
SpecialistThe AI workspace where teams and agents get work done together
Glasp records 889,564 monthly visits with -14.1% month-over-month growth and Freemium pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Highlight the web, learn in public, and build your AI clone
| Dimension / Metric | ||
|---|---|---|
| Official Domain | glasp.co | prolific.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 889.56K (889,564) | 18.7M (18,697,671) |
| MoM Traffic Delta | -146.38K (-14.1%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (15.5%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 400.6K | 12.98M |
| User Rating | 4.2 | 4.6 |
| Supported Platforms | Website | Website |
Highlight the web, learn in public, and build your AI clone
Mark up passages on any website or lines in a YouTube transcript from a browser extension, then keep them in one searchable library.
Highlights are shared publicly by default, so you can follow other users, react to their picks and discover sources through people with similar interests.
Generate summaries of long articles, PDFs and YouTube videos to judge relevance fast and to digest what you have already saved.
Trained on your accumulated highlights and notes, the AI clone answers in the shape of your reading history and areas of interest.
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.

SpecialistThe AI workspace where teams and agents get work done together
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

SpecialistExcels at deep scientific literature reading and analysis, whereas Glasp targets general web and video content curation.
SpecialistExcels at deep scientific literature reading and analysis, whereas Glasp targets general web and video content curation.

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.
Offers a broader multi-model sidebar for quick page summarization, but lacks Glasp's community-driven public highlighting and curation.
Offers a broader multi-model sidebar for quick page summarization, but lacks Glasp's community-driven public highlighting and curation.

Provides faster multi-tab AI assistance and article summaries, but lacks dedicated social knowledge curation and note archiving features.
Provides faster multi-tab AI assistance and article summaries, but lacks dedicated social knowledge curation and note archiving features.

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.
Delivers powerful web automation and page summarization, but features a steeper learning curve than Glasp's streamlined extension.

SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models

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.