Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. Veryfi records 104,470 monthly visits with -11.5% growth and Paid, Contact for Pricing, Free pricing.
Human-validated training data and evaluation services for frontier AI models
OCR and multi-modal document extraction APIs with built-in fraud detection
| Dimension / Metric | | |
|---|---|---|
| Official Domain | appen.com | veryfi.com |
| Pricing Model | Contact for Pricing | Paid, Contact for Pricing, Free |
| Monthly Visits | 665.84K (665,840) | 104.47K (104,470) |
| MoM Traffic Delta | +1.1K (+0.2%) | -13.53K (-11.5%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇺🇸 United States (21.8%) |
| Direct Visits / mo | 238.31K | 37.78K |
| User Rating | 4.4 | 4.4 |
| Supported Platforms | Website | Website |
Human-validated training data and evaluation services for frontier AI models
Chain-of-thought reasoning traces, SME-level RLHF, supervised fine-tuning demonstrations and adversarial red teaming for the most capable models.
Golden trajectories, RL environment design, failure-mode taxonomies and software-engineering-driven deep evaluation for autonomous agents.
Multilingual ASR and conversational speech data, expressive TTS annotation, vision-language model training data, video action labelling and voice-agent evaluation.
LiDAR point-cloud labeling, multi-camera sensor fusion, robot demonstration trajectories, world-model rollouts and embodied interaction logs.
OCR and multi-modal document extraction APIs with built-in fraud detection
Multi-modal OCR APIs extract structured fields from invoices, receipts, bank statements, checks, W-2s, insurance cards and 100+ other document types with day-one accuracy.
Every document receives a fraud verdict with a color, a score and reasons returned under meta.fraud, covering AI-generated fakes, edited pixels, math mismatches, duplicate submissions and edited PDF layers and metadata.
Mobile (iOS and Android) and browser camera frameworks plus wrapper support and secure credit-card capture deliver clean, correctly cropped images before any API call.
Document classification and routing, PDF splitting, product/SKU-level intelligence and document-to-Markdown conversion are available as add-ons alongside the core OCR pipeline.
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.
Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.
Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.
Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.
Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.
Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.
Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistThe multimodal data layer for computer vision and physical AI teams
SpecialistThe multimodal data layer for computer vision and physical AI teams
SpecialistAI agents that run document-heavy business processes end to end
Offers pre-packaged AI training datasets and custom data collection services, but with a smaller global crowd than Appen.
Offers pre-packaged AI training datasets and custom data collection services, but with a smaller global crowd than Appen.
SpecialistEnterprise LLMs and document AI that turn unstructured work into data
SpecialistEnterprise LLMs and document AI that turn unstructured work into data
Free / Open-sourceProvides a flexible open-source annotation platform for self-hosting, but lacks Appen's managed enterprise human workforce services.
Free / Open-sourceProvides a flexible open-source annotation platform for self-hosting, but lacks Appen's managed enterprise human workforce services.
SpecialistAgentic document platform that turns messy PDFs into LLM-ready structured data
SpecialistAgentic document platform that turns messy PDFs into LLM-ready structured data
