Custom.MT records 4,535 monthly visits with -48.8% month-over-month growth and Contact for Pricing pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Machine translation and GenAI localization for enterprise language teams
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | custom.mt | prolific.com |
| Pricing Model | Contact for Pricing | Paid |
| Monthly Visits | 4.54K (4,535) | 18.7M (18,697,671) |
| MoM Traffic Delta | -4.32K (-48.8%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (66.1%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 1.78K | 12.98M |
| User Rating | 4 | 4.6 |
| Supported Platforms | Website | Website |
Machine translation and GenAI localization for enterprise language teams
Manage stock engines and your own custom models from one console, then push them into the linguistic tools your team already works in.
Compare DeepL, Google, GPT-class and custom models with BLEU, WER and COMET scores plus sample segments to find the best engine per language pair.
Fine-tune translation models on your terminology, style guides and past translations to cut edit distance and post-editing cost.
Plugins and extensions for Trados, Smartling, memoQ, XTM Cloud, Smartcat and Shopware keep MT inside existing localization workflows.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
Free / Open-sourceEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Free / Open-sourceEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Free / Open-sourceProfessional AI translation for text, documents, images and audio
Free / Open-sourceProfessional AI translation for text, documents, images and audio
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
On-premise translation and speech recognition for enterprises
On-premise translation and speech recognition for enterprises
Free / Open-sourceAI-powered localization and translation platform for global content
Free / Open-sourceAI-powered localization and translation platform for global content
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
Free / Open-sourceFree AI translator that cross-checks 22 models for one trusted translation
Free / Open-sourceFree AI translator that cross-checks 22 models for one trusted translation
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
Free / Open-sourceSecure, high-accuracy AI machine translation for global organisations
Free / Open-sourceSecure, high-accuracy AI machine translation for global organisations
