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Perplexity Launches AI-Powered Browser to Take On Google Chrome 🌐
How to optimize prompts with AI
Gina Acosta
July 09, 2025
Welcome to another edition of Horizon AI,
Perplexity continues its efforts to challenge Google, this time with Comet, a new AI-powered web browser.
Let’s jump into it!
Read Time: 4.5 min
Here's what's new today in the Horizon AI
Perplexity Launches AI-Powered Browser Comet
OpenAI Poaches Top Engineers from Tesla, xAI, and Meta
AI Tutorial: How to optimize prompts with AI
AI Tools to check out
AI Findings/Resources
The Latest in AI and Tech 💡
AI News
PERPLEXITY
Perplexity Launches AI-Powered Browser Comet
Perplexity just announced the launch of Comet, a new web browser with AI-powered search capabilities, aiming to reach users directly without going through Google Chrome, the most popular browser today.
Details:
Comet comes with Perplexity’s AI search engine pre-installed and set as the default, offering users quick, AI-generated summaries of search results.
It also features Comet Assistant, a built-in AI agent that aims to automate routine tasks like summarizing emails, managing tabs, and even interacting with webpages. Users can access it by opening a sidecar on any webpage and then simply asking questions about what’s on their screen.
According to the company, Comet stores data locally and avoids using personal information for model training.
It is initially available to Perplexity’s $200/month Max plan subscribers and a select group of invitees, with broader access expected to roll out soon.
Comet is Perplexity’s boldest move yet to take on Google, but it’s entering a very crowded space, with stiff competition from Google Chrome, Apple Safari, and other AI-powered browsers like Dia.
TOGETHER WITH JIRA
Stop scheduling status update “check-ins”
56% of workers say scheduling a meeting is the only way to get information. With Jira, use AI to automatically add work from Slack, create subtasks, or attach relevant resources.
So instead of scheduling a meeting, check the status in Jira. Easy.
OPENAI
OpenAI Poaches Top Engineers from Tesla, xAI, and Meta
According to an internal Slack memo shared by OpenAI co-founder Greg Brockman, the company has hired four top engineers from rivals Tesla, xAI, and Meta, who will soon be joining OpenAI’s scaling team.
Details:
OpenAI brought in David Lau (former VP of software engineering at Tesla), Uday Ruddarraju (ex-head of infrastructure at xAI), Mike Dalton (infrastructure engineer from xAI), and Angela Fan (AI researcher from Meta).
OpenAI’s scaling team manages the backend hardware, software systems, and data centers — including the Stargate project — that enable its researchers to train cutting-edge foundation models.
The announcement comes just weeks after Meta lured at least eight researchers away in late June and it might reignite the already tense relationship between OpenAI and its co-founder, Elon Musk.
The AI talent war continues. As OpenAI and other leading companies make strategic hires, the impact of these moves will become more noticeable in the months ahead.
AI Tutorial
How to optimize prompts with AI
We’ll be using the OpenAI Playground, a useful tool for developers where you can find resources, tutorials, API docs, and dynamic examples.
*Note: You’ll need to set up billing before you can use the Playground.
Go to the OpenAI Playground and sign in with your credentials.
Go to "Prompts" and click "Configure".
Add a clear system message describing what you want the AI to do.
Click "Optimize" to automatically improve your prompt.
Review and tweak the result if needed, then click "Save".
Name your prompt for easy reuse later.
AI Tools to check out
⚡ Slashit: Turn repetitive text into shortcuts, write 10x faster.
🤝 Pally: AI Relationship Management. It helps you keep track, search across, and build relationships with the people that matter most.
💬 EasySite: Build working apps & websites just by chatting with AI.
📖 Bookster: Create and publish captivating eBooks in minutes.
🔍 Sider: Human-like research with smart highlights & notes, visualized reports.
AI Findings/Resources
👀 ChatGPT solved a 10+ year problem no doctors could figure out
🗣 AI isn’t just impacting how we write — it’s changing how we speak and interact with others
🔮 AI is changing the world faster than most realize
The latest in AI and Tech
As reported yesterday, Grok went off the rails after being given explicit instructions to be less “politically correct” in its responses — going from blaming Musk for flood-related deaths in Texas to praising Adolf Hitler and writing bizarre rape fantasies.
The “inappropriate posts” have been taken down, and the chatbot’s ability to respond with text has also been disabled. It can now only reply with images.
The incident also led a Turkish court to order a ban on Elon Musk’s AI chatbot across Turkey, due to offensive content about the nation’s president and other prominent figures.
The U.S. State Department says it is investigating an imposter who used AI to impersonate Secretary of State Marco Rubio, contacting at least five individuals, including three foreign ministers, a U.S. governor, and a member of Congress.
The "unknown actor" is alleged to have sent fake voice messages, using an AI-generated version of Rubio’s voice, and texts to officials via the Signal messaging app.
Google CEO Sundar Pichai announced that users in India can now access AI Mode in Search, a chatbot-style feature that delivers AI-generated answers based on web sources. The feature is currently available only in English.
Bitchat is a new decentralized, peer-to-peer messaging app that works entirely over Bluetooth mesh networks, with no internet, central servers, phone numbers or emails required.
The Twitter co-founder, now Block CEO, announced Sunday that the beta version is live on TestFlight, with a full white paper available on GitHub.
Scientists have used AI to develop paint formulas that keep buildings 5–20°C (9–36°F) cooler than normal paint after exposure to midday sun. The coatings reflect sunlight and release heat, reducing the need for air conditioning and potentially cutting energy use significantly in hot cities worldwide.
That’s a wrap!
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Gina 👩🏻💻