GritAI Newsletter: Lovable just became the fastest-growing startup in history ๐Ÿ‡ธ๐Ÿ‡ชย ๐Ÿš€


Hey ๐Ÿ‘‹

Excitement around vibe coding shows no signs of fading. This week, Claude Code introduced sub agents, GitHub launched its own vibe coding tool Spark, and Lovable became the fastest-growing software startup in history ๐Ÿ‡ธ๐Ÿ‡ช ๐Ÿš€

One of the most talked-about vibe coding tools right now is Claude Code. Since its launch in February, it has picked up serious momentum. Builders on X and YouTube are praising its ability to reason, refactor, and manage complex projects like a true engineering partner. New use cases are being shared every dayโ€”from research and automation to content creation. Some are even calling it โ€œClaude Agentโ€ because it is capable of far more than just writing code.

But that was not the only AI news this week. Letโ€™s jump in! ๐Ÿ„โ€โ™‚๏ธ

How to vibe code a smooth onboarding flow ๐Ÿ“ฑ

In this video we continue where we left off by building a complete onboarding flow for our app โ€” including multi-step questions, training goals, and profile pictures. We use Cursor AI and Supabase to personalize the user experience, all without writing code.

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Watch the episode below ๐Ÿ‘‡

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AI Pulse ๐Ÿšจ

A bite-sized curation of this week's most important AI news.

โšก GitHub launches Vibe Coding tool
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GitHub has launched GitHub Spark in public preview for Copilot Pro+ subscribers. Spark allows users to build and deploy full-stack apps directly from natural language, with zero setup. It includes built-in support for data handling, LLM inference, deployments, hosting, and GitHub auth. Users can integrate models from OpenAI, Meta, DeepSeek, and xAI, then ship apps with a single click.

๐Ÿ”ง Cursor launches Bugbot for better code reviews
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Cursor has released Bugbot, an AI tool that improves code quality by catching bugs and vulnerabilities before they ship. Early results show 50%+ resolution rates and up to 40% faster reviews. Engineers say it excels at spotting subtle flaws in AI-generated code, making it a strong fit for modern codebases.

๐Ÿค– Claude Code adds sub agents
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Anthropic has added sub agents to Claude Code, enabling developers to spin up specialized AI helpers for focused tasks. Each sub agent can run with its own system prompt, context window, and tools. They can activate automatically when relevant or be manually triggered when needed.

๐Ÿš€ Replit launches Queue for parallel agent work
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Replit introduced Queue, a feature that lets users submit tasks while the Agent is still working. This eliminates idle time and improves workflow efficiency, especially for multi-step or batch processes.

๐Ÿ›๏ธ White House outlines AI plan focused on deregulation
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The Trump administration released its AI Action Plan, a 23-page proposal focused on accelerating AI through deregulation. It includes loosening environmental rules, restricting funds to states with strict AI laws, and requiring AI models to avoid โ€œtop-down ideological biasโ€ in order to qualify for federal contracts.

๐Ÿš€ Lovable becomes fastest-growing software startup ever
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Swedish startup Lovable hit $100M ARR in just eight months, setting a new record. With 2.3M active users and 10M projects created, the vibe coding platform also raised $200M at a $1.8B valuation, making it Europeโ€™s newest unicorn.

๐Ÿ” Gemini 2.5 Flash-Lite now generally available
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Google has released the stable version of Gemini 2.5 Flash-Lite, its fastest and cheapest model in the Gemini 2.5 family. It is already in use for tasks like satellite diagnostics and video translation in over 180 languages, with latency reduced by 45%.

๐ŸŽจ Google unveils Opal for no-code AI mini-apps
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Google debuted Opal, an experimental builder that lets users create AI-powered mini-apps using natural language and drag-and-drop editing. Currently in US-only public beta, it targets fast prototyping, productivity apps, and low-code AI tools.

๐Ÿ–๏ธ Meta demos EMG-powered gesture wristband
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Meta has revealed a prototype wristband that lets users control devices with hand gestures. The device reads forearm muscle signals using EMG, predicting movement before it happens. Unlike brain implants, this requires no surgery and works instantly with AI-trained models.

๐Ÿ‡ฌ๐Ÿ‡ง OpenAI partners with UK on AI adoption
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OpenAI and the UK government have signed an MOU to promote AI in both the public and private sector. OpenAI will expand its presence beyond its current 100-person London office, working with government teams to boost national AI readiness.

๐Ÿ† DeepMind hits gold medal level at Math Olympiad
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DeepMindโ€™s Gemini Deep Think system has achieved gold medal-level performance at the International Mathematical Olympiad, solving five of six problems.

๐Ÿ† OpenAIโ€™s reasoning model matches Olympiad gold
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OpenAI announced that its experimental model also reached gold medal-level performance at the IMO. The model solves high-school level math problems across algebra, geometry, and number theory, marking a key step in multi-step reasoning capabilities.

AI-powered running coach vibe coding series ๐Ÿƒ๐Ÿ› ๏ธ

Follow along as we build a complete AI fitness app from scratch using Cursor and Supabase. Each part adds real features, step by step.

Part 1 โ€“ Build a polished landing page (link)โ€‹
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We create a clean, professional landing page for our AI-powered running coach using Cursor.

Part 2 โ€“ Turn it into a real app (link)
We transform the landing page into a working Next.js app with Supabase login, GitHub version control, and a protected dashboard.

Part 3 โ€“ Add a dynamic content system (link)โ€‹
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We build a simple backend for managing workouts, including a content archive and admin editing tools.

Part 4 โ€“ Build smooth onboarding and user profiles (link)โ€‹
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We add a multi-step onboarding flow, profile pictures, and editable user preferences.

More to come soon ๐Ÿš€

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GritAI Newsletter

Weekly AI news and content on how to make AI work for you ๐Ÿ’ช

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