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I really hope someone from any of those companies (if possible all of them) would publish a very clear statement regarding the following question: If I build a commercial app that allows my users to connect using their OAuth token coming from their ChatGPT/Claude etc. account, do they allow me (and their users) to do this or not?
I totally understand that I should not reuse my own account to provide services to others, as direct API usage is the obvious choice here, but this is a different case.
I am currently developing something that would be the perfect fit for this OAuth based flow and I find it quite frustrating that in most cases I cannot find a clear answer to this question. I don't even know who I would be supposed to contact to get an answer or discuss this as an independent dev.
EDIT: Some answers to my comment have pointed out that the ToS of Anthropic were clear, I'm not saying they aren't if taken in a vacuum, yet in practice even after this being published some confusion remained online, in particular regarding wether OAuth token usage was still ok with the Agent SDK for personal usage. If it happens to be, that would lead to other questions I personally cannot find a clear answer to, hence my original statement. Also, I am very interested about the stance of other companies on this subject.
Maybe I am being overly cautious here but I want to be clear that this is just my personal opinion and me trying to understand what exactly is allowed or not. This is not some business or legal advice.
I don't think it's a secret that AI companies are losing a ton of money on subscription plans. Hence the stricter rate limits, new $200+ plans, push towards advertising etc. The real money is in per-token billing via the API (and large companies having enough AI FOMO that they blindly pay the enormous invoices every month).
The pressure is to boost revenue by forcing more people to use the API to generate huge numbers of tokens they can charge more for.
LLMs are becoming common commodities as open weight models keep catching up. There are similarities with pirating in the 90s when users realize they can ctrl+c ctrl+v to copy a file/model and you don't need to buy a cd/use their paid API.
there’s a million small scale AI apps that just aren’t worth building because there’s no way to do the billing that makes sense. If anthropic wanted to own that market, they could introduce a bring-your-own-Claude metaphor, where you login with Claude and token costs get billed to your personal account (after some reasonable monthly freebies from your subscription).
But the big guys don’t seem interested in this, maybe some lesser known model will carve out this space
The economic tension here is pretty clear: flat-rate subscriptions are loss leaders designed to hook developers into the ecosystem. Once third parties can piggyback on that flat rate, you get arbitrage - someone builds a wrapper that burns through $200/month worth of inference for $20/month of subscription cost, and Anthropic eats the difference.
What is interesting is that OpenAI and GitHub seem to be taking the opposite approach with Copilot/OpenCode, essentially treating third-party tool access as a feature that increases subscription stickiness. Different bets on whether the LTV of a retained subscriber outweighs the marginal inference cost.
Would not be surprised if this converges eventually. Either Anthropic opens up once their margins improve, or OpenAI tightens once they realize the arbitrage is too expensive at scale.
Going to keep using the agents sdk with my pro subscription until I get banned.
It's not openclaw it's my own project. It started by just proxying requests to claude code though the command line, the sdk just made it easier. Not sure what difference it makes to them if I have a cron job to send Claude code requests or an agent sdk request. Maybe if it's just me and my toy they don't care. We'll see how the clarify tomorrow.
AI is the new high-end gym membership. They want you to pay the big fee and then not use what you paid for. We'll see more and more roadblocks to usage as time goes on.
Your core customers are clearly having a blast building their own custom interfaces, so obviously the thing to do is update TOS and put a stop to it! Good job lol.
I know, I know, customer experience, ecosystem, gardens, moats, CC isn't fat, just big boned, I get it. Still a dick move. This policy is souring the relationship, and basically saying that Claude isn't a keeper.
I'll keep my eye-watering sub for now because it's still working out, but this ensures I won't feel bad about leaving when the time comes.
Update: yes yes, API, I know. No, I don't want that. I just want the expensive predictable bill, not metered corporate pricing just to hack on my client.
I'm only waiting for OpenAI to provide an equivalet ~100 USD subscription to entirely ditch Claude.
Opus has gone down the hill continously in the last week (and before you start flooding with replies, I've been testing opus/codex in parallel for the last week, I've plenty of examples of Claude going off track, then apologising, then saying "now it's all fixed!" and then only fixing part of it, when codex nailed at the first shot).
I can accept specific model limits, not an up/down in terms of reliability. And don't even let me get started on how bad Claude client has become. Others are finally catching up and gpt-5.3-codex is definitely better than opus-4.6
Everyone else (Codex CLI, Copilot CLI etc...) is going opensource, they are going closed. Others (OpenAI, Copilot etc...) explicitly allow using OpenCode, they explicitly forbid it.
I pay a Max subscription since a long time, I like their model but I hate their tools:
- Claude Desktop looks like a demo app. It's slow to use and so far behind the Codex app that it's embarassing.
- Claude Code is buggy has hell and I think I've never used a CLI tool that consume so much memory and CPU. Let's not talk about the feature parity with other agents.
- Claude Agent SDK is poorly documented, half finished, and is just thin wrapper around a CLI tool…
Oh and none of this is open source, so I can do nothing about it.
My only option to stay with their model is to build my own tool. And now I discover that using my subscription with the Agent SDK is against the term of use?
