Does anyone know the specific differences and features among the three, Or if one has more features/more flexible to use as a developer?
vs Dialogflow vs luis.ai╔══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
║ wit.ai vs api.ai(Dialogflow) vs luis.ai ║
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║ S.No ║ Wit.ai ║ Api.ai(Dialogflow) ║ Luis.ai ║
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║ 1 ║ Wit.ai API is completely free ║ Api.ai Has a paid enterprise option ║ LUIS is in beta and free to use ║
║ ║ with no limitations on ║ which allows for this to be run on a ║ 10K transactions per month ║
║ ║ request rates. ║ private cloud internally and more ║ and up to 5 requests per second ║
║ ║ ║ from their services team., After google ║ for each account. ║
║ ║ ║ acquisition they are providing free ║ ║
║ ║ ║ services by integrating google cloud ║ ║
║ ║ ║ services. ║ ║
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║ 2 ║ Provides a nice combination ║ Speech to Text and Text to Speech ║ LUIS uses machine learning ║
║ ║ of both voice recognition and ║ capabilities, along with machine ║ based methods to analyze ║
║ ║ machine learning for developers. ║ learning. ║ sentences. To perform machine ║
║ ║ ║ ║ learning, LUIS breaks an ║
║ ║ ║ ║ utterance into "tokens". ║
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║ 3 ║ Has two main elements to it ║ Support of Intents, Entities, actions ║ Supports Intents, Entities ║
║ ║ that you set up within your ║ and one key focus area is its “Domains”. ║ and actions. ║
║ ║ app – intents and entities. ║ ║ ║
║ ║ Actions are separated to ║ ║ ║
║ ║ use as a combined operations. ║ ║ ║
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║ 4 ║ Has pre-build entities like ║ Has pre-build entities like @sys.date, ║ Has pre-build entities ║
║ ║ temperature, number, URLs, ║ @sys.color, @sys.unit-currency… etc. ║ builtin.intent.alarm, ║
║ ║ emails, duration… etc. ║ ║ builtin.intent.calendar, ║
║ ║ ║ ║ builtin.intent.email… etc. ║
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║ 5 ║ Doesn’t have integration module ║ Has integration module to connect ║ Has integration to Microsoft ║
║ ║ to directly communicating with ║ directly to Facebook messenger and ║ Azure and other services, can be ║
║ ║ Facebook messenger or other ║ other messenger api’s. Has support for ║ deployable in any supported ║
║ ║ messenger APIs. but has web ║ deploying in to heroku server, enterprise ║ servers. ║
║ ║ service api to hook services. ║ paid environment. ║ ║
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║ 6 ║ Early in 2015, joined Facebook ║ Created by a team who built personal ║ LUIS was introduced together with ║
║ ║ and opened up the entire platform ║ assistant app for major mobile platforms ║ Microsoft Bot Framework and Skype ║
║ ║ to be free for both public and ║ with speech and text enabled conversations. ║ Developer Platform which can be ║
║ ║ private instances. ║ acquired by google (sept 2016). ║ used to create Skype Bots. ║
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║ 7 ║ Wit.ai API for developers of iOS, ║ Api.ai has SDKs for Android, iOS, ║ LUIS allow building applications ║
║ ║ Android, Node.js, Raspberry Pi, ║ the Apple Watch, Node.js, Cordova, ║ by using the LUIS web interface. ║
║ ║ Ruby, Python, C, Rust and ║ Unity, C#, Xamarin, Windows Phone, ║ No coding needed other than the ║
║ ║ Windows Phone. It even ║ Python and JavaScript. It also can be ║ ability to interpret and use the ║
║ ║ has a JavaScript plugin for ║ integrated with Amazon’s Echo and ║ returned JSON in application. ║
║ ║ front end developers. ║ Microsoft’s Cortana. ║ It is also possible to use the ║
║ ║ ║ ║ LUIS REST API for ║
║ ║ ║ ║ automation of applications. ║
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Update: API.AI is now Dialogflow. Learn more here.