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Autoresearch by Karpathy

Hacker Approved

The most recommended of 6 research agents

Recommended as a free, simple way to let an agent run experiments against a clear metric; critics say it mostly tunes parameters and classical optimization often does as well.

Recommended as a free, simple way to let an agent run experiments against a clear metric; critics say it mostly tunes parameters and classical optimization often does as well.

52 people gave an opinion

recommend it
37
criticize it
15
approval share
71%
Each figure is one person. RecommendsCriticizes

Recommended in 6 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it carries the badge

  • 37 people recommend itNeeds 10 or more, met.
  • 2.5 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 6 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Works well with a clear success metric

    “Shows the power of Autoresearch when you're actually able to build a strict set of tests that clearly delineate successful outcomes.”

    Comment from 26 Jun 2026 in “I rewrote PostHog's SQL parser, 70x faster, while barely looking at the code”

    “the ability to say: "optimize this benchmark and commit only if you pass these tests" is nice”

    Comment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “extremely powerful when applied to problems that generalize well to it”

    Comment from 29 Jun 2026 in “Guy beats one of the best published quantum circuits for breaking ECDSA with AI”
  • Speeds up code and test suites

    “autoresearch managed to improve the harness performance on my 'time-to-Realworld' benchmark”

    Comment from 28 Mar 2026 in “HyperAgents”

    “I’ve had awesome results using Autoresearch loops on other things like SQL performance.”

    Comment from 13 Jul 2026 in “Show HN: DOM-docx – HTML to native, editable Word docs (MIT)”

    “It's nice being able to just run /autoresearch and speed up your test suites”

    Comment from 20 May 2026 in “I’ve joined Anthropic”
  • Automates parameter sweeps and experiments

    “I can now very lazily set up large parameter sweeps and visualization scripts to really probe things.”

    Comment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “This automated run-and-discover process is far beyond what's possible with hyperparam search.”

    Comment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”
  • Cheap, accessible way to experiment

    “autoresearch feels more accessible that the listed solutions.”

    Comment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “Perfect for experimenting with AI research on the cheap!”

    Comment from 15 Mar 2026 in “I made Karpathy's Autoresearch work on CPU”

What people warn about

Each mark is one comment

  • Mostly hyperparameter tuning, not novel ideas

    “But what it ends up doing is tuning parameters manually, only one / a few at a time, extremely inefficient and unlikely to be optimal.”

    Comment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “basically everything is just hyperparameter tuning. Which is nice, but likely not worth the $$$ spent on the tokens”

    Comment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “all it does is just set different values for different parameters of continuous values”

    Comment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”
  • Classical optimization does as well or better

    “the vast majority of the changes that auto research actually made would have been found much faster with BO”

    Comment from 20 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

    “TPE crushes Karpathy’s autoresearch and it is neck and neck with the method in this paper”

    Comment from 9 Jun 2026 in “Can LLMs Beat Classical Hyperparameter Optimization Algorithms?”

    “one experiment showing that classical black-box optimization did better than Autoresearch”

    Comment from 23 Mar 2026 in “'The Karpathy Loop': 700 experiments, 2 days”
  • Random changes and unreadable code

    “they tend to randomly change things, which is a poor approach”

    Comment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

    “Half the tests aren't passing and the code is a lot less readable, but the core idea is cool”

    Comment from 14 Mar 2026 in “I ran /autoresearch on liquid codebase. 53% faster combined parse+render time”
  • Not groundbreaking; mostly hype

    “nothing particularly groundbreaking, but has helped devs expand their understanding of the utility that these models can provide”

    Comment from 19 May 2026 in “I’ve joined Anthropic”

    “Karpathy writes a really basic loop and it's now a kind of AI miracle prompting tons of grifters, copy-cats, weird hype.”

    Comment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

    “Neither of them were even original, people have been playing around with those ideas for well over a year.”

    Comment from 19 May 2026 in “I’ve joined Anthropic”

Other research agents people recommend

The four most recommended other research agents, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Autoresearch by Karpathy compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Autoresearch by KarpathyThis page371571%6—Approved
Gemini Deep Research271959%9——
OpenAI Deep Research131546%8——
Kagi Research90100%7——
LangAlpha8280%1——
See all 6 research agents, ranked

What people said

40 of the 57 comments that mention it, newest first. Each links to the original comment.

“I think karpathy/autoresearch is a quintessential starting point.”

RecommendsComment from 22 Aug 2026 in “There's no reason for software to be slow anymore”

“Closest thing to "Make this app fast!" we have now.”

RecommendsComment from 22 Aug 2026 in “There's no reason for software to be slow anymore”

“Also works wonderful for generating AI scripts, goal being increasing the elo rating after a tournament run.”

RecommendsComment from 13 Jul 2026 in “Show HN: DOM-docx – HTML to native, editable Word docs (MIT)”

“I’ve had awesome results using Autoresearch loops on other things like SQL performance.”

