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(1/5) @CKT_Conner, @dill_pkl, @emilyzsh, and I are excited to introduce Shard - a proof-of-concept for an infinitely scalable distributed system composed of consumer hardware for training and running ML models!
Features:
- Data + Pipeline Parallel for handling arbitrarily large models
- Algorithmic load balancing for throughput optimization
- Fault tolerance for unreliable machines
Aksh Garg retweeted
Today, @via_ai_ is coming out of stealth to provide enterprises frontier AI coding at half the cost.
We are a team of Olympiad camp qualifiers (with multiple gold medals), researchers, and repeat founders from Stanford and IIT.
Via is backed by @jeffawilke (ex-CEO Amazon Worldwide Consumer), @manikgupta (ex-Uber CPO), @shaileshrao (ex-Google MD), and other legends from Anthropic, Apple, Snowflake, and Twitter.
@ShrayAlag and I left Stanford CS to build Codegraph, an LLM-optimized compression algorithm. Codegraph put Via at the top of SWE-Bench Verified for several months of 2025, ahead of Anthropic, OpenAI, Cognition, and Cursor (single model, no test-time compute).
Now, we’re bringing this research, alongside our new Umami agent architecture, to market. Via integrates in 10 seconds with any CLI / IDE and runs within your enterprise’s VPC.
On benchmarks, Via and Via US (US-only models) set a new standard of performance:
- On DeepSWE v1.1, Claude Code (Opus 5.5) is 306% the cost of Via US. Via US is equally accurate.
• Devin Fusion is 244% the cost of Via US, Cursor Router is 294%.
- On Terminal Bench 4.0, Claude Code (Opus 5.5) is 150% the cost of Via. Via is more accurate.
• Devin Fusion is 155% the cost of Via, Cursor Router is 134%.
We are in production at a public healthcare company, with trials underway at several of the largest tech companies in Silicon Valley.
We have room for 5 more enterprises before the end of the year. DM me or email [email protected] and we’ll get back to you very soon.
See the comments for how Via would deploy for your team.
Aksh Garg retweeted
any offices in sf have 3 open desks that the @UseLitmus team could rent out for the summer?
we have excellent snack game
Aksh Garg retweeted
Mercor crossed $2B in ARR in June, just 4 months after hitting $1B in ARR.
The civilization-scale effort to collect data is underway.
A Stargate for Data
Labs are on a trajectory towards >$100B/year of data spend by 2030. As we begin the trillion-dollar compute project, we need to think about the equivalent civilizational-scale effort for the other core ingredient: data.
At the foundation of the scaling revolution is a simple empirical law: deep neural networks improve smoothly, near magically, as you scale two things in proportion — (1) the size of the model and (2) the amount of data you train on. And despite the scaling laws being brutally diminishing, we’ve successfully bitten the bullet of logarithmic scaling with exponentially larger clusters and datasets, and received incredible new capabilities in return.
But this exponential scaling is bound to hit some limits. Oddly enough, compute has compounded fairly smoothly without limit, with trillions flowing into hypercluster buildout. Instead, we’re starting to hit the limits of an exponential demand for data. Gone are the days of being purely in the compute-limited regime, where we had effectively infinite internet data but never enough GPUs, we’re now entering a data-limited regime.
Luckily, this limitation is coinciding with staggering improvements in AI capabilities. Incredibly, we seem to have a real line of sight towards automating a majority of knowledge work with the methods we have today. RL + pretraining, and the data for each, will be generally sufficient to achieve most economically valuable tasks, given some minimal algorithmic progress and continued compute scaling.
In a data-limited world, economic progress & scientific acceleration will be directly bottlenecked by our coverage in each domain. We need to see data collection as imperative, deserving the same civilizational ambition we’ve given compute.
The internet as a one-time subsidy
It’s underrated how much all progress in AI owes everything to the blessing of the internet, this one-time civilizational subsidy to deep learning, decades of unintentional accumulation of a perfect dataset: every book, blog post, image, video, paper, discussion, etc. all digitized and freely available. Without the internet, we’d likely see comparably minimal progress in AI today, and in fact, if you notice where systems currently underperform, it’s almost always a domain where web coverage is limited and data is private, expensive, non-digitized, or non-existent.
