"Life Search Engine" lands on iPhone, Black Mirror becomes reality

The smart mobile assistant connected to the big model is here!

The APP is called Rewind, and it is powered by GPT-4. It can record, search, and answer all content browsed with Safari with one click.

Open it to see a big "backup", all the content you have browsed is here:

You can also search by “keyword” to directly locate pages with this word:

You can also ask a question without searching and let it summarize:

Seeing this, netizens are not calm:

I’m sure I’ve seen it in Black Mirror.

In the episode "The Entire History of You" of "Black Mirror", the implanted chip can read past memories at any time, but now you only need to install an APP on your mobile phone.

As soon as Rewind was released, Sam Altman rushed to repost and comment, saying that this was the way his own GPT-4 appeared:

Thai pants!

Fifty free experiences!

Currently, Rewind macOS and iOS versions are available, and can be installed and used on iPhone and Mac (M1 and M2 chips)!

The official website shows that Rewind has fifty free trials, and there are two other payment options: Basic Edition and Professional Edition.

The basic version costs $12 per month, but can only be used 10 times, while the professional version costs $36 per month and has unlimited uses.

The number of uses is calculated as follows: opening Rewind and browsing previous content or word search is counted as one time; asking a question to Ask Rewind is counted as one time for each question asked.

In order to get a glimpse of Rewind's true appearance, we tried it out ourselves.

Once you have installed Rewind for iOS, it will automatically record the contents of Safari in the background.

As the Chinese translation of Rewind is “rewind”, after clicking it, you can see a “timeline” that can be slid left and right. Sliding the timeline, the content that the user has browsed before will be presented in the form of scrolling screenshots:

Rewind will also automatically index each word. Using the "word or sentence" search, Rewind will be able to call up all the pages where this word or sentence appears.

The Ask Rewind function connected to GPT-4 can not only accurately answer questions, but also attach links to the source of the answers. As long as you have browsed the web pages, you can directly ask any questions you have:

In addition to capturing content in Safari, Rewind can also capture screenshots. So, if you encounter important content, you can take a screenshot and let Rewind perform optical character recognition on the text. You can also take a screenshot in Ask Rewind.

Rewind can also be used for more purposes. For example, it can automatically record meetings and give meeting summaries:

As a backup, don't worry about forgetting to save or the browser crashing:

Official website: Privacy first

Seeing this, everyone will inevitably have doubts: How to solve the privacy problem?

The official statement is:

Rewind is a privacy-first app.

The recorded content and search processing will be performed locally and only you have access rights.

When using the Ask Rewind feature, only text data related to the question will be sent to the cloud, not including personal sensitive information such as credit card numbers and social security numbers.

Rewind AI founder and CEO Dan Siroker also emphasized on Twitter:

Use of GPT-4 is optional, and will only use relevant text necessary to answer the question.

The data will not be used to train AI models.

Of course, this is just the privacy protection that Rewind has stated to the public. Some netizens said:

If information must be sent to a third party to process, that is far from what most privacy-conscious people consider private.

If you are worried, you can pause the recording at any time during use.

Having said that, how much memory would it take to store so many memories?

You know what, there really aren’t many.

According to the official website, Rewind can compress the original audio data up to 3750 times without any significant loss in quality.

To give a more intuitive example, 10.5GB of original recorded data is directly converted into 2.8MB after compression.

Secondly, power consumption is also a problem. Some netizens are worried that Rewind will cause their mobile phones to run out of battery quickly.

Rewind co-founder and CEO Dan Siroker shared his usage experience:

In 24 hours, only 4% of the phone’s battery was consumed.

The macOS version was launched half a year ago

In fact, Rewind AI, the company behind Rewind, launched the Rewind macOS version half a year ago. When it was first launched, Rewind received a lot of praise even before the Ask Rewind feature. Many people called it the "second brain" and hoped that it could be connected to the AI ​​function.

After much anticipation, Ask Rewind is now available, and the iOS version is also available.

Dan Siroker said:

I use my phone too much, picking it up 107 times a day on average, but it’s hard to remember everything I’ve seen, so I launched the iPhone version.

He also shared why he founded Rewind:

I lost my hearing in my 20s, and when I first got hearing aids, it was amazing. Losing a sense and getting it back is like gaining a superpower.

Our vision is to use technology to give humans superpowers.

In addition, Brett Bejcek, who has worked as a data scientist at Spotify and Glowforge, is also a co-founder.

Currently, the team has received a total of over US$33 million in financing from Sam Altman, First Round Capital, Andreessen Horowitz and NEA.

One more thing

Since the iOS version can only record content browsed using the Safari browser, some netizens asked

What if it's Chrome?

Rewind AI directly threw out the link:

It's simple, just download Safari.

That being said, there is no lack of action. Brett Bejcek is also actively collecting user feedback:

What do you think of the Rewind app? Would you use it?

Reference Links:
[1] https://www.rewind.ai/.
[2]https://twitter.com/sama/status/1684330445083901952.