Autoresearch by Karpathy
Hacker ApprovedThe 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%
Recommended in 6 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: not recommended
- October 2026: not recommended
- 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” - Comment from 16 Mar 2026 in “Show HN: Goal.md, a goal-specification file for autonomous coding agents”
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” - Comment from 22 Aug 2026 in “There's no reason for software to be slow anymore”
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” - Comment from 19 May 2026 in “I’ve joined Anthropic”
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” - Comment from 12 Mar 2026 in “Yann LeCun's AI startup raises $1B in Europe's largest ever seed round”
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.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Autoresearch by KarpathyThis page | 37 | 15 | 71% | 6 | — | Approved |
| Gemini Deep Research | 27 | 19 | 59% | 9 | — | — |
| OpenAI Deep Research | 13 | 15 | 46% | 8 | — | — |
| Kagi Research | 9 | 0 | 100% | 7 | — | — |
| LangAlpha | 8 | 2 | 80% | 1 | — | — |
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.”
“Closest thing to "Make this app fast!" we have now.”
“Also works wonderful for generating AI scripts, goal being increasing the elo rating after a tournament run.”
“I’ve had awesome results using Autoresearch loops on other things like SQL performance.”
“extremely powerful when applied to problems that generalize well to it”
“Shows the power of Autoresearch when you're actually able to build a strict set of tests that clearly delineate successful outcomes.”
“TPE crushes Karpathy’s autoresearch and it is neck and neck with the method in this paper”
“It's nice being able to just run /autoresearch and speed up your test suites”
“it was just tuning parameters mostly, not really trying different novel approaches”
“Neither of them were even original, people have been playing around with those ideas for well over a year.”
“I think you are underestimating both the value of both projects”
“nothing particularly groundbreaking, but has helped devs expand their understanding of the utility that these models can provide”
“Coding agents that read papers before writing code find optimizations that code-only agents miss.”
“was amazed with what the tokens gave back to me after many rounds of experiments”
“autoresearch managed to improve the harness performance on my 'time-to-Realworld' benchmark”
“all it does is just set different values for different parameters of continuous values”
“But what it ends up doing is tuning parameters manually, only one / a few at a time, extremely inefficient and unlikely to be optimal.”
“I can now very lazily set up large parameter sweeps and visualization scripts to really probe things.”
“The structure is dead simple so you just have to switch the goal metric.”
“The scratchpad.md for agent working memory is a nice touch.”
“autoresearch feels more accessible that the listed solutions.”
“To me, I guess the main value of Autoresearch would be to test different kind of architectures”
“pretty cool experiment, i thought about someone maybe doing this and am happy you did it in this way”
“they tend to randomly change things, which is a poor approach”
“Still useful, but I think the real bottleneck is how good your eval metric is.”
“one experiment showing that classical black-box optimization did better than Autoresearch”
“the ability to say: "optimize this benchmark and commit only if you pass these tests" is nice”
“basically everything is just hyperparameter tuning. Which is nice, but likely not worth the $$$ spent on the tokens”
“It found bugs (that he didn't know about) and it did optimization (that he hadn't done).”
“the vast majority of the changes that auto research actually made would have been found much faster with BO”
“This automated run-and-discover process is far beyond what's possible with hyperparam search.”
“some of which actually helped including the smear gate and the backout skip connection”
“Karpathy writes a really basic loop and it's now a kind of AI miracle prompting tons of grifters, copy-cats, weird hype.”
“the LLM explores serially learning along the way, and can tool use and change code arbitrarily”
“Autoresearch is awesome for stuff that has really clear loss functions”
“Perfect for experimenting with AI research on the cheap!”
“Half the tests aren't passing and the code is a lot less readable, but the core idea is cool”
“autoresearch may not be groundbreaking, but it can do the job”
“The karpathy/autoresearch repo is cool for optimizations on small AI models.”
“the LLM feels unwilling to creatively pursue a research direction or something like that”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.