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PromptLayer
✓ verifiedFree
Prompt engineering, management, and LLM observability platform.
212K visits/mo
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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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Flalingo
✓ verifiedPaid
Online English school matching learners with native tutors, backed by an AI coach and a smart tutor-matching algorithm.
432K visits/mo
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Dia Browser
✓ verifiedFreemium
AI web browser for macOS that reads your tabs and connected apps to brief you, synthesize info and answer questions across your work.
630K visits/mo845 saves
Pricing
No public pricing
No public pricing
No public pricing
No public pricing
No public pricing
Core features
- ✦Prompt management
- ✦Prompt evaluations
- ✦LLM observability
- ✦Team collaboration
- ✦Version control for prompts
- ✦A/B testing of prompts
- ✦Prompt Registry
- ✦Historical backtests
- ✦Regression tests
- ✦Usage monitoring
- ✦Lifelike voice AI agents
- ✦24/7 availability
- ✦Customer-led conversational platform
- ✦Integration with enterprise systems
- ✦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
- ✦Live lessons with native tutors
- ✦Smart tutor-matching algorithm
- ✦AI coach (FLAI) for progress tracking
- ✦24/7 live support
- ✦Oxford University Press materials
- ✦Accredited digital certificate after 30 hours
- ✦AI that reasons across open tabs and connected apps
- ✦Morning Brief of calendar, inbox and links
- ✦Synthesis into reports and decks
- ✦Split view and organised tab groups
- ✦Work and personal profiles
- ✦Privacy controls with end-to-end encrypted Sync
Use cases
- →Scaling customer support automation with LLMs
- →Empowering non-technical teams with prompt engineering
- →Building personalized AI interactions
- →Debugging LLM agents
- →Improving content creation processes
- →Managing and monitoring prompts with a team
- →Answering customer service calls
- →Providing information and support
- →Resolving customer issues
- →Automating call center operations
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Learning English one-on-one with a tutor
- →Exam or business English preparation
- →Kids' and corporate English training
- →Summarising and synthesising work context
- →Starting the day with an agenda brief
- →Answering questions across tools and tabs
- →Separating work and personal browsing
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