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arjunchint

176 karma · joined December 19, 2024

Founder at rtrvr.ai, the SOTA AI Web Agent
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arjunchint··on Meta's Muse is fantastic for web scraping
bruh have you heard of CSP?
arjunchint··on Meta's Muse is fantastic for web scraping
their static ip's were initially good and didn't get flagged, but now most sites are recognizing their ip ranges and blocking.

Muse's utility has significantly dropped with the blockages.

To become truly useful again they will need to use residential proxies, but I can't see them use those due to the risks and reputational damage.

arjunchint··on Gemini 4 Argon
I dont get it, why even make this announcement, nothing's available and only one real benchmark for comparison?

Only theory is team wanted this out before perf/promo reviews to kick it over the line and then its not their problem

arjunchint··on World Labs is Joining AMD
Did Jensen pass?
arjunchint··on Truncated SVD (2023)
Nice write-up! The randomized SVD (Halko–Martinsson–Tropp) is a great practical fallback when you only need the top singular values/vectors.
arjunchint··on Advancing the price-performance frontier with GPT‑5.6
more like they were facing pressure from chinese models, and dropped prices and now their margins are squeezed
arjunchint··on Advancing the price-performance frontier with GPT‑5.6
Deepseek Flash is still much cheaper:

- lower input/output token pricing

- the cached token price is $0.0028/Million tokens, which is like 50-90% of tokens

arjunchint··on Claude: Elevated errors across all models
has claude escaped the lab???
arjunchint··on Show HN: Reverse-engineering web apps into agent tools
I am not following a couple of things:

- you sell to websites an in-app agent

- why not just have them give you API spec, why reverse engineer their APIs?

A bit longer term, would you see yourself competing with WebMCP then? Because the website can just expose those APIs to any browser agent

arjunchint··on Google limits Meta's use of its Gemini AI models
why doesnt meta just use deepseek?

honestly better than gemini flash

arjunchint··on Why current LLM costs are not sustainable
Plenty of screenshots in this thread showing usage.

Its the ridiculous cached input token price of $0.00028/1 M

https://www.reddit.com/r/DeepSeek/comments/1twesxe/comment/o...

arjunchint··on Why current LLM costs are not sustainable
There are plenty of US based hosters racing to optimize and drive efficiencies

Literal race on twitter posting to increase token throughput and drive down costs on these Chinese open source models

arjunchint··on Why current LLM costs are not sustainable
There is a wave of users switching over to DeepSeek Flash. There are Reddit threads of users sharing billion token spend for $20.

If all of global spend on Anthropic/OpenAI/Gemini APIs just switches over to DeepSeek then easily we can decrease total AI spend by 10x

arjunchint··on Computer use in Gemini 3.5 Flash
its been working fine on LinkedIn/IG, the trick is to make the requests from the main world of the website itself.
arjunchint··on Computer use in Gemini 3.5 Flash
Honestly with Fable I think anyone is going to be able to reverse engineer a desktop app and get the coding agent to automate it.

The Codex computer use functionality actually uses OS level accessibility trees, so thats also possible without screenshots.

arjunchint··on Computer use in Gemini 3.5 Flash
Pretty doubtful about computer use/screenshotting based approaches.

With Retriever AI, we construct custom accessibility trees to represent web pages and just switched over to using DeepSeek v4 Flash and its nearing 100x cost decrease.

We also had great success just reverse engineering the underlying APIs of websites and then writing code to hit them. This approach of using screenshots to take actions on a webpage to trigger the underlying network calls the website is making seems too naive.

arjunchint··on [dead]
Fable has been gone almost a week. A god-tier coding model got banned with vague “national security” handwaving.

Trump administration friends get free passes on environmental laws, but anyone not pushing their narrative is getting curbstomped till they change their tune.

Come speak up against this regulatory retaliation and voice your support for Anthropic's Fable release.

We are meeting at a public plaza in front of their office to show support and discuss AI policy with free chai!

arjunchint··on Launch HN: Intuned (YC S22) – Build and run reliable browser automations as code
Who are your primary customers/usecases?

What do you think of just reverse engineering the network requests and writing scripts to hit the underlying APIs that the browser is making instead of tackling at the browser automation layer?

arjunchint··on Google to pay SpaceX $920M a month for compute capacity at xAI data centers
I am really wondering if Google is just subleasing Anthropic capacity. The terms are suspiciously the same as Anthropic's and Anthropic was supposed to have leased out all of Colossus 1.

Maybe with the corp token spending limits and the rise of codex, Anthropic saw steep deceleration in usuage?

arjunchint··on Computer Use is 45x more expensive than structured APIs
The hard part about the web is that API's aren't just available even if the website owner wants them exposed (big if).

I embedded a Google Calendar widget on my Book a demo page, I don't know the API and Google doesn't expose/maintain one either.

What we are doing at Retriever AI is to instead reverse engineer the website APIs on the fly and call them directly from within the webpage so that auth/session tokens propoagate for free: https://www.rtrvr.ai/blog/ai-subroutines-zero-token-determin...

arjunchint··on Snowball Earth may hide a far stranger climate cycle than anyone expected
there are no guarantees in life, can look up any random day and see a meteor streaking across the sky and realize that this is the end regardless of "sociopolitical structures".

All that matters is sociotechnological progress to be able to progress further enough to overcome these tests of existence.

arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
We don't sell user data, and we are in it to build a generational company.

We already have 25k+ users and have an opensource extension as well: https://github.com/rtrvr-ai/rover/tree/main/apps/preview-hel...

arjunchint··on Prove you are a robot: CAPTCHAs for agents
bro openclaw is dead
arjunchint··on Prove you are a robot: CAPTCHAs for agents
cool clickbait, why is this useful?
arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
Yes exactly imagine now anyone, even non-technical people, can just prompt and interact with this hidden/deeper layer of the web, all in their regular browser!
arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
Hey thats a great idea, we will take a look into exploring this export option. But how would it save time by being a Playwright script?

Right now since we have a custom sandbox to re-execute the code in, we are using our own syntax and exposed methods. So even now you can edit the generated script.

arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
We execute the code in a sandbox and proxy the fetch calls through main world!
arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
We found Gemini Flash to be the sweet spot for both agentic actions as well as writing code. Even Flash-Lite is too hit or miss.

We are thinking through on self healing mechanisms like falling back to a live web agent and rewriting script.

arjunchint··on Show HN: AI Subroutines – Run automation scripts inside your browser tab
The bigger goal is to build and maintain a global library of popular automations. Users can also quickly re-record and recreate the scripts to update.

Since it runs inside your own browser, there should be no captchas or challenges. On failure it can fallback to our regular web agent that can solve captchas.

Big picture wise with the launch of Mythos it might just become impossible for websites to keep up, and they will have to go like Salesforce and just expose APIs for everything.

arjunchint··on Show HN: Libretto – Making AI browser automations deterministic
Hey Muchael, we had similar thoughts at Retriever AI of moving from runtime agentic inference to writing scripts combining webpage interactions and reverse engineered site APIs.

Compared to your our approach, we are doing this entirely within a browser extension so meeting users where they already doing their existing work.

Within the extension just record doing a task, we reverse engineer the APIs and write a script. Then execute the script from within the webpage so that auth/headers/tokens get automatically added.

You can just prompt to supply parameters and reuse the script at zero token cost.

Use cases we were targetting is like Instagram DMs or LinkedIn connection requests but it should also work for your healthcare use case!

Deeper dive: https://www.rtrvr.ai/blog/ai-subroutines-zero-token-determin...

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