BB Digest: GPT-4.5 is confusing

Hey folks, Matt from Replit came for an amazing workshop yesterday where he shared his process of planning and building an app (of course coded by AI). Recording is up on the website. Let us know if you have specific workshop requests…

TLDR; inside today’s newsletter

• GPT 4.5 falls short of (unrealistic) expectations

• Copilot for Clinicians and Opera’s browser agent

• ICYMI: guides for creating apps from Figma and pricing simulators

• top conversations from the community

• 7 new AI tools with an insane voice demo

• 6 interesting reads from the weekend

• to-do’s

 🔎 Trends & news

• GPT-4.5 is OpenAI’s last non-reasoning model. It’s live as a research preview for ChatGPT Pro users and coming to Plus and other plans in the next few weeks. The good part is that it is integrated with most ChatGPT features, like Search, Canvas, and image and file uploads.

  • It’s trained on an order of magnitude extra compute and thus an extremely expensive model (it’s priced at $75/$150 in the API vs GPT 4o’s $2.5/$10 price point). But if history repeats, we could see 5x lower prices by year-end.

  • It’s a much better model compared to the original GPT-4, and decently better compared to 4o—especially for writing. But for reasoning, maths and coding, it lags behind o1/o3.

  • I am still testing this model, but in my opinion, it’s a base model waiting for further improvements like price cuts, reasoning boost and more.

• Microsoft is launching Dragon Copilot, an AI assistant for clinical workflow, so clinicians can spend less creating and searching documents. On the other side of the coin, ChatGPT saved someone’s life by telling them to go to the hospital when a doctor wasn’t readily available for consultation.

• Opera is previewing its Broswer Operator. It’s similar to ChatGPT’s Operator in utility—it can take actions in the browser on your behalf, but Opera claims that it’s different in a) how it’s built and b) keeping your data private.

• Build and launch websites faster with Webflow’s AI site builder. Share your vision, define your style, and let AI generate a theme tailored to your brand. Customize it easily and let AI do the heavy lifting to build out the rest of your site and publish with confidence. Not bad for those wanting to move from zero to website fast!*
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👀 ICYMI: New stuff we’ve launched

Figma is where most of us do our thinking for building a product, and the current AI models are really good at creating software for a clearly thought-out idea. Our latest blog covers how to bring your ideas in a Figma design to life as an app.

We've also published a tactical guide on how you can uncover hidden revenue with pricing simulations. Because let’s be honest, no one knows what to price your product, and we just go with the $20/mo plan blindly.

Upcoming workshops:

• Thursday - How AI can be your ultimate business partner (sign up)

• Next week - Memes & AI (sign up)

💬 Inside the community this week

Become pro to join us building and learning together.

• Keanan is hosting a webinar today about experimenting with different AI models. (link)

• Fardeen built colorhippo.com with a smart hack to use Bolt+ Lovable + Cursor together. (link)

• Aishwarya analyzed 300+ AI agents and created a filterable dataset. (link)

• Rick asked about the best way to use models from Claude and OpenAI for large writing projects. (link)

• Alexandra asked about n8n AI Agent setup for Gmail. (link)

• Randeep received suggestions on using Bolt as a non-technical user from the community. (link)

• Damien asked for Cursor tutorials to build a landing page. (link)

• Sam asked about the best no-code/low-code solution for an MVP with Airtable data. (link)

• Wyatt & Christian talked about the disappointing GPT 4.5 demo. (link)

Join the conversation, plus full access to courses and workshops by becoming a pro member today!

⚙️ Top new tools

• Memex - Build apps by chatting – the desktop AI builder for any tech stack. For extra free credits use code ‘BB’ = Build Boldly.*

• Sesame - Conversational voice chat that doesn’t feel robotic at all. Take a min and try it out.

• Data Science Agent - Upload your data, define your analysis goals, and watch a Colab notebook take shape.

• Forage Mail - Calm your inbox with AI without any new app.

• Context Tags in Lex - Teach AI to write like you (or any specific style).

• VoicePanel - Use AI to collect feedback on your products.

• Unsloth - Finetune LLMs 2x faster, 80% less memory.

More tools here →
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 📜 Interesting posts

• How Andrej Karpathy uses LLMs - A 2-hour masterclass for free.

• Making Cloudflare the best platform for building AI agents.

• Estonia launches AI in high schools with US tech groups.

• Anthropic raises Series E at $61.5B post-money valuation.

• AI is killing web traffic for some companies, yet others are thriving.

• OpenAI’s startup empire: The companies backed by its venture fund.

📌 To-dos

That’s it for today. Feel free to hit reply and share your thoughts. 👋