LLM Evaluation Services

LLM evaluation services to know how your model really performs.

LLM evaluation services combining human and rubric-based scoring of model quality, safety and factuality — with domain experts grading the outputs automated metrics miss, across 25+ languages.

98%accuracy after QASchema checksConsistencyGold-set auditHuman review
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Meet Graveiens AI

A quick look at how Graveiens AI partners with teams to deliver human data for AI models.

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700+
Expert evaluators
25+
Languages
4-stage
QA workflow
98%
Reviewer agreement
Why human evaluation

Model evaluation that catches what benchmarks miss

Leaderboard scores rarely tell you if a model is safe to ship. Our trained human raters and STEM/domain SMEs assess your outputs, scoring reasoning, factuality, safety and helpfulness against a rubric you define. Pair scoring with our LLM fine-tuning and data validation to close the loop from measurement to improvement.

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98%accuracy after QASchema checksConsistencyGold-set auditHuman review
What we evaluate

Our LLM evaluation framework: rigorous, human-led assessment

Built as a repeatable LLM evaluation framework, we score model outputs against your rubric across quality, safety, reasoning and factuality — and surface the failure modes that decide whether a model is ready to ship.

Quality & Helpfulness

  • Rubric-based response grading
  • Task-completion scoring
  • Coherence & instruction-following
  • Head-to-head model comparison

Safety & Robustness

  • Toxicity & bias testing
  • Adversarial & jailbreak testing
  • Policy-compliance review
  • Edge-case discovery

Factuality & Reasoning

  • Hallucination detection
  • Step-by-step reasoning grading
  • STEM & code correctness
  • Citation & source checking

Multilingual Evaluation

  • Quality across 25+ languages
  • Cultural & localization checks
  • Native-speaker review
  • Locale-specific rubrics

Benchmarking

  • Custom benchmark design
  • Model-vs-model scoring
  • Regression tracking
  • Reproducible protocols

Validation & QA

  • Gold-set calibration
  • Inter-rater agreement
  • Bias & drift monitoring
  • Audit-ready reporting
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LLM evaluation services

Human evaluation that tells you if your model is really better

Automated metrics only go so far — real quality needs human judgement. Graveiens AI provides expert LLM evaluation: rubric-based scoring, side-by-side comparisons, factuality and safety checks, and red-teaming, delivered by calibrated raters and subject-matter experts across 25+ languages.

We design scoring to your criteria, calibrate against gold standards, and return measured, defensible scores through a four-stage quality workflow — so you can trust the numbers behind a release decision.

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PromptResponse APreferredResponse B
Capabilities

How we evaluate models

From rubric scoring to safety and factuality.

Rubric scoring

Detailed, criteria-based scoring for accuracy, tone and helpfulness.

Side-by-side comparison

Pairwise preference judgements between models or versions.

Factuality & grounding

Fact-checking and citation review for reliable outputs.

Safety & red-teaming

Adversarial testing and safety scoring for robust models.

Use cases

Where scoring is used

Representative programmes we support.

Release decisions

Human scores to gate model releases with confidence.

Domain quality

Expert grading for medical, legal and STEM outputs.

Multilingual quality

Evaluation across 25+ languages and locales.

Numbers you can defend

Calibrated raters, expert judgement

Evaluation is only useful if it is consistent and credible. We calibrate raters against gold standards, bring real domain expertise, and document methodology so results hold up to scrutiny. Pay-on-approval keeps a first evaluation pilot low-risk.

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Graveiens AI vs other LLM evaluation companies

How our LLM evaluation and red-teaming services compare with other providers on focus, expertise and QA.

ProviderCore focusModalitiesQA / accuracy approachEngagement model
Graveiens AIUsHuman and rubric-based LLM evaluation, safety and red-teamingText, dialogue, code, domain promptsDomain-expert graders vs a rubric, ISO 9001:2017Pay-on-approval pilots, managed programs
MacgenceModel evaluation and RLHF dataText, dialogue, promptsManaged crowd with human QAProject-based managed teams
Cogito TechLLM output scoring and annotationText, dialogueHuman-in-the-loop QAManaged teams
ShaipDomain model testing and validationText, audio, domain promptsDomain-expert QAOff-the-shelf datasets plus services
iMeritModel evaluation and data operationsText, dialogue, multimodalExpert-in-the-loop QADedicated managed teams
SamaGenerative AI scoring and alignmentText, image, multimodalSamaAssure QAManaged workforce
Surge AIRLHF and model rating for LLMsText, dialogueExpert human ratersAPI plus managed service
Why Graveiens AI

Why teams choose our LLM evaluation services

Compliance-first delivery and a pay-on-approval model that de-risks every engagement.

Expert graders

STEM and domain SMEs who can judge correctness, not just fluency.

Calibrated raters

Inter-rater agreement tracking keeps scoring consistent and defensible.

Beyond English

Native-speaker evaluation across 25+ languages.

Pay on approval

Invoiced only for approved deliverables.

FAQ

Questions, answered

What do your model evaluation services cover?
Quality and helpfulness, safety and robustness, factuality and reasoning, multilingual quality and custom benchmarking — human-graded against your rubric with calibration and audit-ready reporting.
How is your evaluation different from automated metrics?
Automated metrics miss reasoning errors, subtle safety issues and factual mistakes. Our human evaluators — including domain SMEs — grade against your rubric to catch what benchmarks cannot.
Can you design a custom benchmark?
Yes. We build custom rubrics and benchmark sets to your requirements, with reproducible protocols and regression tracking across model versions.
Do you evaluate in languages other than English?
Yes — native-speaker evaluation across 25+ languages with locale-specific rubrics.
How do we start?
A small paid evaluation batch against your rubric, so you can see reviewer quality before scaling.

Related services

Evaluate your model with experts

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