But we’re running out of it. There are only about 300 trillion tokens of useful public human text, and the internet doesn’t produce nearly enough new high-quality data to match what scaling demands — we’re soon to hit the limits of public data for pretraining. And though the advent of RL bought us reprieve — chain-of-thought RL needed a new form of untapped data, gradable math & coding tasks, also available online — we’re quickly running dry of hard tasks for RL as well.
Why do we need so much data anyways? Humans learn comparably in far less time, needing just one textbook where language models might need the equivalent of hundreds to learn a new topic. It’s possible we discover methods that are massively more data efficient — synthetic data, data efficient architectures, other exotic algorithms — but fundamental progress is slow and highly unpredictable, and the recipe we have just works today.
And, while I’m wary of getting too deep here, even arbitrary data efficiency can’t replace data that just doesn’t exist in the first place. There’s a massive amount of missing information on the web: the dark matter of the internet — tacit knowledge, undocumented processes, etc. — most of which was never published and lives only inside organizations, the physical world, or just in people’s heads. I’ll leave it here and say, for reasons far longer than I can fit in this post [1], it’s best to operate on the assumption that our insatiable desire for data will continue as it has for the last decade.
There will be >$100B/year in data spend by 2030
We’re not screwed yet, of course. Only a fraction of useful data in the world is on the public internet, the rest is stored inside private datasets, corporations, personal archives, universities, governments, and otherwise. Labs can and will continue to license these private datasets, or create them from scratch, like Anthropic’s book scanning project. And we’ll increasingly task human experts to manufacture new high-quality data, with a large fraction of hard RL training tasks already being sourced this way.
But collecting this data, unlike before, will be expensive. As the free internet dries up and demand for data rises, we should see labs investing equally in data as compute, likely spending a significant fraction of their compute budgets on data. As we see trillions spent on compute, we should also expect hundreds of billions spent on data (human data & collection budgets), given their equivalent importance. And, notably, data spend is already tracking this way: total data spend across vendors, not counting internal lab efforts, is already roughly $7 billion per year. It’s quite reasonable we’ll see >10x by 2030.
Data is the moat
Data becoming increasingly private will also majorly shift the competitive landscape. While compute is a commodity — everyone buys the same chips and builds the same clusters — data really isn’t. The big reason why frontier models have felt eerily similar to one another, until now, is they were trained on substantially the same internet (pretraining data variability across labs seems pretty low). As labs diverge onto more exclusive, manually collected corpora, I think models will begin to increasingly diverge.
OpenAI pulling ahead in mathematics and Anthropic in cybersecurity isn’t an accident. I really think laser-focused collection of high-quality midtraining tokens, custom RL tasks, environments, with dedicated research effort, has driven much of the visible progress in the last year. James Betker has an excellent blog about “the ‘it’ in a model is the dataset”: model architecture and compute buy you efficiency and order-of-magnitude performance, but ultimately, models, of any architecture, are such incredible approximators of their dataset that the core meat of a model boils down to just that, nothing else. Data is a major moat.
AGI long, ASI short
As I’ve tweeted before, I’m confident that, despite the narrative, the data labeling industry will continue to fuel great businesses and be an excellent AGI long, ASI short. The argument is just: By the time the AGI labs no longer need data, it’s probably over for everything else too [2]. In this frame, the last companies left should be the data companies, as the last speck of economically relevant data is sucked in. And these companies are already among some of the fastest-growing companies in history: Mercor, founded three years ago, is rumored to be doing $2 billion in revenue with something like a few million expert labelers under contract.
While these businesses are very non-stationary, what type of data is needed shifts constantly, I don’t think that diminishes their value. The long-tail of the economy is long, and the value isn’t diminishing as you extend farther into more obscure information: as models get more capable, the value of the marginal dataset goes up, not down. Automating a full job means covering its full distribution of tasks, tools, edge-cases, and long-horizon loops. There’s some O-ring logic to it: a dataset that buys a 1% bump can justify a previously unjustifiable collection cost when it’s the difference between a system that does 99% of a job and one that does all of it [3].
The competitive dynamics of the data industry are still evolving but as demand for data is increasingly niche, ultra high-quality, expert-generated, I think we’ll see real consolidation. Again, contra-narrative, we’ll probably see true competitive differentiation built on brand, quality control of data (which, from personal experience, can vary massively), as well as in network effects from the talent networks themselves over time. We’ve already seen rapidly shifting data type demand work in favor of incumbents, benefiting those with early knowledge of where the market is headed.
