
Ankit Gupta
@GuptaAnkitV
general partner @ycombinator. co-founder of @reverielabs (acquired). @harvard CS. 🫶 to @lucylnam.
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good lord this team ships fast
You wanted shadcn — so we built the heinous infra to make it work. Introducing Agent Arena, starting with the best: Claude Code by @AnthropicAI Codex 5 by @OpenAI Cursor Agent by @cursor_ai Devin by @cognition Gemini CLI by @GoogleDeepMind Grok Code Fast 1 by @xai 1/ Your…
Introducing: The fastest web agent in the world⚡[ bu 1.0 ] We built a special LLM that reduces the latency by 6x while keeping the same performance. The agents can now take 20 steps per minute. How many can a human do? 👨💻 ⚡Go give it a try. It feels crazy⚡ Read the comment…
![gregpr07's tweet image. Introducing: The fastest web agent in the world⚡[ bu 1.0 ]
We built a special LLM that reduces the latency by 6x while keeping the same performance. The agents can now take 20 steps per minute.
How many can a human do? 👨💻
⚡Go give it a try. It feels crazy⚡
Read the comment…](https://pbs.twimg.com/media/G2ywmI6bIAANNRN.jpg)
just woke up to find we're #1 trending on GitHub! what a wild ride - and awesome to see 3 YC teams up there together!

Instruction-based art gives us a rare opportunity to ask whether it is the idea that defines good art, and if models can capture it. Conceptual art was pioneered by Sol LeWitt, whose work took the form of instructions rather than completed pieces. Today, we introduce…

I'm excited to share we're shipping a new model router at @mastra_ai today! Use 600+ models from 45 providers with a single API 🧵
so is anyone else even trying anymore

Ah so that’s what he’s been up to 👀👀
One of our products I’ve been heads-down focused on recently. Today, we launched the fundamental APIs for agentic commerce and integrated best-in-class fraud prevention directly into the flow. Excited to see how consumers and businesses use this going forward!
Meet Stamp: the first AI Secretary. Stamp handles your emails and calendar for you. Works 24/7. Tailors itself to you. And it costs as much as a happy meal.
"AI isn't replacing radiologists" good article Expectation: rapid progress in image recognition AI will delete radiology jobs (e.g. as famously predicted by Geoff Hinton now almost a decade ago). Reality: radiology is doing great and is growing. There are a lot of imo naive…
In 2016 Geoffrey Hinton said “we should stop training radiologists now" since AI would soon be better at their jobs. He was right: models have outperformed radiologists on benchmarks for ~a decade. Yet radiology jobs are at record highs, with an average salary of $520k. Why?

super cool to see this team release their first dataset from excavators in construction sites
✨✨ Announcing Open Source Dataset from excavators in real construction sites retrofitted by @flywheel_inc! ✨✨ This 100hrs of observation+action data enables training autonomy models for excavators. We were able to train a small task model from 6 hours of dataset on a…
may the best builder win. cast your vote today
If you're graduating this year, you can now apply early-decision to YC. You can get funded now, graduate, and roll into your startup right after school.
Introducing Early Decision. For students who want to do a startup but also want to finish school first. Apply now, get funded the moment you're accepted, and do YC after you graduate. ycombinator.com/early-decision
This is like if the New York Times sought out the people behind California's high speed rail project and asked them to criticize Japan's rail system. nytimes.com/2025/09/20/us/…
Greptile has raised $25M to Kill The Bug. The round is led by Benchmark with @ericvishria joining our board. Today, code is written by humans and a variety of coding agents like Devin, Claude Code, and Cursor. Greptile serves as the independent and universal code review layer.…
People often wonder how startups came up with their names. In Greptile's case, it was brainstorming on slack with YC partner @bradflora during the batch. "You could add some stuff after grep to make a new word" "What do you think of greptile.com?" "but is it a multi…



Greptile has raised $25M to Kill The Bug. The round is led by Benchmark with @ericvishria joining our board. Today, code is written by humans and a variety of coding agents like Devin, Claude Code, and Cursor. Greptile serves as the independent and universal code review layer.…
Last week, we wrapped up the summer batch @ycombinator. Demo Day was surreal! Super fun to get on stage with @ianshi3 @phil_fradkin and share more about @blankbio_ Shoutout to @GuptaAnkitV, our batchmates, and the YC community for making this an unforgettable experience 🚀

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