AI testing services

AI systems are built differently. So is our testing.

Your AI works in the demo. We find out if it works in production. LLM evaluation, model testing, deepfake detection, and AI feature QA — backed by the methodology Zoom used to publicly benchmark their AI against competitors.

Colorful abstract 3D shapes representing diverse AI model components being tested

Join the group of Startups & Fortune 500 companies that care about quality.

  • Discord
  • Twilio
  • Microsoft
  • Zoom
  • Pinterest
The challenge

Moving fast with AI is easy. Controlling it is not.

Traditional QA catches crashes, broken layouts, and failed API calls. It doesn't catch a chatbot that confidently fabricates information. It doesn't flag a transcription engine that falls apart with accented speech. It doesn't measure whether your AI summary dropped the one detail your customer actually needed.

AI failures are subtle, probabilistic, and context-dependent. They don't throw errors, they erode trust. And by the time your users notice, the damage is reputational, not just technical.

Hallucinations in production

Your LLM generates confident, plausible answers that are factually wrong. Users can't tell. Your support team finds out from complaints.

Silent accuracy degradation

Your model worked at launch. But data drift, new edge cases, and changing inputs have quietly eroded performance and nothing in your monitoring catches it.

Bias and safety gaps

Your AI treats some user groups differently than others, or responds to adversarial prompts in ways that create legal and brand risk.

Competitive blind spots

You don't know how your AI features compare to competitors and neither do your customers, which means they're guessing too.

No defensible quality baseline

You can't answer "how good is our AI?" with a number. Stakeholders, customers, and regulators are starting to ask.

Which of these risks are you carrying? Let's find out!

Book a free assessment
Coverage

If it's powered by AI, we can test it

We test the full stack — from the model's accuracy to the feature your users actually see. Every engagement is scoped to your technology, your use cases, and the quality questions your team needs answered.

Smartphone displaying AI chatbot interface being evaluated for quality

Chatbots, assistants, summarization, and content generation. We evaluate hallucination rates, intent understanding, toxicity, bias, safety guardrails, and prompt robustness — systematically, not with spot-checks.

Tell us what you're building. We'll tell you exactly how to test it. Talk to an Engineer

Our approach

A testing process built for how AI actually fails

You can't test AI the way you test a login form. Outputs are non-deterministic, quality is contextual, and edge cases are infinite. Our AI testing methodology is designed specifically for these challenges. It's the same approach Zoom commissioned us to use when they needed independent, publishable proof that their AI outperformed the competition.

  1. Scope & test design

    We work with your team to define what "good" looks like for your specific AI features. The conditions, the quality thresholds, and the scenarios that matter for your users and your market.

  2. Custom test media & ground truth

    We prepare tailored test inputs — clean samples, controlled distortions, real-world scenarios — along with human-verified reference outputs that establish the baseline your AI is measured against.

  3. Systematic test execution

    Your AI features are run against the prepared inputs under controlled conditions. All outputs are captured systematically for apples-to-apples comparison.

  4. Output normalization

    Generated and reference outputs are cleaned and standardized, removing formatting noise and metadata artifacts so evaluation reflects true content quality, not cosmetic differences.

  5. Metric extraction, validation & reporting

    We extract performance metrics, validate them for statistical reliability, and deliver visual reports that show exactly where your AI excels, where it struggles, and what to fix first.

    This methodology is peer-tested. It produced the results Zoom published in their 2025 AI Performance Report.

Metrics

The numbers that move AI quality forward

Every AI testing engagement produces metrics tailored to your technology and use case. These aren't vanity dashboards, they're the numbers your engineering team needs to prioritize, your product team needs to make go/no-go calls, and your leadership needs to report progress.

QA engineer with headphones reviewing AI model test results on screen

Transcription & ASR

Word Error Rate (multiple variants for different error types), LLM-as-a-judge qualitative evaluation, and Speaker Label Accuracy.

Meeting summaries

Custom composite evaluation scores combining completeness, accuracy, and entity recognition.

Closed captions

Custom composite evaluation scores combining completeness, accuracy, and entity recognition.

Translation

MetricX and COMET — industry-standard metrics that let you benchmark against competitors and track improvement over time.

Chatbots & assistants

Answer status (boolean pass/fail or multi-level quality scale), usefulness-aware scoring that distinguishes partial answers from wrong answers, and response latency from prompt to complete output.

