CEO @fastcodeai | Research-grade AI for enterprises | Dad
Bangalore, Karnataka, India
Joined March 2012
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PhD from Max Planck. Published with @ylecun. Built interior sensing for Apple's self-driving car. Sold my startup to Mercedes.
Now I run @FastCodeAI from #Bangalore - we're the R&D team that @MercedesBenz , @BoschGlobal , @VWGroup , and @aramco call when they need AI breakthroughs, not implementations.
We ship. You own the IP.
@FastCodeAI has one first-author paper at @NeurIPSConf 2026 (CausalDriveBench), the same as IIT Kanpur, IIT Roorkee and Microsoft Research India.
We're one of four companies in India with a first-author paper at NeurIPS 2026, alongside @lossfunk , @MSFTResearch India and @Sony_Research India.
If only I knew who I wanna be 😅
If you blink, you get left behind.
I did say we'd be releasing our models periodically...introducing Gemini 4 Carbon, our next frontier model.
Following Argon's release just two weeks ago, Carbon shows the pace at which we’re pushing the frontier, it ranks #1 on the recently updated v5.0 of @ArtificialAnlys Intelligence Index at 59. It also leads across key cybersecurity evaluations scoring 88.2% on SEC-bench Pro for finding vulnerabilities, 54.8% on ExploitGym for exploitation, and 71.0% on CWE-bench for patching.
We’re seeing significant improvements in long-horizon tasks even compared to Argon, and we’ve strengthened frontier safeguards.
As we did with Argon, we’re going to roll it out gradually + responsibly. Some trusted cyber defenders will get access starting this week. We'll be expanding it to more partners through our Fairwind Program, ahead of wider availability soon, so hang tight!
Our company is called @FastCodeAI. Despite the name, we have spent a full year not answering one question.
Last year, @Hki_Partners visited our Bengaluru office with a pitch: open an office in Helsinki, hire there, and run our Northern Europe operations from there.
We said what every founder says. "Let us think about it."
Yesterday, they came back. Same pitch. Same patience.
We still don't have an answer.
Our excuse: an office is only as good as the first people in it, and we haven't met them yet.
So we're starting with the people. At NeurIPS in Sydney, we want to meet researchers from Finnish labs. If you have a paper there, message me.
And Helsinki Partners, when you come back next year, we'll have an answer.
Probably.
Arjun Jain | Fast Code AI retweeted
Sydney Sweeney reveals in an interview that she's investing heavily in digital twins for industrial plants.
"Everyone keeps asking when we'll have a photorealistic 3D model of the factory. I just want to know which valves I have to close before taking a pump offline."
𝗜 𝗦𝗽𝗮𝗺𝗺𝗲𝗱 𝟭,𝟴𝟬𝟬 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗼𝗿𝘀 𝗟𝗶𝗸𝗲 𝗮 𝗡𝗶𝗴𝗲𝗿𝗶𝗮𝗻 𝗣𝗿𝗶𝗻𝗰𝗲. 𝗢𝗻𝗲 𝗥𝗲𝗽𝗹𝗶𝗲𝗱.
2007. I could do my Yahoo! job at 20% capacity, and when you're not giving your 100%, something in you withers.
𝗧𝗵𝗮𝘁'𝘀 𝘄𝗵𝗲𝗻 𝗜 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝗲𝗱 𝘄𝗵𝗮𝘁 𝗮𝗴𝗲𝗻𝗰𝘆 𝗿𝗲𝗮𝗹𝗹𝘆 𝗺𝗲𝗮𝗻𝘀: finding the simple, non-default solution when you're pushed against the wall.
At 2 AM in my #Bangalore apartment, I wrote a PHP script. Scraped email addresses from university websites across Europe. Sent emails to 1,800 professors.
My friends thought I'd lost it. "Apply properly," they said. But proper channels weren't built for RV passouts dreaming beyond their station.
Prof. Alberto Del Bimbo and Prof. Marco Bertini from Florence took a chance. €1,400/month at MICC.
My mother panicked - I was supporting my family. My father though? IIT KGP 1969 batch dropout who chose the mountains and music over engineering - he simply said: "𝘞𝘦 𝘸𝘪𝘭𝘭 𝘮𝘢𝘯𝘢𝘨𝘦. 𝘠𝘰𝘶 𝘧𝘭𝘺."
