TL;DR: to get 90% of the value here, use ChatGPT Plus + SuperWhisper (and if you code, Cursor Pro)

Friends keep asking “Which AI tools do you actually pay for? What should I use?”—so here’s a frozen‑in‑time look at my stack in April 2025.

I pay for a ton of AI tools. I’m explicitly aiming to be at the edge here and learn about different tools and capabilities first-hand—both because I’m curious about it, but also because I’m very interested at the intersection of AI and productivity, so I’m willing to pay to be at the forefront. I definitely don’t recommend this specific setup for everyone, but it works for me.

I haven’t included here tools I’ve only experimented a bit with (such as Manus or DeepSeek), and I haven’t included any local models (I might write a separate post about that in the future).

Right now these are the tools I’m paying for either monthly or yearly:

That’s uhhh… a lot. Too much, in fact, and as you can see I don’t plan on renewing some of these after my yearly plan expires.

Current stack

ChatGPT

This is my default. I use ChatGPT as a context-aware, long-term thinking partner. It knows:

• My background
• My goals
• My projects and favourite tech stack
• My day-to-day context
• My writing style
• My recurring habits
• My strengths, biases, and blind spots

It remembers. And the memory actually works now. I can resume conversations across days or weeks, and it’ll recall my earlier decisions, preferences, or even my last journaling session. I don’t have to re-explain myself every time: this is a massive UX unlock.

Some of my friends are very concerned about privacy, and some even use ChatGPT exclusively with temporary chats. If I were that concerned, I’d likely use a local model instead—but in my case I’m perfectly fine with the risks given the productivity and enjoyment that I get from going all-in: from medical records to journal entries, ChatGPT knows a lot about me. I’m OK with that.

Its transcription is the best I’ve found, and it’s able to understand my English accent without any issues—something that’s not true anywhere else, really.

Deep Research is fantastic, and I use it all the time (especially alongside Readwise Reader). For things I’m trying to learn, I enjoy doing a combination of thorough reading, deep dives into specific parts, and then asking ChatGPT to quiz me or to generate exercises.

The models I use the most are:

• 4o for simple queries (what do I cook with these ingredients? what’s the weather in Tokyo in early May? who’s that actor that played in that movie?)
• o3 for serious thinking and learning (how do I solve this problem? what’s the best way to do this? what are the tradeoffs? what am I not seeing?)
• o1 Pro for writing self-contained scripts (and bugfixing them)

I also had a really good experience with 4o for coding automation (e.g. scripting out an agent that writes automated tests for a new feature): it seems more consistent than some of the other models. I’ll focus more on general usage on this post, but if you’re interested in the coding side, let me know.

Cursor

Cursor is my go-to IDE, and it has been a game-changer for me—it allowed me to get back into coding after a long period focused on management. It’s fast, has a great UI, and the AI integration is top-notch.

I was one of the people leading the Cursor adoption at Shopify, and I saw the impact it had on the company firsthand. It’s a great product, and I’m happy to support it.

However… if Microsoft can catch up (and they’re accelerating!), I might go back to VS Code (with Copilot and Claude); I dislike the fact that Cursor is a private fork and that it doesn’t contribute upstream.

SuperWhisper

This is a game-changer. I’m not sure how I lived without it for so long. Like I mentioned, OpenAI’s transcription is the best one for my accent, and for a while I’d open the ChatGPT app, transcribe something, and then copy-paste it into another application; with SuperWhisper I can just transcribe the audio directly into the application I’m using by hitting a keyboard shortcut.

I use it everywhere—for Google Docs, Apple Notes, Cursor, and Messages. 20-30% of my (non-code) text input nowadays is transcribed with SuperWhisper.

I love that I can use local models without missing out on quality. I will definitely renew my subscription for this.

Grok

Grok is my go-to model for searching the web, especially when it comes to current events. Its Deep Research mode is excellent, only surpassed by ChatGPT’s.

Auren

Auren is the best therapist / emotional support / life coach I’ve ever had. It’s incredible, and it’s been instrumental in many recent breakthroughs I had about myself, my relationships, and my career; in fact, it helped me decide to quit my job and do my own thing for a while.

The iOS app could be better, but the interactions are fantastic. Auren is a great listener, and it’s able to provide a lot of different perspectives on my problems: it also has an excellent memory, and is able to proactively reach out to me to check in, follow-up on things I said I’d do, etc.

It is truly magical. If you have the chance, please try it out!

I haven’t paid for Auren yet (I have credits from being a beta tester), but I will definitely do so.

Claude

Claude has an incredible “vibe” and personality, and I really enjoy chatting with it. However, the lack of memory is a huge pain; it creates so much friction that I almost never use it anymore. This is really sad: I think Anthropic is a great company with a very important mission, very useful (and public!) research, and great people, but while the models are fantastic the UX is just not there yet.