The binding constraint
It’s truly remarkable that we seem to have the recipe — pretraining + RL — to absorb most economically valuable work, despite being far from a lot of what we expected from “AGI”. The same way chess engines revealed we never needed general intelligence to solve chess, as we originally thought, we’ll soon realize that software, mathematics, and the vast majority of the economy (including physical, just running ~3 years behind!) are the same. If recursive self-improvement or some other algorithmic breakthrough arrives, that’s wonderful, but we really don’t have to wait for it. The binding constraint between here and an automated economy isn’t that, it’s data coverage: every app, workflow, edge case, process, etc. sitting in private stores or someone’s head.
Ultimately, while we make tremendous strides in more efficient model architectures, and clusters like Stargate equip us with zettaflop-scale compute, we really aren’t making rapid progress collecting the data we lack.
We’ll soon live in a world where we have the methods & compute to accelerate scientific progress or economic growth, but not the data. And we’re already there today: frontier models would surely be as good at accounting/many medical tasks/legal advice as they are at software engineering if we only had the same pretraining & RL coverage as we did for code.
I really want to drill this in: The speed at which we automate the economy is going to be directly rate-limited by our ability to collect data about it.
Worth noting that under this assumption, with data as defensible and directly proportional to economic & scientific progress, data should also be considered a national strategic asset like compute. Imagine what we’d do in a world where we had a Manhattan Project-effort for AI and needed to mobilize data collection as a limiting factor. We should be concerned about China, with greater state capacity and authoritarian economic control, being capable of mobilizing data collection at national scale, potentially compounding their economy and scientific output faster than us down the line.
A Stargate for data
I’m leaving my complete ideas for a future post, as this one is already far too long, so I’d really like to pose the question here. Stargate exists because we organized trillions of dollars, international strategy, gigawatts around compute as a fundamental ingredient. What would equivalent ambition look like for data?
Obviously, scaling data collection, a heterogeneous mass of information across the economy, isn’t going to be as clear as scaling compute, as a homogenous infrastructural effort. A core division will be first, coverage — all uncaptured knowledge sitting across the economy/science/physical world and all that simply isn’t recorded — and, secondly, sheer volume in the domains we already train on: more hard math tasks, more high-quality web text, way more coding data, more legal drafts, etc.
I have a post coming soon which breaks down my proposals. There’s a lot of room for creativity. Quickly, we’ll probably want to start with a deep census of what we have and what we’re missing, predict what the 2030 model will still be bad at and work backward to what we should be collecting today. You can probably license a large amount, leveraging high lab valuations to buy datasets or companies altogether. There’s an adversarial nature to a lot of this collection with firms, so there’s lots of engineering to do this correctly. We should go convince important companies to turn off deletion policies, even if we’re not buying from them yet. Data flywheels in consumer products will be massive. Confidential training, government legislation for grant-funded research, running companies at a loss for their data, etc.
We’re headed towards hundreds of billions in expenditure, national prioritization, and major data limitation on the horizon. We have a great opportunity to think creatively about what a megaproject for data would look like: How do we, deliberately this time, construct the next internet’s worth of data?
Footnotes:
[1]: I’ll probably soon publish my much longer post explaining my position on data efficiency and why the value of this data is still pretty high in most worlds regardless of new algorithms.
[2]: The “AGI freeroll” bet: heads you win, tails ASI flips the world upside down anyways.
[3]: We already see a glint of validation of this point, given the data market is strongly tilting towards ultra-high-quality agentic data, rather than unskilled labeling — niche expert workflows, live environments, and evaluations requiring increasingly obscure talent & knowledge — yet shows increasing, not decreasing, revenues.
Aksh Garg retweeted
We’re friends because of tech recruiting.
Traveling to conferences, crashing out after superdays, and celebrating offers—long before we were co-founders, we survived recruiting together.
But quickly after, we realized how little the interview process had actually prepared us for the job.
The engineers around us who stood out weren’t the ones who had spent months optimizing for interviews. They were the builders who could collaborate, communicate, and adapt in the face of uncertainty.
The hiring process didn’t measure any of that.
We built @UseLitmus (YC S26) to let the work speak for itself, so you can hire the ones who last. It’s live today at litmushiring.com!