#Florence broke me financially. Vegetarian in Italy, no kitchen, surviving on fumes. One desperate night, I bought a chicken burger thinking meat would kill hunger longer. Sat there trying to force one bite. Couldn't. My body rejected it completely. Slept hungry that night, having blown my food money on something I couldn't swallow.
But I stayed. MPII followed. Then NYU. I was there when deep learning took off. Papers, patents, Apple, Mercedes acquiring my IP, teaching at IIT & IISc.
𝗡𝗼𝘁 𝗯𝗲𝗰𝗮𝘂𝘀𝗲 𝗜 𝘄𝗮𝘀 𝗯𝗿𝗶𝗹𝗹𝗶𝗮𝗻𝘁. 𝗕𝗲𝗰𝗮𝘂𝘀𝗲 𝗜 𝗿𝗲𝗳𝘂𝘀𝗲𝗱 𝘁𝗵𝗲 𝗹𝗶𝗳𝗲 𝘁𝗵𝗲𝘆 𝗵𝗮𝗻𝗱𝗲𝗱 𝗺𝗲.
"𝘙𝘰𝘭𝘭 𝘶𝘱 𝘺𝘰𝘶𝘳 𝘴𝘭𝘦𝘦𝘷𝘦𝘴 𝘢𝘯𝘥 𝘸𝘰𝘳𝘬 𝘢𝘴 𝘢 𝘣𝘰𝘶𝘯𝘤𝘦𝘳 𝘪𝘯 𝘢 𝐬𝐞𝐱 𝐜𝐥𝐮𝐛 𝘰𝘳 𝘢 𝘸𝘢𝘳𝘥𝘦𝘯 𝘪𝘯 𝘢 𝐥𝐮𝐧𝐚𝐭𝐢𝐜 𝐚𝐬𝐲𝐥𝐮𝐦. 𝘋𝘳𝘪𝘷𝘦 𝘢 𝘵𝘢𝘹𝘪 𝘧𝘰𝘳 𝘴𝘪𝘹 𝘮𝘰𝘯𝘵𝘩𝘴 𝘢𝘯𝘥 𝘺𝘰𝘶'𝘭𝘭 𝘩𝘢𝘷𝘦 𝘦𝘯𝘰𝘶𝘨𝘩 𝘮𝘰𝘯𝘦𝘺 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘢 𝘧𝘪𝘭𝘮."
Werner Herzog says people with high agency find solutions so simple, others think they're idiots. Like mass-emailing 1,800 professors. Crude? Yes. Effective? Also yes.
𝗛𝗲𝗿𝗲'𝘀 𝘄𝗵𝗮𝘁 𝗻𝗼𝗯𝗼𝗱𝘆 𝘁𝗲𝗹𝗹𝘀 𝘆𝗼𝘂 𝗮𝗯𝗼𝘂𝘁 𝗮𝗴𝗲𝗻𝗰𝘆: it's not heroic. It's desperate PHP scripts at midnight. It's €300 sent home from €1,400. It's grinding while everyone thinks you've lost it.
Today, @FastCodeAI is my latest rebellion against the default path. Still believing every wall has a door.
Don't let anyone tell you to 𝙥𝙖𝙨𝙨𝙞𝙫𝙚𝙡𝙮 𝙖𝙘𝙘𝙚𝙥𝙩 𝙬𝙝𝙖𝙩 𝙞𝙨 𝙝𝙖𝙣𝙙𝙚𝙙 𝙩𝙤 𝙮𝙤𝙪.
That's what kills dreams. Not rejection. Not failure. Acceptance.
𝗦𝘂𝗳𝗳𝗲𝗿𝗶𝗻𝗴 𝗶𝘀 𝗶𝗻𝗲𝘃𝗶𝘁𝗮𝗯𝗹𝗲. 𝗬𝗼𝘂 𝗷𝘂𝘀𝘁 𝗴𝗲𝘁 𝘁𝗼 𝗰𝗵𝗼𝗼𝘀𝗲 𝘄𝗵𝗮𝘁 𝗸𝗶𝗻𝗱.
You can suffer doing work at 20% capacity, or you can suffer sleeping hungry in Florence.
𝗬𝗼𝘂 𝗰𝗵𝗼𝗼𝘀𝗲.