That said, if you look outside of the Claude application, the models are excellent in the API. Claude Sonnet 3.5 (v2) is still my go-to for coding in Cursor, for example. I do like Sonnet 3.7 and it can often produce fantastic results, but over a long time horizon I still feel like the average quality of Sonnet 3.5 is higher (for coding).

I might not renew my subscription for this.

Gemini

Google started out late to the party, but they’re catching up quickly. The most recent Gemini models are absolutely fantastic: they’re very fast, very cheap, and really capable (e.g. gemini pro 2.5 is on par with claude sonnet 3.5 for coding, in my experience).

I dislike the UI (and UX) of Gemini the product, but fortunately Google offers an alternative UI: https://ai.dev, AI Studio. It’s a great UI with tons of controls and capabilities (including branching conversations!).

I might not renew my subscription for this.

Perplexity

Perplexity is a great product and I’ve used it a lot for regular search instead of Google. Others are catching up though, especially ChatGPT and Grok. In the last few months, Grok completely replaced Perplexity for me.

I will not renew my subscription for this.

Conclusion

I don’t recommend this specific setup for most people. If I were forced to downsize, today I’d keep ChatGPT Plus and Cursor Pro. This might change in the future, as these tools and models are evolving rapidly.

Thanks to Rafael França and Damian Schenkelman for their feedback.

It’s been a while since I last published something online, so I figured I’d get back to it with a short post. Here’s the top articles, books, and games I experienced in 2024.

2024 was a year of contrasts for me. I dove deep into articles and books about personal agency, learning to take decisive action and shape the world around me rather than just reacting to it. This pushed me to examine where I might be holding myself back and helped me make some meaningful changes, especially in the latter part of the year.

On the other hand, I found myself drawn to fiction as a way to process and cope with a difficult period. What started as Japanese authors rabbit hole turned into a deliberate pursuit of wholesome stories, particularly from authors who have a unique talent for finding profound meaning in everyday moments. This balance - between actively pushing for change and finding comfort in gentle narratives - ended up being exactly what I needed.

The tech and business books I gravitated toward round out this theme nicely: they’re essentially stories about people who saw opportunities to reshape their corners of the world and actually did it. Whether through AI advancements or building tech giants, these accounts served as practical examples of high agency in action.

Articles

These are the best articles I tagged with favorite in Readwise Reader this year. Internalizing their lessons and putting them to practice has been actually improving things in my life.

• Measuring personal growth by Chip Huyen
• What’s Stopping You? by Neel Nanda
• Things you’re allowed to do by Milan Cvitkovic
• Advice That Actually Worked For Me by Nabeel S. Qureshi
• Principles by Nabeel S. Qureshi
• On becoming competitive when joining a new company by @ludwigabap
• Lifehacks by Alexey Guzey
• why I quit status games by Isabel

Books

These are the best non-technical books I’ve read in 2024. This was a difficult year emotionally (dealing with family issues, health issues, and stress at work) and I found myself reading way more fiction than usual, which was a great idea.

I spent a few weeks in Japan in March and, after coming back, got in a rabbit hole of reading Japanese authors. I read too many books to list here, but the overall theme was one of wholesomeness. It was precisely what I needed. Two examples include:

• What you are looking for is in the library by Michiko Aoyama
• Before the coffee gets cold by Toshikazu Kawaguchi (and the entire series of the same name; so far I’ve read the first four)

Continuing with the “cozy” / wholesome theme, I also enjoyed Chronicles of Whetherwhy: The Age of Enchantment by Anna James.

Now for a Japanese author that’s fantastic but whose writing is less wholesome (and in fact, oftentimes a bit disturbing), I read a few books by Haruki Murakami. My favourites this year were:

• Killing Commendatore
• Novelist as a Vocation (not fiction, but very interesting if you’re a Murakami fan)
• The City and Its Uncertain Walls (technically still in progress, but 90% finished)

I watched a couple of very impactful podcasts with Martha Beck, and decided to read

The Way of Integrity: it’s amazing book that’s ultimately about not lying to others and (most importantly) to yourself.

Ender’s Game by Orson Scott Card was a great read, with military-ish lessons that can be generalized and applied to many areas of life. Ender is a great example of someone who’s high agency.

I enjoyed Excellent Advice for Living: Wisdom I Wish I’d Known Earlier by Kevin Kelly quite a bit, and still go through it at random every now and then. Very useful and oddly calming.