Launch video here: teapawt.org/ShaiviRau/status/20600…
Aksh Garg retweeted
Hiring sucks ... well it used to.
@UseLitmus is now live, backed by @ycombinator.
Aksh Garg retweeted
We’re launching @JudgmentLabs today and announcing $32M in funding.
As AI agents take on more of the work that creates economic value, they generate massive amounts of production data: the clearest record of how they behave with users, software, and the real world.
Judgment builds infrastructure for improving AI agents from production data.
Aksh Garg retweeted
if you're looking for a long read for the weekend
↓↓↓
the ultimate guide to RL environments by @adithya_s_k
huggingface.co/spaces/Adithy…
Aksh Garg retweeted
while I have yall here - we’re hiring engs to work alongside us during the batch! take the first round on Litmus to get added to our pipeline: litmushiring.com/a/0e15d9575…
if you’re currently hiring, take the assessment to see what good interviewing looks like.
We applied to @ycombinator 13 hours late from our Columbia dorms after four consecutive all nighters.
A little over a month later, we flew out to sf for our interview with @snowmaker and @gustaf.
Now, we're <1 month away from moving to sf to start the batch in June!
S26 applications are due tonight. Apply! Late if you have to. It's not always the worst thing.
ycombinator.com/apply
(Attached is our actual submission vid, filmed at 5am and fuelled by a lot of dining hall coffee)
Aksh Garg retweeted
We applied to @ycombinator 13 hours late from our Columbia dorms after four consecutive all nighters.
A little over a month later, we flew out to sf for our interview with @snowmaker and @gustaf.
Now, we're <1 month away from moving to sf to start the batch in June!
S26 applications are due tonight. Apply! Late if you have to. It's not always the worst thing.
ycombinator.com/apply
(Attached is our actual submission vid, filmed at 5am and fuelled by a lot of dining hall coffee)
there's so much to software beyond just code - excited to see us taking more steps towards automating the full cycle
shoutout @AbhiKottamasu and @adarsh_exe
can't wait for v2
Traditional coding benchmarks do not reflect how software is actually built and maintained.
That's why we built a new benchmark, APEX-SWE, in partnership with @cognition. It measures whether AI models can perform complex, real-world software engineering work to ship systems that work and debug them when they don't.
@OpenAI GPT 5.3 Codex (High) tops the leaderboard at 41.5% on Pass@1.
Aksh Garg retweeted
Traditional coding benchmarks do not reflect how software is actually built and maintained.
That's why we built a new benchmark, APEX-SWE, in partnership with @cognition. It measures whether AI models can perform complex, real-world software engineering work to ship systems that work and debug them when they don't.
@OpenAI GPT 5.3 Codex (High) tops the leaderboard at 41.5% on Pass@1.
started 2026 resolving to read more papers…
…and then spent Sunday building a research agent that ranks top AI papers + explains why they matter in 10 minutes
first one’s live: akshgarg07.substack.com/p/da…
laziness remains an engineer’s best friend
Aksh Garg retweeted
Thrilled to share that I’ve joined @reflection_ai! We’re building superintelligent autonomous systems by co-designing research and product. Today, we’re launching Asimov.
As AI benchmarks saturate, evaluation will increasingly live inside real-world products that are reward-bearing RL environments in disguise. Reach out if you’re interested in working at the intersection of RL, LLMs, and agents alongside some of the scientists and engineers behind AlphaGo, PaLM, GPT-4, Gemini!
Engineers spend 70% of their time understanding code, not writing it.
That’s why we built Asimov at @reflection_ai.
The best-in-class code research agent, built for teams and organizations.
Aksh Garg retweeted
Super excited to announce Weaver!
Check it out to see the strongest way to verify LM Generations while maintaining compute efficiency!
How can we close the generation-verification gap when LLMs produce correct answers but fail to select them?
🧵 Introducing Weaver: a framework that combines multiple weak verifiers (reward models + LM judges) to achieve o3-mini-level accuracy with much cheaper non-reasoning models like Llama 3.3 70B Instruct!
🧵(1 / N)
Aksh Garg retweeted
Crosby is rewriting an entire industry. We are a law firm powered by modern software and AI, and we have barely scratched the surface.
On a personal note, I am pumped to be joining the @CrosbyLegal team with @Ryanjdaniels and @jsarihan!
