
Provides a richer all-in-one workspace with writing and painting tools, but is less focused on customizable scraping macros.
Provides a richer all-in-one workspace with writing and painting tools, but is less focused on customizable scraping macros.
HARPA AI records 537,461 monthly visits with +99.3% month-over-month growth and Freemium pricing. Scale records 616,915 monthly visits with +12.5% growth and Contact for Pricing pricing.
One browser agent that combines every major AI model with web automation
| Dimension / Metric | ||
|---|---|---|
| Official Domain | harpa.ai | scale.com |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 537.46K (537,461) | 616.92K (616,915) |
| MoM Traffic Delta | +267.81K (+99.3%) | +68.69K (+12.5%) |
| Primary Market & Share | 🇺🇸 United States (17%) | 🇺🇸 United States (44.2%) |
| Direct Visits / mo | 410.05K | 191.41K |
| User Rating | 4.6 | 4.7 |
| Supported Platforms | Website | Website |
One browser agent that combines every major AI model with web automation
Switch between GPT, Claude, Gemini, Perplexity, DeepSeek and other models from one extension on any page, without juggling separate tabs or subscriptions.
Summarise long articles, PDFs and YouTube videos, ask follow-up questions about the content, or jump to the relevant timestamp in a video.
Track page changes, price drops and back-in-stock alerts across e-commerce sites, with notifications when something moves.
Extract structured data from websites, fill forms, click through flows and trigger Zapier, Make.com, IFTTT or n8n chains.
The data, evaluations and systems behind AI that has to be right.
Human-sourced and expert-annotated training data, including specialist contributors with advanced degrees, at the quality bar frontier labs require.
Public leaderboards plus private benchmarks that test model capability and safety for the most ambitious AI developers.
Platform and services teams that pick the right use case, build the system and take ownership of the outcome.
Agentic systems designed around measurable business outcomes across private equity portfolios, energy and healthcare operations.

Provides a richer all-in-one workspace with writing and painting tools, but is less focused on customizable scraping macros.
Provides a richer all-in-one workspace with writing and painting tools, but is less focused on customizable scraping macros.
Offers a cleaner multi-model browser sidebar experience, but lacks HARPA's advanced no-code web automation macros.
Offers a cleaner multi-model browser sidebar experience, but lacks HARPA's advanced no-code web automation macros.
SpecialistStreamlines computer vision dataset annotation and model training, but is less suited for general LLM text tasks.
SpecialistStreamlines computer vision dataset annotation and model training, but is less suited for general LLM text tasks.
Stronger multi-model model selection and email integration, but offers less granular browser task automation workflows.
Stronger multi-model model selection and email integration, but offers less granular browser task automation workflows.
SpecialistGreat for social highlighting and YouTube knowledge capture, but offers less automated web workflow scripting than HARPA.
SpecialistGreat for social highlighting and YouTube knowledge capture, but offers less automated web workflow scripting than HARPA.

Focuses heavily on enterprise data labeling and training data curation, similar to Scale's core annotation business.
Focuses heavily on enterprise data labeling and training data curation, similar to Scale's core annotation business.

SpecialistThe agentic AI browser that reads your tabs, files, and screenshots as context
SpecialistThe agentic AI browser that reads your tabs, files, and screenshots as context
SpecialistExcels at natural-language web scraping and structured data extraction, but lacks general-purpose conversational LLM sidebars.
SpecialistExcels at natural-language web scraping and structured data extraction, but lacks general-purpose conversational LLM sidebars.

Provides enterprise multimodal annotation and data management tools, but with less emphasis on managed labeling workforces.
Provides enterprise multimodal annotation and data management tools, but with less emphasis on managed labeling workforces.

SpecialistTrack, evaluate, and ship AI models and agents in one connected environment.
SpecialistTrack, evaluate, and ship AI models and agents in one connected environment.

SpecialistFocuses on post-deployment LLM observability and evaluation rather than training data generation or annotation.
SpecialistFocuses on post-deployment LLM observability and evaluation rather than training data generation or annotation.
Specializes in data infrastructure and annotation specifically tailored for computer vision and physical AI workloads.
Specializes in data infrastructure and annotation specifically tailored for computer vision and physical AI workloads.