Jamie de Graaf

Dutch AI language quality · Rotterdam, the Netherlands

Dutch language expert for AI quality and LLM evaluation

If Dutch AI output is grammatically correct but still sounds translated, uses the wrong register, misses part of the instruction or gives a weak justification, I can review it before it reaches users or becomes part of a benchmark or training workflow.

I’m Jamie de Graaf, an independent Dutch language and content specialist based in Rotterdam, the Netherlands. I work with AI teams, data labs and language-quality teams on written and spoken Dutch (nl-NL), evaluation criteria, model comparisons and structured feedback on recurring language errors.

Locale

Dutch for the Netherlands (nl-NL)

Review scope

LLM output, localisation and speech

Output

Findings, corrections and clear rationale

Review scope

What can I review in a Dutch AI system?

The useful question is not whether a sentence contains a spelling error. It is whether the Dutch output is correct for the task, sounds natural to a Dutch user and can be judged consistently by your team. I can review the areas below as a one-off audit, a calibration round or part of an ongoing QA workflow.

01

Dutch LLM output and response quality

I review answers for meaning, factual support within the material provided, instruction following, relevance, tone and natural Dutch. I flag output that looks acceptable at first glance but is translated too literally, overstates the source or answers a different question.

02

Translation and localisation QA

I compare English source text with Dutch output and check whether the meaning, tone and user intent survive the translation. I also keep nl-NL separate from Belgian Dutch where the product or dataset requires a Netherlands-specific locale.

03

Rubric and evaluator calibration

If reviewers keep disagreeing, I check whether the criteria are specific enough to apply consistently. That can include tightening definitions, adding Dutch examples and making the evidence required for a pass, fail or preference decision explicit.

04

Dutch voice and speech QA

I review pronunciation, stress, pace, intonation, accent consistency and whether spoken output sounds natural for Dutch users. Correct words are not enough if the voice places stress unnaturally or follows an English speech pattern.

05

Reasoning, ranking and written feedback

I can compare candidate responses, review model or evaluator rationales and explain why one answer is stronger than another. The feedback stays tied to the task and evidence rather than relying on vague labels such as “better style”.

When human review matters

When should you bring in a native Dutch AI reviewer?

Bring in a native Dutch reviewer when a release, benchmark or evaluation depends on more than spelling and grammar. The problem is often context: a sentence can be formally correct and still use the wrong register, copy English structure or miss what a Dutch user would understand from it.

Human review is particularly useful when:

  • You are preparing Dutch output for production or a major model update.
  • Automatic checks pass, but Dutch users or reviewers still report quality problems.
  • Your team needs a calibrated set of Dutch examples for human or model-based evaluation.
  • Reviewers disagree about tone, naturalness, instruction following or preference rankings.
  • The product mixes Netherlands Dutch with Belgian wording or inconsistent register.
  • You are testing Dutch speech, synthetic voice or spoken assistant output.

Deliverables

What do you receive from a Dutch language review?

The format depends on your workflow, but the review should leave your team with decisions it can act on. I can work in an existing annotation or QA tool, or return findings in a structured format agreed before the review starts.

Issue-level findings

Each flagged item is tied to the relevant problem: meaning, instruction following, localisation, register, fluency, unsupported reasoning, speech quality or another agreed category.

Corrections and better examples

Where useful, I provide corrected Dutch or an example of what a stronger answer would look like, rather than simply marking the original as wrong.

Reasons a reviewer can use

I explain the evidence behind the decision so the result can be checked, discussed and reused for calibration.

Recurring patterns

If the same problem appears repeatedly, I separate the pattern from the individual examples so your team can address the prompt, rubric, source text or model behaviour upstream.

Background

Why I review more than grammar

My Dutch AI work sits on top of language, content, web and structured evaluation experience rather than being a standalone annotation skill.

Language, content and web

  • Independent online marketer, SEO copywriter and content manager since 2013, working with landing pages, editorial content and performance-driven websites.
  • Years of working in WordPress and content systems make it natural to review language in context: navigation, UI copy, metadata, landing pages and the surrounding user journey.

