John Tian
@johnrtian

stanford | founder @ gradewithai

 SF
Joined April 2023
85 Photos and videos
@skeptrune would love to know how close this is haha
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Frontier models have outgrown the Supabase backend. ConceptCool allows agents to build on full @Railway infra, unlocking scale and applications not possible on Lovable, Bolt, etc. Best of all, it's genuinely fun to build a prompt with someone else in real time!
John Tian
@johnrtian
Aug 31
Article

Raising the ceiling for app builders

Today we’re releasing ConceptCool, an internal experiment that builds and hosts scalable, ambitious software projects with friends. Instead of limiting agents to a pre-built set of primitives such as

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John Tian retweeted
Phil Chen
@philhchen
Aug 31
We built ConceptCool for ourselves and it turned out too good not to share. Multiplayer app-building with full @Railway underneath. You and a teammate edit the same prompt live, and the app you get scales from 1 to 1000 out of the box. It has real queues, containers, and background jobs, so it actually reflects real tools beyond a Claude artifact or CRUD app. Nothing we've used comes close for shipping internal tools fast. Go try it.
John Tian
@johnrtian
Aug 31
Article

Raising the ceiling for app builders

Today we’re releasing ConceptCool, an internal experiment that builds and hosts scalable, ambitious software projects with friends. Instead of limiting agents to a pre-built set of primitives such as

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Article

Raising the ceiling for app builders

Today we’re releasing ConceptCool, an internal experiment that builds and hosts scalable, ambitious software projects with friends. Instead of limiting agents to a pre-built set of primitives such as

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John Tian retweeted
TK Kong
@tkkong
Jul 29
We’re hiring for designers & engineers. Come work with me & @philhchen
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Amp is the best coding agent in the world. They've always been at the bleeding edge, but unaffordable because they didn't subsidize. Now, you can bring your own ChatGPT sub and get unlimited remote VMs, allowing you to infinitely parallelize and work from anywhere. Try them out!
Quinn Slack
@sqs
Jul 17
Introducing Amp Subscriptions $20 or $200 gets you on the agentic frontier with us.
Today we're launching Amp Subscriptions in Beta. You can now subscribe monthly to Amp and explore the frontier with us, with cheaper and more predictable pricing. https://ampcode.com/news/subscriptions Amp Is Not (Necessarily) Expensive Anymore Amp just got a lot cheaper for many of you, especially if you link your ChatGPT subscription. We know you've been asking for this for a long time. Until now, Amp's pricing model has been pay-as-you-go for tokens at API prices, no subscription. Compared to other agents on monthly subscriptions, this made Amp more expensive—"the Apple or Porsche of agentic coding tools", to put it nicely. But everything is changing. Great tokens are reasonably priced. Good-enough tokens are downright cheap (like GLM-5.2 in our new low mode). Being on the frontier no longer requires using the most expensive models. You can still pay-as-you-go in Amp; monthly subscriptions aren't required.

ALT Today we're launching Amp Subscriptions in Beta. You can now subscribe monthly to Amp and explore the frontier with us, with cheaper and more predictable pricing. https://ampcode.com/news/subscriptions Amp Is Not (Necessarily) Expensive Anymore Amp just got a lot cheaper for many of you, especially if you link your ChatGPT subscription. We know you've been asking for this for a long time. Until now, Amp's pricing model has been pay-as-you-go for tokens at API prices, no subscription. Compared to other agents on monthly subscriptions, this made Amp more expensive—"the Apple or Porsche of agentic coding tools", to put it nicely. But everything is changing. Great tokens are reasonably priced. Good-enough tokens are downright cheap (like GLM-5.2 in our new low mode). Being on the frontier no longer requires using the most expensive models. You can still pay-as-you-go in Amp; monthly subscriptions aren't required.
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John Tian retweeted
TK Kong
@tkkong
Jul 15
Article

Design at Concept

We're hiring a designer at Concept. Concept helps teams ship internal AI apps and agents. One of our advantages is how simple and easy it is for non-technical users to build powerful tools that run

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John Tian retweeted
TK Kong
@tkkong
Jul 14
We're opening up early access. Phil and I have been working with teams to ship internal AI apps and agents. We’re applying our learnings from Ramp Labs, OpenAI, and DeepMind to help operations teams scale faster. DM if you're interested in trying it out!
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PSA if you're running into overzealous safeguards in claude code, /compact and "continue"!
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to be clear this does not work if you're trying to do bad things. it's worked great for us at Concept when they falsely trigger
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John Tian retweeted
Phil Chen
@philhchen
Jul 2
Article

Career advice in the age of AI

AI models get better at anything you can write a loss function for, and school is mostly loss functions: well-defined problems graded against known answers. Therefore, the valuable work of the next

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John Tian retweeted
TK Kong
@tkkong
Jun 29
Phil and I are hosting a watch party for the USA world cup match this Wed at our HQ in SF Marina. Engineers from OpenAI, Anthropic, and other frontier startups will be there. Few more spots remaining. Reply/DM for invite!
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John Tian retweeted
Phil Chen
@philhchen
Jun 27
We've figured out technical interviews in an agent-first world. The 2 most critical skills are problem finding and problem solving. We have tests for each that are truly impossible to hack or cheat. DM me if you want to join our team and try it out.
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I'm joining Concept this summer to build the future of work with @philhchen and @tkkong! This was supposed to be my last free summer before Stanford: I'd planned to travel, hobbymax, and go on crazy side quests, not work. But Concept’s mission was too compelling to pass up, and conversations with Phil and TK won me over. Phil is an extraordinarily technical builder who also sees the bigger picture, and TK is a rare blend of extremely strong business and design skills. Excited for a summer of poker nights and shipping!
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one shot. 20 minutes. everything works. love ya @capydotai
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387MB for a new tab is wild. Ship less.
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hot take but chatting with ai shouldn't be like talking to a friend. ai should be a precision tool that does exactly what you want with maximum truthfulness and efficiency. once you go down the ai companion route, you can't go back...
Flavio Adamo
@flavioAd
8 Aug 2025
Replying to @sama
ngl 4o just had that chill vibe. felt more like chatting with a smart friend than an AI 5 is powerful but feels more… AI
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it's about time.
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you can use the codex cli with your chatgpt plan!
Valentin
@s23amourai
7 Aug 2025
New codex pricing @testingcatalog @kimmonismus
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