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Free multilingual online text-to-speech generator with a paid Pro tier for higher character limits and more voices.
Well-known chat-with-PDF tool for summarizing and extracting; strong traffic.
Fast, developer-friendly open-source search engine and AI retrieval platform offering full-text, semantic, and hybrid search.
Crypto exchange with built-in trading bots; established, high traffic.
AI coding platform and IDE that orchestrates multiple agent sessions and lets teams plug in their own AI subscriptions.
Free trial available
No public pricing
No public pricing
- ✦600+ AI voices across 100+ languages
- ✦Free weekly character quota with unlimited use on some voices
- ✦Pause insertion and speech pacing controls
- ✦Multi-voice dialogue editor (Pro)
- ✦MP3 download and audio history
- ✦Commercial usage rights for generated audio
- ✦API access on paid tiers
- ✦Chat with PDF documents
- ✦Summarize PDF content
- ✦Extract information from PDFs
- ✦Source citation for answers
- ✦OCR support
- ✦AI Agents for document analysis
- ✦Capture & Ask feature
- ✦Chatbot widget (add-on)
- ✦Sub-50ms search-as-you-type
- ✦Full-text, semantic, and hybrid search
- ✦Vector storage for RAG and similarity queries
- ✦Multimodal and federated search
- ✦Filtering, faceting, sorting, and geosearch
- ✦Managed cloud or self-hosted open source
- ✦In-built crypto trading bots
- ✦Spot and futures trading
- ✦Structured earning products
- ✦Mobile app support
- ✦AI coding IDE with agent orchestration
- ✦Run and manage multiple agent sessions
- ✦Task, artifact and collaboration tools
- ✦Bring-your-own AI subscription or API keys
- ✦Cloud-scale agent execution
- →Creating narration or voiceovers for videos
- →Making audiobooks or reading e-books aloud
- →Generating accessible audio versions of articles
- →Producing multi-speaker dialogue audio for content creators
- →Analyzing legal documents
- →Summarizing financial reports
- →Extracting key information from books
- →Reviewing scientific papers
- →Understanding user manuals
- →Creating employee training materials
- →Adding fast site or app search
- →Building AI/RAG retrieval pipelines
- →E-commerce and media search experiences
- →Semantic search over private data
- →Automated trading of Bitcoin and Ethereum
- →Earning passive income through structured products
- →Arbitrage trading between different exchanges
- →Shipping code faster with AI agents
- →Coordinating agent work across a team
- →Managing tasks and artifacts in one place
- →Running many parallel agent sessions