Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. BasedTools records 17,641 monthly visits with +73.7% growth and Free pricing.
Human-validated training data and evaluation services for frontier AI models
A curated directory and search engine for discovering AI tools and products
| Dimension / Metric | | |
|---|---|---|
| Official Domain | appen.com | basedtools.ai |
| Pricing Model | Contact for Pricing | Free |
| Monthly Visits | 665.84K (665,840) | 17.64K (17,641) |
| MoM Traffic Delta | +1.1K (+0.2%) | +7.49K (+73.7%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇺🇸 United States (37.5%) |
| Direct Visits / mo | 238.31K | 6.9K |
| 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.
A curated directory and search engine for discovering AI tools and products
Thousands of AI products grouped into practical categories such as chatbots, education assistants, legal tools, video generation and design utilities so you can start from a use case.
A dedicated "Launching Today" area rotates freshly added and newly released AI tools, making the directory useful for spotting new products early.
Intent-based search helps you jump straight to a tool instead of paging through category lists.
Founders can submit their own AI tool for consideration, which keeps the catalog growing with indie launches as well as established names.
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.
A curated AI tools directory with 5,000+ listings
A curated AI tools directory with 5,000+ listings
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.
A hand-curated directory for discovering AI tools and resources
A hand-curated directory for discovering AI tools and resources
Discover AI tools and learn AI fundamentals in one searchable hub
Discover AI tools and learn AI fundamentals in one searchable hub
