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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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ChatPDF
✓ verifiedFreemium
Popular tool to chat with PDFs and other documents, giving summaries and cited answers, with a free daily tier and no-signup start.
1.8M visits/mo43K saves
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Convex
✓ verifiedFreemium
TypeScript backend-as-a-service with a reactive database, server functions, auth and file storage for full-stack and AI apps.
692K visits/mo20K saves
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Upsampler
✓ verifiedFreemium
Multi-model AI workspace for generating, upscaling, and editing images and videos using dozens of integrated models.
713K visits/mo
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AI Character Generator
✓ verifiedFreemium
BasedLabs tool that generates complete character profiles and images from prompts for games, comics, art and roleplay.
945K visits/mo
Pricing
No public pricing
No public pricing
Free & Starter: $0/mo (pay-as-you-go, 1-6 developers)
Professional: $25/developer/mo
Business & Enterprise: $2,500/mo minimum
Starter: $0/month (0 monthly credits, 4 cents per extra credit)
Pro: $15/month (1400 monthly credits, 3 cents per extra credit)
Premium: $30/month (3000 monthly credits, 2 cents per extra credit)
Business: $95/month (10000 monthly credits, 1 cent per extra credit)
300 credits: $10 (~80 images)
900 credits: $29 (~240 images)
1,600 credits: $50
3,300 credits: $99
Core features
- ✦Chat with PDFs, Word, PowerPoint and text files
- ✦Summaries with cited sources
- ✦Multi-file chats via folders
- ✦Any-language upload and chat
- ✦Extra tools: AI writer, detector, flashcards, slides
- ✦No-signup quick start
- ✦AI Chatbot powered by ChatGPT, GPT-4o & Gemini
- ✦Available on multiple platforms (Web, iPhone, Apple Watch, macOS, Android)
- ✦Humanlike responses
- ✦Homework assistance
- ✦Proofreading
- ✦AI Writing Assistant
- ✦Reactive real-time database
- ✦TypeScript server functions (queries/mutations/actions)
- ✦Built-in authentication
- ✦Cron jobs and backend workflows
- ✦File storage, text and vector search
- ✦ACID transactions; open-source/self-host
- ✦Access to 43+ image generation models and 19+ video generation models
- ✦Creative upscaling that regenerates images at higher resolution
- ✦Precise upscaling that preserves original content for photos and manga
- ✦Full-resolution image editing with inpainting and outpainting
- ✦Video upscaling up to 4K with stable motion
- ✦Credit-based usage across image and video tools
- ✦API access and commercial use license on all plans
- ✦Prompt-to-character generation with full profile
- ✦Rendered character images
- ✦Genre and role parameters (hero, villain, etc.)
- ✦Interconnected traits, backstory and motivation
- ✦Links to related BasedLabs image/voice tools
- ✦Multiple AI models included
Use cases
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Get help with homework, from essays and compositions to math questions.
- →Proofread written work to create professional-grade documents.
- →Get personalized help with any writing project, from essays to social media posts.
- →Act as a travel agent.
- →Building real-time reactive apps
- →Backends for AI agents
- →Replacing Firebase or Supabase
- →Full-stack TypeScript development
- →Designers enhancing AI-generated or low-resolution images
- →Photographers restoring and upscaling real photos
- →Video creators upscaling footage to crisp 4K
- →Game and architecture studios refining rendered assets
- →Developers integrating image/video AI via API
- →Creating NPCs and game characters
- →Building characters for stories and comics
- →Generating DnD and roleplay characters
- →Producing reference art for artists
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