Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. NerdyTips records 135,548 monthly visits with -3.1% growth and Paid pricing.
Human-validated training data and evaluation services for frontier AI models
AI football predictions with a fully public, graded track record
| Dimension / Metric | | |
|---|---|---|
| Official Domain | appen.com | nerdytips.com |
| Pricing Model | Contact for Pricing | Paid |
| Monthly Visits | 665.84K (665,840) | 135.55K (135,548) |
| MoM Traffic Delta | +1.1K (+0.2%) | -4.33K (-3.1%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇻🇪 Venezuela (26.8%) |
| Direct Visits / mo | 238.31K | 72.13K |
| User Rating | 4.4 | 3.8 |
| 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.
AI football predictions with a fully public, graded track record
An in-house machine-learning model that produces tips for hundreds of leagues, each with a confidence score out of ten.
Every tip is checked against the real final score and shown win or lose, so you can judge recent form yourself.
A handful of predictions are free every day with no account, covering today, tomorrow and yesterday's results.
Tools for combining selections plus browsable coverage of 700+ leagues worldwide.
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
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.
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.
AI picks, prop tracking, and real analytics — free on iOS, Android, and web
AI picks, prop tracking, and real analytics — free on iOS, Android, and web
AI player prop research for every league
AI player prop research for every league
AI sports predictions with the reasoning behind every pick
AI sports predictions with the reasoning behind every pick