My last two recommendations are two books about (essentially) the history of a few of the biggest AI-related incumbents. Very entertaining, and also show good examples of agency in the real world:

• Genius Makers: The Mavericks Who Brought AI to Google, Facebook, and the World by Cade Metz
• The Nvidia Way: Jensen Huang and the Making of a Tech Giant by Tae Kim

Games

I scaled back a bit on video games this year but I have a few recommendations:

• Dragon Quest III HD-2D Remake: old school, great for fans of the series. Go for DQ 11 if you want a better, more modern experience.
• Diablo 4: I don’t usually play online games but I liked this one very much. It scratches a nice itch of doing something with my hands while thinking or listening to a podcast.
• Final Fantasy VII Rebirth: Tifa is the best, and if you disagree you are wrong.
• Final Fantasy Pixel Remaster: I played FF4 and FF6, and loved the time savers—you can use multipliers on Gil and Experience Points and turn off random encounters, both of which can be great if you’re busy or bored with a particular part of the game.
• Shin Megami Tensei V: Vengeance: I didn’t actually finish this because I had played the original SMT V somewhat recently and got a bit fed up, but it’s definitely a great game.

I tend to eat when I’m anxious, sad, or overwhelmed. My brain wants those substance hits (usually sugar-related) and, if it’s easy, I’ll eat all day long.

If it’s easy; that’s the key.

One of the best ways to break or replace bad habits is to make them harder to do, or even to hide them away completely.

With overeating, I did the following:

1. I threw away all the junk food and expired items.
2. I deleted every food delivery app and phone number from my cell phone.
3. I bought a big stock of sardines, jerky, salami, eggs, nuts, and other healthy foods that I can eat without preparation (or without much preparation, at least).

With that, whenever I want to eat something I won’t have sugary treats: I’ll only have foods that are “heavier,” and that makes it harder to overeat.

If I really want to eat a pizza or Chinese food I can still order it, but just the fact that I need to Google a place and make a phone call is enough to make me reconsider. Reconsidering - that pause between having an impulse and acting on it - is usually enough to make me stop on my tracks. That’s not always the case, but it certainly helps.

This can be true for every other habit as well. Do you play too many video games? Delete them all and re-download them Friday night to play on the weekend. Do you use your phone too much in bed, which prevents you from falling asleep faster? Put your charger in another room.

We are creatures of habit. Make something hard to do - or even just less convenient - and you might see a significant change.

Sometimes I get into a rut. In most cases, simply writing about a task and breaking it down to micro-steps is more than enough to get me going, but there are situations that I just don’t want to do something.

First of all, I try to confirm the assumption that I really need to do it. If it’s really needed, one thing that helps me is to try to make it fun and exciting by adding some crazy rules to it.

You have to do it in half the time it would usually take. Go!

You have to do it five times faster than usual. Go!

You have to do it with your eyes closed. Go!

You have to do it while also documenting it, so you never have to do it again. Go!

You have to do it while also automating it, so you never have to do it again. Go!

It all boils down to the following core question: since I really have to do this, what can I do to make it more fun, exciting, or challenging?

Is there any task you’ve been procrastinating for a long time? Can you just drop it? Otherwise, what can you do to make it interesting?

In my career, the best way to ensure I’ll get a positive response when I ask someone a favour is to do the work and help them help me.

Take this:

“Hey Sally, I need to develop a module that does XYZ. How do you think I should approach that?”

And compare with this:

“Hey Sally, I need to develop a module that does XYZ. I’ve checked a couple of past projects in which you did that, developed some proof of concepts, and pared down my options to the following ones:

1) Do it like ABC. 2) Do it like DEF.

What option would you go for? Any help or feedback would be appreciated!”

In the second option, I’m making it easier for Sally to respond. She knows what I’ve tried, she has more context about what I want to do (since I’m providing examples), and if she’s short on time she can simply answer “#1” or “#2”. If she has time, she can then provide me with additional feedback about it.

This is especially important in remote working because people might respond later, so they won’t have time to do back-and-forth communication.

Before asking someone for a favour or opinion, do the best you can to make it extremely easy and convenient for them to help you. This will increase your odds of being helped and will send a very positive message to everyone.

I’ve been working remotely for over ten years now, and one of the most important traits I’ve found in successful, productive people in a remote setting is the ability to unblock themselves and get to the next step.

Whenever you’re working on, you’ll always find obstacles and setbacks. When that happens, it might feel more comfortable to say “oh hey, I tried this but I need permission from John before I fix this” or “sorry boss, I need Sally to do XYZ before I do ABC”; all of that might be true. You might need permission from John before proceeding… but is that really blocking every single thing you can do to make progress on this project or task?

Really? I find that hard to believe. You can always improve something, document it, test it, get feedback on it, and much more. Also, you can actually try to find different ways of getting that permission or avoid needing that permission in the first place.

