
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

CapSolver records 73,385 monthly visits with -30.9% month-over-month growth and Free Trial, Paid pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
AI CAPTCHA recognition API for reCAPTCHA, Cloudflare and more
| Dimension / Metric | ||
|---|---|---|
| Official Domain | dashboard.capsolver.com | sider.ai |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 73.39K (73,385) | 2.64M (2,644,740) |
| MoM Traffic Delta |
| -32.82K (-30.9%) |
| -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (29.6%) | 🇺🇸 United States (13.3%) |
|---|
| Direct Visits / mo | 55.2K | 1.7M |
|---|
| User Rating | 4.2 | 4.5 |
|---|
| Supported Platforms | Website | Website |
|---|
AI CAPTCHA recognition API for reCAPTCHA, Cloudflare and more
Handles popular challenge types including reCAPTCHA, hCaptcha, Cloudflare Turnstile, and image or OCR-based recognition.
A straightforward HTTP API lets developers submit challenges and receive solution tokens programmatically.
Extensions and browser-automation hooks make it easier to solve challenges inside real browsing sessions.
Image recognition plus OCR models are applied to text and picture CAPTCHAs as well as interactive puzzles.
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Free / Open-sourceBuild, train, and deploy computer vision for the physical world
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.

AI-powered CAPTCHA solving API built for scale
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

Multi-modal AI detection API that flags synthetic images, text, audio, video and deepfakes

Search foundation built from embeddings, rerankers, and reader APIs

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser

Cloud browsers for AI agents, scraping, and automation that won't get blocked

SpecialistProxies and web data APIs for scraping and AI pipelines
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Free / Open-sourceBuild, train, and deploy computer vision for the physical world
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
AI-powered CAPTCHA solving API built for scale
Multi-modal AI detection API that flags synthetic images, text, audio, video and deepfakes
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Cloud browsers for AI agents, scraping, and automation that won't get blocked
SpecialistProxies and web data APIs for scraping and AI pipelines