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xAI Offers Grok 4 for Free Worldwide
Good morning. It’s Monday, August 11th.
On this day in tech history: In 2011, the Imagenet Large Scale Visual Recognition Challenge added the fall 2011 dataset expansion, which would later be the battleground for AlexNet’s 2012 shock win. The update included over 14 million labeled images across 20,000 categories, pushing models to handle unprecedented scale and diversity in computer vision benchmarks.
In today’s email:
GPT-5’s bumpy launch
xAI offers free access to Grok 4
OpenArt now creates ‘brain rot’ videos in just one click
5 New AI Tools
Latest AI Research Papers
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Today’s trending AI news stories
GPT-5’s bumpy launch spurs urgent stabilization effort by OpenAI
GPT-5’s August 7 launch promised a leap in AI reasoning but has been marred by routing glitches, benchmark misses, and presentation missteps. The new “Thinking” mode, intended for complex, slower reasoning, was undermined by an automatic router that frequently defaulted to faster, less capable models, leading to degraded algebra, coding, and logic performance compared to GPT-4o.
Early adopters reported failures in problems GPT-4o had previously solved, and internal benchmarks lagged behind rivals such as Anthropic’s Claude Opus 4.1 in real-world “one-shot” reasoning tests. Security firm SPLX also identified vulnerabilities to prompt injection and obfuscated logic attacks, raising reliability concerns.
The issue with GPT-5 in a nutshell is that unless you pay for model switching & know to use GPT-5 Thinking or Pro, when you ask “GPT-5” you sometimes get the best available AI & sometimes get one of the worst AIs available and it might even switch within a single conversation.
— Ethan Mollick (@emollick)
3:58 PM • Aug 9, 2025
The launch was further overshadowed by a “chart crime” during the livestream, where bar charts misrepresented benchmark values despite the underlying numbers being correct in official documentation. One slide incorrectly depicted GPT-5’s 50% “coding deception” rate as visually smaller than o3’s 47.4%, while other bars appeared identical despite numerical differences. CEO Sam Altman later called this a “mega chart screwup,” attributing it to late-night slide preparation.
today we are significantly increasing rate limits for reasoning for chatgpt plus users, and all model-class limits will shortly be higher than they were before gpt-5.
we will also shortly make a UI change to indicate which model is working.
— Sam Altman (@sama)
5:56 PM • Aug 10, 2025
In response, restored GPT-4o access for Plus subscribers, doubled message caps, and announced UI changes to display active models. Usage metrics suggest demand for advanced reasoning is surging, with daily adoption jumping from under 1% to 7% among free-tier users and from 7% to 24% for Plus subscribers. Altman framed this trend as central to GPT-5’s future, stating capacity allocation will soon be rebalanced between ChatGPT, API access, research, and product demands. Read more.
xAI offers free access to Grok 4 worldwide with generous usage limits
xAI is executing a two-pronged strategy: flood the top of the funnel to capture real-world signals and simultaneously build a radically different foundation model that can turn those signals into higher-order capabilities.
Grok 4, previously paywalled, is now free worldwide with “generous” temporary limits. Auto mode invokes extra computation when prompts demand higher accuracy, while Expert mode lets users manually trigger heavier reasoning. Grok 4 Heavy remains exclusive to SuperGrok Heavy subscribers, and Grok Imagine’s image/video generation is still US-only. Elon Musk confirmed ad integration is planned to offset the high GPU costs powering Grok.
Grok 4 is now free for all users worldwide!
Simply use Auto mode, and Grok will route complex queries to Grok 4. Prefer control? Choose "Expert" anytime to always use Grok 4.
For a limited time, we are rolling out generous usage limits so you can explore Grok 4’s full
— xAI (@xai)
4:00 PM • Aug 10, 2025
Grok’s next iteration, now fully pre-trained, will debut as the model’s first natively multimodal foundation system that ingests raw audio/video bitstreams rather than relying on transcripts or extracted frames. This implies spatiotemporal tokenization and end-to-end multimodal representations that capture tonal nuance, mood, and real-time context without intermediate transcription.
Our V7 foundation model, which finished pre-training last week, is natively multimodal.
It processes a video/audio bitstream directly, understanding it without converting it into anything, so, for example, it will finally understand nuances in how you speak that convey mood and
— Elon Musk (@elonmusk)
3:59 PM • Aug 10, 2025
Musk says V7 will boost “one-shot” game generation by generating a game, playing it, observing on-screen feedback, editing code, and feeding those rollouts back into training, a model-in-the-loop self-improvement pipeline that raises one-shot success probability but also multiplies compute, latency, and safety surface area. Read more.
Former Googlers' AI startup OpenArt now creates ‘brain rot’ videos in just one click
OpenArt, an AI video startup founded by two ex-Google engineers, has rolled out its “One-Click Story” feature in open beta. The tool converts a single sentence, full script, or song into a one-minute video with a coherent story arc, offering three formats: Character Vlog, Music Video, and Explainer. Users can edit via storyboard mode and select from over 50 integrated AI models, including DALL·E 3, GPT, Imagen, Flux Kontext, and Stable Diffusion.

Image: OpenArt
OpenArt claims an edge in maintaining character consistency across scenes, an ongoing limitation in many AI video generators. The platform serves 3M monthly active users, runs on a credit-based subscription starting at $14/month, and is on track for $20M ARR. While the tool lowers creative barriers, it faces legal risks over potential IP infringement, which it mitigates with automated rejection systems and possible licensing deals. The company has raised $5M and remains cash-flow positive. Read more.
Google Finance adds AI-driven queries, technical charts, real-time news
Google is rolling out an AI-powered upgrade to Google Finance in the U.S., adding natural language Q&A, advanced charting, expanded asset coverage, and a streaming news feed. Users can now pose complex market queries, such as multi-stock comparisons or sector performance analysis, and receive AI-generated answers with linked sources. The new charting engine supports technical indicators like moving average envelopes and candlestick views, allowing for more granular trading insights.

Image: Google
Coverage now extends beyond equities to include commodities and additional cryptocurrencies, while a real-time headline feed delivers market-moving news without leaving the page. By embedding AI directly into Finance, Google is targeting competitors like Yahoo Finance and Seeking Alpha, and aiming to reduce user reliance on standalone AI chatbots for financial research. The redesign is rolling out gradually, with the option to toggle between old and new interfaces. Read more.

China’s AI drug discovery companies land huge deals with Big Pharma
Hugging Face AI Sheets integrates models directly into datasets
AI industry horrified to face largest copyright class action ever certified
Nvidia researchers calls oversized AI agents costly, wasteful, and replaceable
Apple researchers taught an LLM to predict tokens up to 5x faster
Black Hat: Researchers demonstrate zero-click prompt injection attacks in popular AI agents
Agent-based AI systems face growing threats from zero-click and one-click exploits
Yet another study doubts that LLM reasoning shows true logic over pattern imitation
Researchers identify “AI-AI Bias” in digital assistants, potentially disadvantaging humans
RIP, Microsoft Lens, a simple little app that's getting replaced by AI

5 new AI-powered tools from around the web

arXiv is a free online library where researchers share pre-publication papers.


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