Check us out: crosby.ai
Today we’re introducing Crosby, a hybrid AI law firm that helps rapidly growing businesses execute faster.
Contracts are connection points. They allow companies to transact with one another and create economic growth. But while every aspect of business has sped up, the way we negotiate contracts hasn’t changed in 50 years.
Crosby is building the API for human agreement. We combine the speed and intelligence of AI with the safety of lawyers-in-the-loop to review contracts in under an hour.
Since quietly launching in January, we’ve reviewed over 1,000 MSAs, DPAs and NDAs for some of the fastest growing companies in history, including Cursor, Clay and UnifyGTM. Speed to execution is our north star, and today our median review time is 58 minutes. GTM teams call Crosby a secret weapon to close deals 80% faster. We’re just getting started.
Today, we’re also excited to share that we’ve raised $5.8m from Sequoia Capital and Bain Capital Ventures, as well as the founders of Ramp, Instacart, Flatiron Health, and others.
Crosby is a small, talent-dense team, combining lawyers from Harvard, Stanford, and Columbia Law with engineers from Ramp, Vanta, Meta, and Google. Every engineer on our team today is a former founder. We work in person in New York City.
If our mission resonates with you, we are looking for technologists, legal experts, and former founders to join us.
For high-growth companies looking to execute faster, we’ve opened up Early Access. Sign up on our website and we’ll be in touch.
Aksh Garg retweeted
New blog post with @ArmaanTip!
Following Emergent Misalignment, we show that finetuning even a single layer via LoRA on insecure code can induce toxic outputs in Qwen2.5-Coder-32B-Instruct, and that you can extract steering vectors to make the base model similarly misaligned 🧵
Aksh Garg retweeted
Willow (@WillowVoiceAI) is the future of voice-first computing.
Thousands of people have replaced their keyboards with Willow to get emails, docs, and AI prompting workflows done 4x faster.
Congrats on the launch, @_allanguo and @LiuLawrence45!
Aksh Garg retweeted
introducing chipmunk—a training-free algorithm making ai video generation 3.7x & image gen 1.6x faster! ⚡️
our kernels for column-sparse attention are 9.3x faster than FlashAttention-3 and column-sparse GEMM is 2.5x faster vs. cuBLAS
a thread on the GPU kernel optimizations 🧵
Our latest joint work w/ SandyResearch @ UCSD: training-free acceleration of Diffusion Transformers w/ dynamic sparsity, led by @austinsilveria @SohamGovande!
⚡️ 3.7x faster video and 1.6x faster image generation while preserving quality!
🧵 Open-source code & CUDA kernels!
Aksh Garg retweeted
THE MERCOR GRADUATE FELLOWSHIP
Today, we're announcing the Mercor Graduate Fellowship, which awards $50,000 to support graduate students who are on track to do exceptional work, even if they haven’t done it yet. Every transformative idea starts with someone on their way—before the breakthroughs or the recognition.
Mercor works with thousands of PhDs and postdocs across fields—from math to philosophy. We see firsthand that academia is full of people whose talents are wildly under-funded and under-valued. We’d like to change that—beginning with this fellowship.
MERITOCRACY
We want to identify exceptional talent regardless of academic pedigree, institutional affiliation, or personal connections. Traditional fellowship programs rely heavily on recommendation letters, publication records, and prestigious affiliations—metrics that frequently favor those with established networks and privileged backgrounds.
All we want to evaluate is to understand (i) what problems you are trying to solve and (ii) how you want to solve them. This allows us to discover brilliant talent who might be overlooked by conventional selection processes—whether you're from a top-ranked university or a less-known institution, whether you have impressive publications or are still developing your research.
The Mercor Graduate Fellowship is designed to support talented individuals who demonstrate exceptional promise but may lack resources or recognition. We want to increase access to opportunity and funding in academia.
THE FELLOWSHIP
- $50,000, no strings attached.
- Open to current PhD students and postdocs in STEM fields.
- To apply, just upload a resume and take a 10-minute virtual interview with Mercor’s AI
- Apply by May 15th (but we review applications as they come in)
THE NETWORK
We’ll host a retreat for selected fellows to connect with other people building cool things and thinking deep thoughts.
THE BONUS
Searching for talent is hard—refer someone who wins, and we’ll pay you $10,000.



























