82 comments

[ 3.5 ms ] story [ 79.4 ms ] thread
Anthropic, it would be nice to actually put a link to the website.
Whats the connection that got them the early in with anthropic?
I am going to assume that anything Anthropic acquires is going to be eventually used against you.
Good for them. We built similar tooling at that time, but backed by our own APIs. It's something that has a lot of value, that standardisation needs to exist, but it also makes a lot of sense to fold the team into a company like Anthropic that is so developer centric. Good luck to the team there.
I feel like we are seeing agentic coding tools morph into walled gardens with these acquisitions. Anthropic has restricted claude code usage while OpenAI has sort of let Codex fill the void. I am curious to see how this continues to evolve.
OpenAI uses stainless for at least some of their SDKs.
This feels like the Apple playbook, but for software tooling--they are becoming vertically integrated.
> As we focus on Claude Platform capabilities and connecting agents to APIs, we’ll be winding down all hosted Stainless products, including our SDK generator. Starting today, new signups, projects, and SDKs will not be available.

For better or worse, it's an acquihire.

I'm really disappointed that such a great service is getting taken off the market. Happy for their team, but sad for the ecosystem.

This has to be somewhat anti-competitive. Why else sunset the SDK generator service but to hurt any other company (OpenAI, etc) who relies on these for their SDKs?

looks like just an excuse to spend capital
Not really, its the right call in my opinion
Just want to take this moment to say thank you to all the customers I had the opportunity to interact with during my time at Stainless as I expect lots of them are likely to be active in this thread. It has been an honor to work with you all and none of what happened over the past 4 years would have been possible without your trust and support
I worked with Alex (founder of stainless) at Stripe and he's awesome. Happy for him and well deserved. Congrats Alex! :)
Now if only we had a service that could generate OpenAPI specs automatically...
Are they buying these for the tech, the people or to prevent supply chain hacks?
Some clarity about existing users/SDKs would go a long way. Otherwise this reads like "we just bought OpenAI's front door and we're EOLing it. Hopefully no one was planning to use it in the future". Petty and pointless.
On the contrary, destroying other people's things is a fundamental part of high-stakes capitalism. If that's what it is, you're describing it as petty and pointless because it's hurting you (or someone like you).

But hurting people can be the intent. If you're selling toys, you can make a business case for going out of your way to smash other people's toys, and that can become the main activity if it's advantageous enough.

'creating new things to make the world a better place' is marketing to a specific audience. There's other audiences who are just as willing to invest in 'will absolutely ruin any rivals', and that's hardly new. Right now it's very much in vogue but could become very unfashionable as people in general react to its inevitable effects.

if u can't replace the tools, then acquire the tool makers & shut down the tools.
I had never heard of Stainless, but it is deeply concerning that Anthropic are able to use monopoly money to kill software at their whim. First Bun, and now this. It's one thing for a corporation to do it with their own money, because at some point the board will ask them why they're wasting money. But Anthropic isn't even profitable. They're doing this with billions of dollars of borrowed money. Same thing with OpenAI committing to purchasing an unholy amount of RAM supply and directly causing the 5x price jump, with money they don't have.

I don't understand how investors continue to fund this nonsense. Anthropic wasting money on this should be an overwhelmingly strong signal that the AGI hype is blatant fraud and that software engineers are clearly not being replaced by Anthropic's software if they have to buy more engineers for some tertiary, fifth-order concern so far removed from their main line of business. Yet they just keep getting more and more money dumped on them.

surprised I had to scroll this far to find someone actually pointing this out. This kind of acquisitions are alarming, to say the least.
Wait Stainless is not a Rust company???
No, stainless is not, unfortunately
This makes sense, since their business model is built on Steeling everyone's data and feeding it to a monster.
Does anyone have a good guess as to the strategic reasoning behind this?

I know that common reasons for acquisitions are IP, talent, or reducing competition.

It seems like IP can't be the reason here. How is this strategically advantageous to Anthropic?

Utterly shameless plug, but recently at WorkOS I open sourced our OpenAPI spec to SDK pipeline: https://workos.com/blog/handwritten-sdks-are-dead

We evaluated Stainless & Fern for our 8+ languages but ultimately I couldn’t justify the cost nor ceding control to another organization for something as important as platform DX.

Anthropic is getting extremely petty and especially against oai

- ad in superbowl about how they are the good guys.

- dow public PR stunt (they are the ones to give Palantir their model access).

- sues openclaw.

- threatens every use of cc in oss community.

- prevents other companies using claude saying they cant use when they compete.

- never released a single open weight model.

- Dario told OAI is Yolo'ing in compute and they are now doing the same.

- gas lighting developers and then after weeks acknowledging they fiddled with reasoning juice.

- fear mongoring on mythos and then geting compute later and acknowledging publicly once they realized its not significantly better than gpt 5.5 cyber.

- signs a deal with Elon!

- now this!