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Anthropic's original take home assignment open sourced

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Re: Anthropic's original take home assignment open sourced

#111
post #12

It's pretty interesting how close this assignment looks to demoscene [1] golf [2]. [1] https://en.wikipedia.org/wiki/Demoscene [2] https://en.wikipedia.org/wiki/Code_golf It even uses Chrome tracing tools for profiling, which is pretty cool: https://github.com/anthropics/original_performance_takehome/...

perfetto is pretty widely used for such traces, because building a viewer for your traces is a completely avoidable pain.

Re: Anthropic's original take home assignment open sourced

#112
post #83

Earlier quoted context omitted.

I feel that came out wrong but the "maybe" was intended to be a way of saying "no guarantees", to avoid giving people the idea "solve this, get hired".

In that case, removing „perhaps“ would have helped a lot. It is not about maybe being hired, but about maybe being interviewed.

They don't want to guarantee an interview to everyone who sends them an improved solution, either.

If three people send them improvements, they'll probably get interviews. If three thousand do, the problem is easier than they thought or amenable to an LLM or one bright person figured out a trick and shared it with all his classmates or colleagues or all of GitHub.

Re: Anthropic's original take home assignment open sourced

#113

Earlier quoted context omitted.

Could you make a repo with solutions given by each model inside a dir/branch for comparison?

Are you giving instructions to a stranger on the internet?

I think he’s asking rather than giving instructions

Re: Anthropic's original take home assignment open sourced

#114
post #96

I consider myself rather smart and good at what I do. It's nice to have a look at problems like these once in a while, to remind myself of how little I know, and how much closer I am to the average than to the top.

I'm 30 years in, and literally don't understand the question.

Generate instructions for their simulator to compute some numbers (hashes) in whatever is considered the memory of their "machine"¹. I didn't see any places where they actually disallow cheating b/c it says they only check the final state of the memory² so seems like if you know the final state you could just "load" the final state into memory. The cycle count is supposedly the LLM figuring out the fewest number of instructions to compute the final state but again, it's not clear what they're actually measuring b/c if you know the final state you can cheat & there is no way to tell how they're prompting the LLM to avoid the answers leaking into the prompt.

¹https://github.com/anthropics/original_performance_takehome/...

²https://github.com/anthropics/original_performance_takehome/...

Re: Anthropic's original take home assignment open sourced

#115

Having recently learned more about SIMD, PTX and optimization techniques, this is a nice little challenge to learn even more. As a take home assignment though I would have failed as I would have probably taken 2 hours to just sketch out ideas and more on my tablet while reading the code before even changing it.

Unless misread, 2 hours isn't the time limit for the candidate to do this but the time Claude eventually needed to outperform best returned solution. Best candidate could've taken 6h~2d to achieve this result.

No the 2 hours is their time limit for candidates. The thing is that you are allowed to use any non-human help for their take homes (open book), so if AI can solve it in below 2 hours, it's not very good at assessing the human.

Re: Anthropic's original take home assignment open sourced

#117

I consider myself rather smart and good at what I do. It's nice to have a look at problems like these once in a while, to remind myself of how little I know, and how much closer I am to the average than to the top.

Well it is a specialized problem. If you've never worked on anything similar previously, it is going to take time. Don't even need to interview for selective billion dollar companies like Anthropic to encounter these types of problems - after college I interviewed for various electronics/hardware companies where you'd get asked to optimize low-level code - which would have looked quite foreign, if you had never actua…

If you ask an EE to debug react state management code without prior exposure they won't do too well either. But on the other hand they can easily pick up most of it after a week long crash course while training a performance engineer who can optimize code for a specific architecture would take months.

Re: Anthropic's original take home assignment open sourced

#119
post #39

> This repo contains a version of Anthropic's original performance take-home, before Claude Opus 4.5 started doing better than humans given only 2 hours. Was the screening format here that this problem was sent out, and candidates had to reply with a solution within 2 hours ? Or, are they just saying that the latest frontier coding models do better in 2 hours than human candidates have done in the past in multiple da…

Oh, I thought candidates got 2 hours but now I am confused too

Re: Anthropic's original take home assignment open sourced

#120

Naively tested a set of agents on this task. Each ran the same spec headlessly in their native harness (one shot). Results: Agent Cycles Time ───────────────────────────────────────────── gpt-5-2 2,124 16m claude-opus-4-5-20251101 4,973 1h 2m gpt-5-1-codex-max-xhigh 5,402 34m gpt-5-codex 5,486 7m gpt-5-1-codex 12,453 8m gpt-5-2-codex 12,905 6m gpt-5-1-codex-mini 17,480 7m claude-sonnet-4-5-20250929 21,054 10m claude-…

Can you share the agent-comparison harness code or point to something similar? I want to learn about benchmarking models in a basic or practical sense.
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