Vapi
Retell AI
Bland AI
Eleven Labs
Voiceflow
Deepgram
Bolna
Smith.ai
Castmint
InVideo.io
Pictory
Fliki
StoryShort.ai
Zebracat AI
DALL-E
HeyGen
Castmint turns one typed line into a finished vertical short: AI script, voiceover, synced captions and visuals โ ready to post on TikTok, YouTube Shorts and Instagram Reels.
The problem: short-form video is the highest-leverage format on the internet, but every single short costs an evening โ scripting, recording a voiceover, syncing captions, hunting for visuals, cutting it vertical. That's why most channels go quiet.
What Castmint does: type a topic โ "5 underrated productivity apps", "why your houseplants keep dying" โ and Castmint assembles the whole thing:
Who it's for: faceless channels, creators who hate editing, and small brands that want to look active on TikTok, Reels and Shorts without a video team.
One input, whole pipeline: most tools automate a single step โ voiceover, or captions, or stock clips. Castmint goes from a typed idea to a finished, publishable short in one pass, and still gives you a timeline editor for control.
Your first three videos are free, no card required.
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Castmint's answer:
Most AI video tools automate a single step โ voiceover, or captions, or stock clips โ and leave you to stitch the rest together yourself. Castmint goes from one typed line to a finished, publishable vertical short in a single pass: script, AI voiceover, synced captions and visuals, all in one automated flow. You still get a full timeline editor when you want to polish it by hand.
Castmint's answer:
Castmint removes the assembly work, not just one piece of it. You type an idea and get a complete short ready to post โ no separate tools for scripting, voice, captions and editing. Your first three videos are free with no card required, so you can judge the output on your own topic before committing to anything.
Castmint's answer:
Faceless-channel creators, solo YouTubers/TikTokers who'd rather not be on camera, and small brands that want to post consistently on TikTok, Reels and Shorts without hiring a video team or an editor.
Castmint's answer:
Castmint started because the founder's own channel kept going quiet โ not from a lack of ideas, but because every short cost an evening of scripting, recording, captioning and cutting. Castmint automates that whole pipeline, so one typed idea becomes a finished, ready-to-post short in minutes instead of hours.
Castmint's answer:
Built on Next.js and TypeScript, with AI generation powered by OpenAI, ElevenLabs and fal.ai.
Based on our record, Vapi seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The Vapi platform helps developers build and deploy voice agents and AI products in Python, React, and TypeScript. It provides two ways to make intelligent voice apps. It's assistant's option allows you to create simple conversational services that may require a single system prompt for the underlying model's operations. - Source: dev.to / 5 months ago
It can make/take phone calls[0], but they need to be prompted on the nature of the call, the data they need, and how to collect it. They can also output the results of the call via API. An AI agent from Masterworks recently called me using this technology. [0] https://vapi.ai/. - Source: Hacker News / 6 months ago
### Resources **VAPI Documentation:** [vapi.ai/docs](https://vapi.ai/docs) โ Voice agent API, webhook integration, real-time call transcription, intent detection endpoints, assistant configuration, function calling. **Twilio Voice API:** [twilio.com/docs/voice](https://twilio.com/docs/voice) โ Phone integration, call handling, webhook callbacks, TwiML response formatting, call status tracking. **GitHub... - Source: dev.to / 7 months ago
## Resources **VAPI**: Get Started with VAPI โ [https://vapi.ai/?aff=misal](https://vapi.ai/?aff=misal) **VAPI Documentation:** Official [VAPI API reference](https://docs.vapi.ai) covers WebSocket voice streaming, real-time transcription configuration, and function calling patterns for conversational AI. **Twilio Voice API:** [Twilio Media Streams](https://www.twilio.com/docs/voice/media-streams) documentation... - Source: dev.to / 7 months ago
Paul Atreides uses the Voice as a tool for control and assertion. Imagine commandeering an AI agent with this voice. We built an AI agent using Composio, Vapi, and OpenAI TTS integrated with Gmail, Slack, and Google Calendar. It can summarise emails, schedule meetings, and search for Slack messages. Your entire morning routine is stress-free. - Source: dev.to / 11 months ago
Retell AI - API that enables developers to build human-like voice agents
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Bland AI - An AI Phone Calling API
Pictory - A month of social videos from long-form content in minutes
Eleven Labs - The most realistic and versatile AI speech software, ever. Eleven brings the most compelling, rich and lifelike voices to creators and publishers seeking the ultimate tools for storytelling.
Fliki - Lifelike Text to Speech & Text to Video converter that helps you create audio and video content using AI voices in less than a minute.