That email you're afraid to send? Send 1,800 of them.
I'm looking for a younger me.
The current me has a PhD from Max Planck. Taught at IIT Bombay. Built tech at Apple and Weta Digital. Published papers with Yann LeCun.
But my most important lessons? They happen between meetings. In Uber rides. Over coffee with founders.
And they vanish into thin air. I forget. Balls get dropped.
That changes now. I'm hiring my shadow. My right hand. Someone who'll be in every room, every call, every decision.
You'll manage my calendar and keep me sane. It's a Chief of Staff role.
Think of it as a real-world MBA. You'll see how we close deals, handle crises, build partnerships. You'll learn why some meetings are worth ₹2Cr and others aren't worth 2 minutes.
My last Founder's Office hire Rithika Gopikrishna is now a Chevening scholar.
₹6-12 LPA plus an education you can't buy. In-office 5 days, Bengaluru.
I don't care about your degree. Hell, I don't care if you finished college. I care if you're hungry.
That's the younger me I'm looking for.
I asked AI to set up a LinkedIn ad for Restart using computer use, our AI course for people restarting their careers.
It took 86 browser actions.
It tested audiences.
It built 2 versions of the ad and priced both.
It found a LinkedIn tag already on our site, so our developer had almost nothing to do.
It wrote the lead form.
Then it asked me 5 questions. My replies:
"you decide"
"yes it is"
a link
"no, it's fine"
"13th november"
86 actions for it. 5 lines for me.
This is what AI is for. The boring, tedious work.
Not the thinking. Not the creativity.
Who the course is for. What it promises. Whether it should exist at all.
That was ours before AI opened a single tab.
Nothing goes live until I say go.
Keep the thinking. Hand it the clicks.
So cool! AI is sniffing out age old bugs that we were living with!
Arjun Jain | Fast Code AI retweeted
Ben Horowitz's message to early-stage founders on betting on yourself, the doubts that do the most damage, and why fear means you're doing it right:
"Your job is to make your bet pay off. You believed in yourself enough to do it. There are gonna be many times when you question that bet and you question that belief, but that gets you nothing."
"The doubts are gonna be there. Ignore the doubts. The worst doubts aren't the ones people put on you. It's the ones that you put on yourself. Every entrepreneur has them."
"I spent a lot of time with Mark Zuckerberg when he was 22 years old and he had a tremendous doubt about whether he was gonna make it."
"It's not what you feel. It's what you do. You're gonna feel scared. If your guts aren't boiling, you're not even trying at this thing."
@bhorowitz w/ @speedrun GP @andrewchen
Move 37.
AlphaGo's intuition put the odds a top human would play it at 1 in 10,000.
AlphaGo played it anyway. Its search looked further ahead than its intuition.
Thore Graepel helped build AlphaGo. This month he wrote that today's LLMs has the intuition but not the search. And that its chain of thought is often a story told after the fact.
We measured t
Some driving AIs now explain themselves. "I slowed down because a cyclist was merging."
In CausalDriveBench, our NeurIPS 2026 paper, we tested whether the explanation is why the car moves.
In one test, we removed the reasoning. The trajectory didn't change.
We swapped in reasoning that contradicted it. The trajectory didn't change.
13 models. 7,285 questions about cause and effect.
How well a model answered the why-questions said nothing about how well it drove.
4 of the 13 scored below random chance.
The reasoning is ornamental.
In a car, that matters. When something goes wrong, the explanation is the first thing an engineer reads. If it isn't why the car moved, it's just a story.
Graepel is right. Reasoning has to be load-bearing. In the models we tested, it isn't. Yet.
Vision and sponsorsip by Aish Dubey and joint work with his team at Renesas and also IIT Delhi.
"Whatever we think life is, that's what life becomes."
Tony Robbins, yesterday.
We don't see the world as is. We see it through a lens.
We label before we look.
Good or bad. Friend or threat. Win or loss.
My lens: everything is a fight.
A minor bug looks like the sky is falling.
A family board game looks like a qualifying lap.
Same bug. Same game. The lens did that.
Jains have a name for the lens: mohanīya karma. Perception-deluding karma.
It puts a color on everything you see.
Tony says change the color, and life changes.
Jains go one step further: take the lens off.
I'm still working on a better color.