What the metrics reveal

Strengths and weaknesses by condition

Which features or models perform well on clean inputs and where they break under real-world conditions.

Where scores and usability diverge

Cases where a transcript is technically "correct" by WER but practically unusable for the end user.

Roadmap validation

Whether the improvements your team shipped actually delivered measurable, user-visible quality gains.

Competitive positioning

How your AI features stack up against alternatives in the market.

Want to see what our reports look like? Request a sample report

Data labeling

Testing is only as good as the data behind it

Your model's ceiling is your data's quality. Inaccurate labels don't just reduce accuracy, they embed biases and failure modes that are expensive to diagnose after deployment.

Photo of a cat and dog with AI object detection bounding boxes and labels

Manual annotation

Our Europe-based annotation team creates clean, high-quality baseline datasets through human-in-the-loop labeling — the precision that automated tools alone can't guarantee, especially for ambiguous or domain-specific content.

Automated data extension

Once a reliable baseline is established, we extend your datasets algorithmically at scale, generating synthetic variations, augmenting edge cases, and validating everything against ground truth. Larger, more diverse training sets without sacrificing quality.

Need training data you can trust? Let's talk!

Deepfake detection testing

Know what's real. Know if your tools work.

Deepfakes are a business risk for platforms evaluating user-uploaded content, for organizations concerned about synthetic media targeting their brand, and for any company whose trust depends on media authenticity.

We provide two services: direct analysis of your media (images, video, audio, text) to determine if it's been synthetically manipulated, and independent evaluation of your deepfake detection tools against curated datasets to measure real-world reliability.

Face with deepfake detection mesh overlay and red tracking markers

Our process

End-to-end project management with optional subscription access for continuous monitoring.

1

Dataset creation

Balanced datasets with both genuine and deepfake content for rigorous, fair evaluation.

2

Test execution

Detection systems evaluated alongside specialized partners, collecting granular accuracy data.

3

Analysis & validation

Results validated against industry benchmarks so conclusions are trustworthy and defensible.

4

Actionable reporting

Prioritized insights your team can use to improve detection or make procurement decisions.

Concerned about deepfakes? Get an independent assessment

Business outcomes

What your team gains when AI testing is done properly

The organizations leading on AI quality aren't just testing more. They're testing differently. With independent methodology, tailored metrics, and results that hold up to scrutiny.

Fewer post-release incidents

Catch hallucinations, accuracy degradation, and edge case failures before they reach users, not after your support queue tells you about them.

Faster release cycles

Remove the uncertainty that slows go/no-go decisions. When your team has metrics, they ship with confidence instead of hesitation.

Lower cost of quality

Fix AI failures at test time, not in production. The earlier a failure is found, the cheaper it is to resolve.

Defensible quality claims

Independent, methodology-backed results your team can show to customers, regulators, and leadership, not just internal dashboards.

Competitive clarity

Know exactly how your AI features compare to alternatives in the market, before your customers find out for themselves.

Reduced reputational risk

AI failures erode trust quietly and quickly. Independent validation gives you the evidence that your AI is ready before it's exposed.

Case study

How Zoom proved their AI was better. With our data.

Zoom didn't ask us to make them look good. They asked us to tell the truth.

Zoom needed independent, third-party evidence that their AI meeting features outperformed competitors. Internal benchmarks wouldn't be credible enough for public claims. They needed an evaluation their customers and the market would trust.

We designed and executed a competitive evaluation of AI-powered meeting features across multiple vendors in real-life scenarios. Transcription and post-meeting summary quality were compared using Word Error Rate analysis and LLM-based quality evaluation, capturing both statistical accuracy and real-world usability.

Key results:

  • Zoom captions were up to 13× more stable, requiring far fewer rewrites than competing platforms.
  • Zoom delivered the lowest translation error rates with up to 28% fewer errors than competitors in every language tested.

Zoom published our findings in their public AI Performance Report, giving prospective customers independent, credible evidence of their platform's quality advantage. The evaluation became a marketing and sales asset, not just a QA exercise.

Read the Zoom AI Performance Report 2025
Zoom meeting interface showing AI Companion features including captions and transcription

Want results your customers and market will believe? Let's design your evaluation

Who benefits

AI testing services for teams shipping AI into production

CTOs & engineering leads

You need to know if your AI is production-ready, not based on internal demos, but on independent, metrics-driven evaluation against real-world conditions. You need a QA partner who understands AI failure modes, not just traditional software bugs.

