Duolingo’s new GPT-4 AI will happily explain why your Spanish is wrong

Duolingo is launching a new virtual tutor that aims to replicate real-world scenarios to help students learn better. And it’s all powered by the recently released GPT-4 AI model.

Making its home in the new Duolingo Max subscription tier, the tutor consists of two features: Explain My Answer and Roleplay. The former, as its name suggests, gives users the opportunity to, if they’re confused by something in DuoLingo's initial response, ask the chatbot Duo to give a detailed explanation of why their answer was right or wrong. In an example video, the AI explains why select Spanish verbs must be conjugated a certain way given the context of the sentence. 

Duo, however, is not universally available on all language exercises, just certain ones. On those few, a Explain My Answer button will appear at the bottom of the screen after you attempt an exercise.

Roleplay, on the other hand, allows users to engage in a realistic conversation with the AI so they can practice their language skills. According to the post, no two chats will be exactly the same. In one instance, you could be talking to “waiter” as you order coffee at a French café or discussing vacation plans in Spanish with a “friend.” And at the end of every Roleplay, Duo will give you some feedback based “on the accuracy and complexity of [your] responses, as well as tips for future conversations.” 

Limited release

Do be aware that the GPT-4 AI behind Duo is not perfect. For the new release, research laboratory OpenAI took the time to improve GPT-3’s chat abilities so it can produce more natural-sounding text, similar to how people normally speak – at least in English. GPT-4 can create language guides such as utilizing English mnemonics for Spanish words. However, as seen on Twitter, those mnemonic guides can be pretty hilarious and not always in a good way. Duolingo admits its virtual tutor will make some mistakes. As such, the company is asking users to give the AI some feedback which you can do by selecting either the “thumbs-up” or “thumbs-down” emoji at the end of every Explain My Answer session.

Currently, Duolingo Max is seeing a limited roll-out. The AI will only be available in either Spanish or French for English speakers on iOS, but there are plans to “expand to more courses, language interfaces, and platforms in the coming months”, according to a company representative.

To subscribe to the tier, you have two methods. You can either pay $ 29.99 for Duolingo Max or $ 167.99 for the whole year. Breaking everything down, the yearly cost comes down to $ 13.99 a month. Additionally, you also get every feature under Super Duolingo which includes “unlimited hearts [for lessons], no ads, and [a] personalized review through the Practice Hub.”

While we have you, be sure to check out TechRadar’s list of the best AI writers for 2023 if you need content done fast. 

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Meta Builder Bot concept happily builds virtual worlds based on voice description

The Metaverse, that immersive virtual world where Meta (née Facebook) imagines we'll work, play, and interact with friends and family is also where we may someday build entire worlds with nothing but our voice.

During an online AI development update delivered, in part, by Meta/Facebook Founder and CEO Mark Zuckerberg on Wednesday (February 23), the company offered a glimpse of Builder Bot, an AI concept that allows the user to build entire virtual experiences using their voice.

Standing in what looked like a stripped-down version of Facebook's Horizon Worlds' Metaverse, Zuckerberg's and a co-worker's avatars asked a virtual bot to add an island, some furniture, clouds, a catamaran, and even a boombox that could pay real music to the environment. In the demonstration, the command phrasing was natural and the 3D virtual imagery appeared instantly, though it did look a bit like the graphics you'd find in Nintendo's Animal Crossing: New Horizons.

The development of Builder Bot is part of a larger AI initiative called Project CAIRaeoke, which is an end-to-end neural model for building on-device assistance. 

Meta's Builder Bot concept

Mark Zuckerberg’s legless avatar and Builder Bot. (Image credit: Future)

Zuckerberg explained that current technology is not yet equipped to help us explore an immersive version of the internet that will ultimately live in the Metaverse. While that will require updates across a whole range of hardware and software, Meta believes AI is the key to unlocking advancement that will lead to, as Zukerberg put it, “a new generation of assistants that will help us explore new worlds”.

“When we’re wearing [smart] Glasses, it will be the first time an AI system will be able to see the world from our perspective,” he added. A key goal here is for the AI they're developing to see as we do and, more importantly, learn about the world as we do, as well.

It's unclear if Builder Bot will ever become a true part of the burgeoning Metaverse, but its skill with real-time language processing and understanding how parts of the environment should go together is clearly informed by the work Meta is doing.

Mark Zuckerberg talks AI translation

Mark Zuckerberg talks AI translation (Image credit: Future)

Zuckerberg outlined a handful of other related AI projects, all of which will eventually feed into a Metaverse that can be accessed and used by anyone in the world.

These include “No Language Left Behind,” which, unlike traditional translation that often uses English as a mid-translation point, can translate languages directly from the source to the translation language. There's also the very Star Trek-like “Universal Speech Translator”, which would provide instantaneous speech-to-speech translation across all languages, including spoken languages.

“AI is going to deliver that in our lifetimes,” said Zuckerberg.

Mark Zuckerberg talks image abstraction

Mark Zuckerberg talks image abstraction (Image credit: Future)

Meta is also investing heavily in self-supervised learning (SSL) to build human-like cognition into AI systems. Instead of training with tons of images to help the AI identify patterns, the system is fed raw data and then asked to predict the missing parts. Eventually, the AI learns how to build abstract representations.

An AI that can understand abstraction could complete an image just from a few pieces of visual information, or generate the next frame of a video it's never seen. It could also build a visually pleasing virtual world with only your words to guide it.

For those full-on freaked out by Meta's Metaverse ambitions, Zuckerberg said that the company is building the Metaverse for everyone and they are “committed to build openly and responsibly” while protecting privacy and preventing harm.

It's unlikely anyone will take his word for it, but we look forward to watching the Metaverse's development.

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