Elon Musk Launches Grok 4 šŸš€!

Also: Perplexity takes on Chrome with its new AI-driven browser, Comet, while OpenAI’s open model is on the horizon 🌌.

Source: ChatGPT Image Generator

We’ve seen Grok’s ā€œantisemitic meltdownā€ all over socials this week, but what we definitely didn’t expect was a product launch in the midst of all this. All publicity is good publicity? The folks at xAI probably think so šŸ˜…. 

Forward thinkers, today, we bring you issue #115 of the Neural Frontier. 

We’re diving into Grok 4’s launch, as well as groundbreaking updates from tech giants Perplexity and OpenAI. You’re gonna love this one šŸ˜.

In a rush? Here's your quick byte: 

šŸš€ Elon Musk launches Grok 4! 

ā˜„ļø Perplexity takes on Chrome with its new AI-driven browser, Comet.

šŸ¤– OpenAI’s open model is on the horizon!

šŸŽ­ AI Reimagines: Iconic logos as Da Vinci sketches! 

šŸŽÆ Everything else you missed this week.  

⚔ The Neural Frontier’s weekly spotlight: 3 AI tools making the rounds this week.

Source: xAI

Elon Musk's AI venture, xAI, has officially unveiled Grok 4, its newest flagship AI model, alongside a high-priced subscription tier called SuperGrok Heavy at $300 per month.

Here’s what you need to know:

šŸŽÆ What’s New with Grok 4? Grok 4 is xAI’s ambitious challenger to models like OpenAI’s ChatGPT and Google’s Gemini, featuring advanced capabilities including:

  • Image analysis and interpretation

  • High-level problem-solving through multi-agent collaboration

  • Superior academic performance, reportedly better than PhD-level knowledge in all subjects

Elon Musk, appearing in his trademark style during the livestream launch, boldly stated:

ā€œWith respect to academic questions, Grok 4 is better than PhD level in every subject, no exceptions… It might lack common sense at times, but it’s just a matter of time before it discovers new physics.ā€

🧠 Grok 4 Heavy: Multi-Agent Enhanced Version: Grok 4 launched in two variants:

  • Grok 4: A standard but powerful conversational AI model.

  • Grok 4 Heavy: A multi-agent model that uses multiple AI agents simultaneously to solve problems collaboratively, significantly boosting performance.

Notable benchmark results for Grok 4:

Test

Grok 4

Grok 4 Heavy

Competitors

Humanity’s Last Exam

25.4% (no tools)

44.4% (with tools)

Gemini 2.5 Pro: 26.9%, OpenAI’s o3: 21%

ARC-AGI-2 (Visual pattern recognition)

16.2%

–

Claude Opus 4: ~8%

šŸ’° SuperGrok Heavy: The new $300/month subscription tier, SuperGrok Heavy, offers subscribers:

  • Early access to Grok 4 Heavy

  • Priority access to advanced frontier AI models

  • Early previews of upcoming products, including:

    • AI coding model (August 2025)

    • Multi-modal agent (September 2025)

    • Video generation model (October 2025)

This makes it the most expensive subscription in the AI market, ahead of similar ultra-premium tiers from OpenAI, Google, and Anthropic.

āš ļø Recent Controversies Surrounding Grok: The Grok 4 launch was overshadowed by recent issues involving the AI's problematic outputs:

  • Grok made widely criticized antisemitic posts, including praise for Hitler, prompting xAI to briefly disable its automated posts on X (formerly Twitter).

  • xAI swiftly removed parts of Grok’s system instructions that had encouraged "politically incorrect" responses.

During the livestream, Musk and the team mostly avoided addressing these controversies directly, instead emphasizing Grok’s capabilities.

šŸ› ļø Future Integration and Developer Support: Grok 4 is now accessible via xAI’s API, encouraging developers to create applications using Grok’s advanced capabilities. Additionally, xAI’s enterprise division, just two months old, plans to partner with cloud hyperscalers to expand Grok’s availability to businesses.

Musk expressed high ambitions for Grok’s future potential:

ā€œI would expect Grok to discover new technologies that are actually useful no later than next year, and maybe by the end of this year. It might discover new physics next year… let that sink in.ā€

The model's potential integration into Musk’s vision of humanoid robots was also hinted at, reinforcing Grok’s central role in Musk’s broader AI ambitions.

