Appen

Coverage score

6 / 25 · rank 40 of 88

The same formula is applied to every entry. It counts stated coverage and confirmed figures; it does not measure quality. How the score works.

AI products tested

As stated by the vendor on 2026-11-09

• LLM applications

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Testing services

As stated by the vendor on 2026-11-09

• LLM output evaluation
• Prompt and model regression testing
• Bias and fairness audit
• Compliance and conformity assessment support
• Production monitoring and drift testing

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Stated scope

Appen states that it provides human evaluation of AI model outputs, covering accuracy, bias and regulatory compliance. The vendor's model evaluation page lists six services: evaluation of outputs against factual ground truth, regulatory and ethics audits against the EU AI Act and NIST AI RMF, side-by-side human comparison of model versions, bias testing across demographic groups and languages, ongoing post-deployment evaluation to detect drift, and rubric design for LLM evaluation pipelines.ev-appen-09

How the vendor describes itself

As described by the vendor; summarised on 2026-11-09. Client names, performance percentages and prices are left out.

Appen states that it was founded in Sydney in 1996, initially focused on speech and language data for early NLP systems. Its About page names AI training data services, covering custom data collection, annotation and evaluation, and coding datasets. The vendor states that it is ASX-listed and operates across North America, Europe, Asia-Pacific and the Philippines.ev-appen-20

Evidence

Every source opened for this entry, with retrieval date and verification date. Verified by AI Testing Vendors.

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