RecommendsComment from 13 Jul 2026 in “Show HN: DOM-docx – HTML to native, editable Word docs (MIT)”

“extremely powerful when applied to problems that generalize well to it”

RecommendsComment from 29 Jun 2026 in “Guy beats one of the best published quantum circuits for breaking ECDSA with AI”

“Shows the power of Autoresearch when you're actually able to build a strict set of tests that clearly delineate successful outcomes.”

RecommendsComment from 26 Jun 2026 in “I rewrote PostHog's SQL parser, 70x faster, while barely looking at the code”

“TPE crushes Karpathy’s autoresearch and it is neck and neck with the method in this paper”

CriticizesComment from 9 Jun 2026 in “Can LLMs Beat Classical Hyperparameter Optimization Algorithms?”

“It's nice being able to just run /autoresearch and speed up your test suites”

RecommendsComment from 20 May 2026 in “I’ve joined Anthropic”

“it was just tuning parameters mostly, not really trying different novel approaches”

CriticizesComment from 19 May 2026 in “I’ve joined Anthropic”

“Neither of them were even original, people have been playing around with those ideas for well over a year.”

CriticizesComment from 19 May 2026 in “I’ve joined Anthropic”

“I think you are underestimating both the value of both projects”

RecommendsComment from 19 May 2026 in “I’ve joined Anthropic”

“nothing particularly groundbreaking, but has helped devs expand their understanding of the utility that these models can provide”

MixedComment from 19 May 2026 in “I’ve joined Anthropic”

“Coding agents that read papers before writing code find optimizations that code-only agents miss.”

RecommendsComment from 9 Apr 2026 in “Research-Driven Agents: What Happens When Your Agent Reads Before It Codes”

“was amazed with what the tokens gave back to me after many rounds of experiments”

RecommendsComment from 1 Apr 2026 in “The Revenge of the Data Scientist”

“autoresearch managed to improve the harness performance on my 'time-to-Realworld' benchmark”

RecommendsComment from 28 Mar 2026 in “HyperAgents”

“all it does is just set different values for different parameters of continuous values”

CriticizesComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“But what it ends up doing is tuning parameters manually, only one / a few at a time, extremely inefficient and unlikely to be optimal.”

CriticizesComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“I can now very lazily set up large parameter sweeps and visualization scripts to really probe things.”

MixedComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“The structure is dead simple so you just have to switch the goal metric.”

RecommendsComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“The scratchpad.md for agent working memory is a nice touch.”

RecommendsComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“autoresearch feels more accessible that the listed solutions.”

RecommendsComment from 24 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“To me, I guess the main value of Autoresearch would be to test different kind of architectures”

MixedComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“pretty cool experiment, i thought about someone maybe doing this and am happy you did it in this way”

RecommendsComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“they tend to randomly change things, which is a poor approach”

MixedComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“Still useful, but I think the real bottleneck is how good your eval metric is.”

MixedComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“one experiment showing that classical black-box optimization did better than Autoresearch”

CriticizesComment from 23 Mar 2026 in “'The Karpathy Loop': 700 experiments, 2 days”

“the ability to say: "optimize this benchmark and commit only if you pass these tests" is nice”

RecommendsComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“basically everything is just hyperparameter tuning. Which is nice, but likely not worth the $$$ spent on the tokens”

CriticizesComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“It found bugs (that he didn't know about) and it did optimization (that he hadn't done).”

RecommendsComment from 23 Mar 2026 in “I tried Karpathy's Autoresearch on an old research project”

“the vast majority of the changes that auto research actually made would have been found much faster with BO”

MixedComment from 20 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

“This automated run-and-discover process is far beyond what's possible with hyperparam search.”

RecommendsComment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

“some of which actually helped including the smear gate and the backout skip connection”

RecommendsComment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

“Karpathy writes a really basic loop and it's now a kind of AI miracle prompting tons of grifters, copy-cats, weird hype.”

CriticizesComment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

“the LLM explores serially learning along the way, and can tool use and change code arbitrarily”

RecommendsComment from 19 Mar 2026 in “Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster”

“Autoresearch is awesome for stuff that has really clear loss functions”

RecommendsComment from 16 Mar 2026 in “Show HN: Goal.md, a goal-specification file for autonomous coding agents”

“Perfect for experimenting with AI research on the cheap!”

RecommendsComment from 15 Mar 2026 in “I made Karpathy's Autoresearch work on CPU”

“Half the tests aren't passing and the code is a lot less readable, but the core idea is cool”

MixedComment from 14 Mar 2026 in “I ran /autoresearch on liquid codebase. 53% faster combined parse+render time”

“autoresearch may not be groundbreaking, but it can do the job”

MixedComment from 12 Mar 2026 in “Yann LeCun's AI startup raises $1B in Europe's largest ever seed round”

“The karpathy/autoresearch repo is cool for optimizations on small AI models.”

RecommendsComment from 12 Mar 2026 in “Autoresearch anything – set up your own autonomous research loop”

“the LLM feels unwilling to creatively pursue a research direction or something like that”

MixedComment from 8 Mar 2026 in “Autoresearch: Agents researching on single-GPU nanochat training automatically”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.