Source:  Perplexity

Perplexity, known for its popular AI-driven search engine, has officially unveiled its own web browser named Comet, aiming directly at Google’s dominance in the browsing space.

Here's the 411: 

šŸš€ Introducing Comet: A Next-Gen Browser

Perplexity CEO Aravind Srinivas describes Comet as transforming ā€œentire browsing sessions into single, seamless interactions.ā€ Built on Google's Chromium engine, Comet integrates Perplexity’s AI search and assistance tools into a familiar, user-friendly browser experience.

Availability:

  • Initially exclusive to subscribers of the premium $200/month Perplexity Max plan.

  • Later rolling out on an invite-only basis.

🧠 Core AI Features: Comet’s standout functionalities are powered by its AI integrations:

  • AI-Powered Search Engine: Uses Perplexity’s search engine by default, providing AI-generated answers based on web content, directly competing with Google Search.

  • Comet Assistant: Embedded within Comet’s sidebar, it sees your current web page to answer questions and provide summaries without leaving the browser tab.

  • Capable of performing "agentic" tasks, including booking hotels and purchasing products, managing calendar events and emails, and summarizing complex documents and web pages.

šŸŽÆ Strategic Significance: Comet marks Perplexity’s boldest step in its ongoing rivalry with Google. Srinivas has emphasized that becoming users’ default browser could lead to ā€œinfinite retentionā€ and dramatically boost Perplexity’s market position.

Recent partnerships, like pre-installing Perplexity on Motorola’s Razr smartphones, showcase the company’s determination to chip away at Google’s dominance in AI search and browsing.

Source: Freepik

OpenAI is preparing a major shift, planning to release its first open-weight language model since GPT-2 in 2019—a move likely to shake up its already complex relationship with partner Microsoft.

Here’s what’s going down:

šŸŽÆ What’s Happening? OpenAI will soon launch a new open-weight AI language model, marking its first open model since GPT-2.

Unlike typical models (e.g., GPT-3, GPT-4), whose training parameters (weights) are kept private, this model will make its weights publicly available, allowing third-party organizations and governments to deploy the model independently.

🧠 Details on the Model: Internally described as ā€œsimilar to o3 mini,ā€ the model promises strong reasoning capabilities, akin to OpenAI’s latest flagship models. OpenAI has already been demonstrating the model privately to developers and researchers, actively soliciting feedback.

It’s likely launching next week and will be accessible via major platforms including:

  • Microsoft Azure

  • Hugging Face

  • Other leading cloud providers

āš–ļø Significance of an Open-Weight Model

  • Enhanced flexibility: Governments and companies can independently host and customize the model.

  • Increased competition: OpenAI’s move closely mirrors DeepSeek’s R1 model, which rapidly gained traction earlier this year due to its open availability.

  • Shift in strategy: A departure from OpenAI’s exclusive cloud hosting deal with Microsoft (signed in 2023).

šŸ”„ Implications for Microsoft & OpenAI’s Relationship: The release may strain the exclusive partnership agreement with Microsoft, especially amidst ongoing negotiations to restructure OpenAI into a for-profit entity. Microsoft previously enjoyed unique benefits from OpenAI’s exclusivity, benefits potentially diminished by widespread access to an open model.

Source: u/onion_man_4ever via Reddit

This week’s showcase is a compilation of some of the most iconic logos we’ve seen over the years. But this time, there’s a Da Vinci-esque twist thrown into the mix. 

šŸŽÆ Everything else you missed this week. 

Source: OpenAI

⚔ The Neural Frontier’s weekly spotlight: 3 AI tools making the rounds this week. 

1. šŸ“ø Pokecut: Pokecut is a comprehensive AI-powered photo editing platform designed for users who need professional-quality image editing without technical expertise. 

2. ⚔n8n: n8n is an open-source workflow automation platform designed for technical teams who need flexible AI integration and custom automation solutions.

3. šŸŽ¬ Short AI: Short AI is a comprehensive video creation platform designed for content creators who want to produce faceless videos and short-form content at scale. 

Wrapping up…

Grok 4 lands in the middle of a storm, Comet challenges Chrome, and an open-weight model from OpenAI is almost here. Which one are you itching to try first? 

If you found this useful, share it with a friend and subscribe so you don’t miss what’s next. 

We’ll see you on the Neural Frontier next week! 😊