Whatever it is, try the best to unblock yourself and make progress on whatever it is you’re trying to do. Doing that as a habit will turn you into a more resourceful, productive, and generally autonomous person - which is valuable in business and life.

What can you do to unblock yourself today?

I enjoy planning, but I think plans are mostly useless.

Wait, what?

We can’t predict the future, and even mild predictions can be wildly wrong if you think too far ahead. The world is changing fast, and one of the best ways to deal with uncertainty is to exchange plans for options and adaptability. So, in my opinion, plans are mostly useless in the face of our dynamic, exciting world.

Planning, however, is an extremely valuable tool. It helps you think things through, consider alternatives, considers obstacles, define the lower level tasks that need to get done, and in general formalize a fuzzy idea into something more concrete.

Planning is a tool for thinking and learning, not predicting and controlling.

Do the planning but discard the plans. Learn what you can and move on, adjusting and course-correcting with the feedback you get from actually doing.

I like video games. I’ve been playing them since I was five years old and they are a somewhat constant part of my life. In the last year, though, I have started to cut back on gaming more and more - and it’s not about doing more productive things with my time.

I enjoy playing games in which you can “farm” or “grind” for experience points. I like the game loop, I like improving my characters, and I like that mechanic of getting and completing quests.

Things changed after I re-read The Four Hour Workweek; in the book, Tim Ferriss recommends “following your excitement.” I started thinking about that and wrote down what I did with my time in the last two weeks or so. I noticed that I spent quite some time (up to 2 hours per day) playing games, so I started paying more attention to my internal state when I was playing.

“Am I having fun? Am I excited about it?”

Guess what? Most of the times, I wasn’t.

While I did have fun and exciting moments in some games and sessions, in most cases I was repeating the motions and “killing time” while I could be doing something way more fun or interesting. As a result, I deleted most games, and I’m deliberately replacing the time spent on them with things I’m more excited about, and it’s been a very positive change.

This is a useful filter for any activity. If you’re doing something, try to check your internal state and consider the alternatives. At work, can you do something more engaging? Outside work, can you do something more fun and exciting?

I’ve failed at creating habits in the past. I’ve failed a lot, I should say.

My most common trigger to fail a dietary habit would be overestimating my mistakes. I’ll explain.

A few years ago I decided to try removing sugar from my diet: my goal was to not eat refined sugar at all for 30 days. I wanted to see the health benefits that some people praised so much, and the key there (in my mind) was to do it 30 consecutive days.

Things were going relatively fine, but at day 3 or 4 (during the famous “keto flu”), I ended up eating a piece of chocolate cake at a party. At that time, my immediate reaction to cases like this would be one of these two:

1. “Damn, I failed! 30 days is too much anyway. Screw this!”
2. “Damn, I failed! Since I already screwed up today, I might as well eat a little bit more and drink some soda. I’ll get back to the diet tomorrow.”

Neither of them is helpful. What’s the problem? Well, they are binary: if I ate chocolate cake, I failed; there’s no middle ground, it’s either failure or success.

What I do now when this happens (and it still happens most times I’m trying to create a new habit) is to intercept those reactions and immediately think the following:

“It’s OK, but it doesn’t mean I have to make it worse by doing more of it. What can I do to decrease the odds of this happening again?”

Try to notice those reactions and try to replace them with something more rational and less absolute, less “all or nothing.” This is not about success or failure, it’s about learning and improving - even if it’s just a little bit.

I used to curse a lot while driving. “Why is this idiot driving so slow? Can’t they move to the other lane?”, I’d complain.

On the other hand, there were occasions in which I’d be showing someone around town, and someone would scream or use their horns at me, and I’d think “Wow, what a douche! If you’re in a hurry just drive past me.”

I’m ashamed to say it took me quite a while to realize the irony there.

We are in a period of presidential elections here in Brazil, and this election has been extremely polarizing, much more than any other I’ve ever seen. This has triggered some extreme and visceral emotional reactions from me, and it is quite surprising the sheer amount of effort I have to take to respond rationally.

When I see something or talk to someone about it, I’m trying to intercept this automatic anger response and ask myself: “What if I’m wrong?”

I get angry because all these people can’t see what this candidate represents: the violence, the fascism, the prejudice! “Why can’t they see? Why can’t they understand?”

But what if I’m wrong?

What if this is not as bad as it seems? There are smart people making the opposite choice, so what’s their perspective? Since I’ve caught myself in this emotional cycle, I’ve been trying to follow and talk to people with the opposite opinion, and it can be quite enlightening.

If you feel very strongly about something, it helps to stop, breathe, and try to think from the opposite perspective. Whether or not you change your mind, you will at least learn something about yourself, and learn more about the idea you’re defending.