Product managers

You're shipping AI features on a deadline and need quality data to make go/no-go decisions. You need to know which features are ready, which need more work, and how you compare to competitors — before launch, not after.

Startup founders

You're about to put your AI product in front of customers or investors. You need independent validation that it works, a credible quality baseline that builds confidence in your product and your team.

Regulated industries

You operate in an environment where AI decisions carry compliance, safety, or legal implications. You need documented, auditable evaluation with defensible methodology — not a spreadsheet from your own team.

Whichever role you're in, the first step is the same Get a free assessment

Why teams choose us

We know what we're looking for because we've found it before

Most QA teams learn what to look for by reading about AI failures. We've spent years finding them — across LLMs, ML models, computer vision, transcription, and AI-powered features in production. That experience shapes every test we design, every metric we choose, and every report we deliver.

TestDevLab QA engineer working at desk with multiple screens

We don't build AI products. We don't sell AI tools. Our only incentive is accurate evaluation which is why companies like Zoom trust us to produce results they publish publicly.

See the difference in your first engagement Request a consultation

How to get started

Start with a conversation. Leave with a plan.

1

Free assessment call

We learn about your AI product, your quality concerns, and what decisions you need the testing to support. You get an honest recommendation on scope, including what you don't need.

2

Test design & scoping

We define the evaluation framework — technologies, features, conditions, metrics, and success criteria — tailored to your specific product and market.

3

Execution & delivery

We run the evaluation using our methodology, deliver visual reports with prioritized findings, and walk your team through the results and recommended next steps.

Start with a free assessment!

No commitment, no sales pitch.

Schedule your call

No lock-in! Every engagement starts as a standalone project. You scale only if the results justify it.

FAQ

Questions we get asked before the first call

Traditional QA catches crashes, broken layouts, and failed API calls. AI testing is different because AI failures are probabilistic, contextual, and often invisible — a chatbot that fabricates information doesn't throw an error, it just erodes trust. Our methodology is designed specifically for outputs that are non-deterministic, quality standards that are contextual, and edge cases that are effectively infinite.
We test the full AI stack — LLMs, ML models, computer vision, transcription, summarisation, translation, chatbots, RAG pipelines, agentic workflows, and AI-powered product features. If it's powered by AI and it has to perform in production, we can test it.
The timeline depends on the scope, complexity of the AI system, and the types of testing involved. During the scoping call, we'll review your goals and environment and provide a clear timeline before any work begins.
Yes. We work alongside your internal team, not instead of it. Most clients use us for the independent, AI-specific evaluation layer their existing QA process wasn't designed to cover.
When your QA comes from the team that built the AI, you get confirmation. When it comes from us, you get evidence. Independent evaluation removes the blind spots that come from proximity — the assumptions baked into your test design, the edge cases your team didn't think to look for, and the bias toward finding what you expect to find.
Metrics are tailored to your technology and use case. For transcription we use Word Error Rate variants and LLM-based evaluation. For translation, MetricX and COMET. For chatbots, pass/fail and multi-level quality scoring. For summaries, composite scores that cover completeness, accuracy, and entity recognition. Every engagement produces metrics your engineering, product, and leadership teams can act on.
Yes — and some clients do. Our methodology and reporting are designed to produce findings that are defensible, credible, and usable in public-facing materials. Zoom commissioned us specifically to produce results they could publish in their public AI Performance Report.
Especially for startups. If you're about to put your AI in front of customers or investors, independent validation that it works is one of the most valuable things you can have. It builds credibility with your market and confidence within your team, before the stakes get higher.
A focused conversation about your AI product, your quality concerns, and what decisions you need the testing to support. You'll get an honest recommendation on scope, including what you don't need. No commitment, no sales pitch.
We offer the full range of QA services, including AI-augmented software testing that can reduce regression cycles by 50–70%. AI testing is one of our expertise. If your product combines traditional software with AI features, we can cover both.
What's next

Your AI works in the demo. Let's find out if it works in production.

Independent, metrics-driven AI testing that gives your team the evidence to ship with confidence and gives your customers the proof to trust what you've built.

  • 500+ QA engineers across Europe
  • 14+ years of enterprise QA expertise
  • Trusted by Zoom for public AI benchmarks
  • Independent, vendor-neutral methodology
  • From data labeling to competitive evaluation — full AI quality lifecycle
TestDevLab QA engineer working on AI testing at her desk