand voice, safety, and consistency before shipping.
Alignmenter measures how your AI behaves. Run tests in minutes, compare different models side-by-side, and catch problems before shipping.
Works with OpenAI, custom GPTs, Anthropic, and local models. Your data stays on your computer. Everything runs locally with shareable HTML reports.
Consistent, repeatable scores that show what’s actually happening
Does it sound like your brand?
Checks if AI responses match your brand’s voice and personality. Compares writing style, tone, and word choices against examples you provide. Shows confidence scores so you know when something’s off.
0.6 × style_sim + 0.25 × traits + 0.15 × lexiconCatch harmful responses early
Combines keyword filters with AI judges to find safety issues. Set spending limits for AI reviewers and get offline backups when you need them. Tracks how well different checks agree.
min(1 - violation_rate, judge_score)Spot unexpected behavior changes
Measures if your AI stays consistent. Flags when responses vary wildly in a single session. Compares versions to catch changes between releases you didn’t intend.
1 - normalized_variance(embeddings)Install with one command, run your first test, and see a full report
Whether you’re validating releases, monitoring brand voice, or conducting research, Alignmenter integrates into your process.
Run brand voice, safety, and consistency checks before each release. Compare GPT-4o vs Claude on real conversations. Catch problems automatically in your build pipeline.
Sync your Custom GPT instructions into Alignmenter, make sure every release stays on-brand, and track voice consistency over time. Share easy-to-read HTML reports with your team.
Use keyword filters plus AI judges to catch safety issues. Control spending with budget limits. Export complete audit trails for compliance reviews.
Test how well different models match specific personalities. Every run produces the same results with saved outputs. Build custom tests and share them with others.
Open source means you can see exactly how it works. Your data never leaves your computer. You can extend and customize everything to fit your needs.
We never upload your data anywhere. Everything runs on your computer or your servers. Optional tools help remove sensitive information.
Free for commercial use. Copy it, modify it, use it in your products. Community contributions welcome.
Plug in new AI providers, create custom tests, and build your own scoring methods. Designed to grow with your needs.
Join developers building better AI testing tools. Install the free CLI and run your first test in minutes.