Multilingual and AI evaluation

  • Dutch is my first language. I also work in English, French, Spanish, Brazilian Portuguese and Italian, which helps when Dutch output has inherited structure or meaning from another language.
  • My AI work includes LLM evaluation, prompt review and structured quality assessment. I am comfortable working inside existing guidelines, error taxonomies and reviewer workflows.

AI courses and certifications

Formal courses complement the practical review work. I have completed generative-AI and prompt-engineering programmes from Google, Vanderbilt University and Anthropic.

Review process

How does a Dutch AI language review work?

A useful review starts by agreeing what the output is supposed to do and what should count as a failure. That keeps the work consistent and prevents a language review from turning into a list of personal preferences.

  1. Define the use case and failure criteria

    You share the product or task, target locale, examples and current criteria. We make clear which decisions belong to language review and which require separate domain expertise.

  2. Calibrate on a small sample

    For larger or recurring work, a small first batch exposes ambiguous instructions and helps align severity, error categories and judgement calls before the main review.

  3. Review and explain the decisions

    I assess the agreed criteria, record the reason for material findings and add corrected or stronger Dutch examples where they help your team act on the result.

  4. Separate one-off errors from recurring patterns

    I flag repeated issues separately so you can see whether the underlying problem is the model output, source text, prompt, rubric or evaluator guidance.

Project fit

What should you send before a Dutch AI review starts?

A short, concrete brief is enough to establish whether I am the right reviewer. The most useful starting material is the actual output and the rules your team is already using.

Use case and locale

What the AI output is used for, who reads or hears it and whether the target is specifically Dutch for the Netherlands (nl-NL).

Representative examples

A sample of prompts, outputs, source text or speech that shows the real task. That is more useful than a generic description of the model.

Current evaluation rules

Your existing rubric, error categories, pass/fail rules or reviewer instructions, if you have them. I can work inside an established workflow and flag ambiguous criteria.

Volume, timing and output format

The expected number of items or hours, deadline and the format in which your team needs findings returned.

Buyer questions

Frequently asked questions about Dutch AI language review

What Dutch variant do you review?

I mainly review Dutch for the Netherlands (nl-NL). I can flag obvious differences with Belgian Dutch, but I do not position myself as a native Flemish reviewer.

What types of Dutch AI output can you review?

I can review Dutch AI output including LLM responses, translated or localised content, preference comparisons, evaluator rationales, prompts, rubrics and spoken or synthetic-voice output. The exact scope is agreed from representative examples.

Can you review English source text too?

Yes, I can review English source text too. I regularly work with English-Dutch pairs and can check whether meaning, tone and instructions survive the move into Dutch.

Can you follow our existing evaluation workflow?

Yes, I can follow your existing evaluation workflow. I am comfortable working with predefined guidelines, error taxonomies, annotation tools and output formats, and I will flag criteria that allow materially different interpretations.

Can you help calibrate Dutch evaluation criteria?

Yes, I can help calibrate Dutch evaluation criteria. That can include reviewing definitions, testing them against real examples, adding nl-NL examples and identifying where different reviewers are likely to make different judgement calls.

Do you work with confidential data?

Yes, I can work with confidential data once we have agreed how it is accessed and handled. I do not publish client names, datasets, internal guidelines or project details without permission.

How much does Dutch AI language review cost?

The cost of Dutch AI language review depends on the type of review, the volume, the level of explanation required, the workflow and the turnaround time. A small calibration batch, a voice review and an ongoing LLM-evaluation workflow are different assignments, so I do not publish one generic rate for all three.

Can you verify specialist legal, medical or technical facts as well?

I can review the Dutch language, the stated reasoning and whether a claim is supported by source material you provide. If the task requires independent specialist judgement in law, medicine or another technical field, that part should be reviewed by a qualified domain expert.

Is this service the same as applying for AI training jobs?

No, this service is not the same as applying for AI training jobs. This page is for AI teams and companies that need Dutch language review. If you are looking for paid AI language work yourself, see AI language expert jobs.

Dutch AI language quality

Send a sample of the Dutch output you need reviewed

Tell me what the output is used for, which Dutch locale you need, what your team is currently checking and what a useful result needs to look like. I can then tell you whether the review fits my scope.

Discuss your Dutch AI review