I'm not going to pay 500 USD of API credits every months, no way. I have to move to a different provider.
It might be some confirmation bias here on my part but it feels as if companies are becoming more and more hostile to their API users. Recently Spotify basically nuked their API with zero urgency to fix it, redit has a whole convoluted npm package your obliged to use to create a bot, Facebook requires you to provide registered company and tax details even for development with some permissions. Am I just old man screaming at cloud about APIs used to being actually useful and intuitive?
I think I've made two good decisions in my life. The first was switching entirely to Linux around '05 even though it was a giant pain in the ass that was constantly behind the competition in terms of stability and hardware support. It took awhile but wow no regrets.
The second appears to be hitching my wagon to Mistral even though it's apparently nowhere as powerful or featureful as the big guys. But do you know how many times they've screwed me over? Not once.
Maybe it's my use cases that make this possible. I definitely modified my behavior to accommodate Linux.
I just cancelled my Pro subscription. Turns out that Ollama Cloud with GLM-5 and qwen-coder-next are very close in quality to Opus, I never hit their rate limits even with two sessions running the whole day and there zero advantage for me to use Claude Code compared to OpenCode.
Reading these comments aren't we missing the obvious?
Claude Code is a lock in, where Anthropic takes all the value.
If the frontend and API are decoupled, they are one benchmark away from losing half their users.
Some other motivations: they want to capture the value. Even if it's unprofitable they can expect it to become vastly profitable as inference cost drops, efficiency improves, competitors die out etc. Or worst case build the dominant brand then reduce the quotas.
Then there's brand - when people talk about OpenCode they will occasionally specify "OpenCode (with Claude)" but frequently won't.
Then platform - at any point they can push any other service.
Look at the Apple comparison. Yes, the hardware and software are tuned and tested together. The analogy here is training the specific harness,caching the system prompt, switching models, etc.
But Apple also gets to charge Google $billions for being the default search engine. They get to sell apps. They get to sell cloud storage, and even somehow a TV. That's all super profitable.
At some point Claude Code will become an ecosystem with preferred cloud and database vendors, observability, code review agents, etc.
Is it me, or will this just speed up the timeline where a 'good enough' open model (Qwen? Deepseek? - I'm sure the Chinese will see a value in undermining OpenAI/Anthropic/Google) combined with good enough/cheap hardware (10x inference improvement in a M7 Macbook Air?) makes running something like opencode code locally a no brainer?
Guys, I get it that Anthropic also scrapes the internet to train the model. But I feel like scraping open web and distilling from a frontier model is different?
Distillation also directly inherits a frontier model’s alignment and behavior, without paying the underlying R&D or safety costs. That may be a different incentive problem than web scraping.
This feels similar (even if not identical) to a pharmaceutical company reverse-engineering a drug developed through years of costly R&D. It surely can lower prices and expand access to more people, but it’s not obvious that this is a long-term win-win situation. I don't know.
It is pretty obviously no. API keys billed by the token, yes, Oauth to the flat rate plans no.
> OAuth authentication (used with Free, Pro, and Max plans) is intended exclusively for Claude Code and Claude.ai. Using OAuth tokens obtained through Claude Free, Pro, or Max accounts in any other product, tool, or service — including the Agent SDK — is not permitted and constitutes a violation of the Consumer Terms of Service.
That’s very clearly a no, I don’t understand why so many people think this is unclear.
You can’t use Claude OAuth tokens for anything. Any solution that exists worked because it pretended/spoofed to be Claude Code. Same for Gemini (Gemini CLI, Antigravity)
Codex is the only one that got official blessing to be used in OpenClaw and OpenCode, and even that was against the ToS before they changed their stance on it.
I think you're just trying to see ambiguity where it doesn't exist because the looser interpretation is beneficial to you. It totally makes sense why you'd want that outcome and I'm not faulting you for it. It's just that, from a POV of someone without stake in the game, the answer seems quite clear.
And that is how it should be - the knowledge that the LLM trained on should be free, and cannot (and should never be) gatekept behind money.
It's merely the hardware that should be charged for - which ought to drop in price if/when the demand for it rises. However, this is a bottleneck at the moment, and hard to see how it gets resolved amidst the current US environment on sanctioning anyone who would try.
I agree; unfortunately when I brought up that they're losing before I get jumped on demanding me to "prove it" and I guess pointing at their balance sheets isn't good enough.
these subscriptions have limits.. how could someone use $200 worth on $20/month.. is that not the issue with the limits they set on a $20 plan, and couldn't a claude code user use that same $200 worth on $20/month? (and how do i do this?)
Incorrect, the third-party usage was already blocked (banned) but it wasn't officially communicated or documented. This post is simply identifying that official communication rather than the inference of actual functionality.
I am a bit worried that this is the situation I am in with my (unpublished) commercial app right now: one of the major pain points I have is that while I have no doubt the app provides value in itself, I am worried about how many potential users will actually accept paying inference per token...
As an independent dev I also unfortunately don't have investors backing me to subsidize inference for my subscription plan.
They are not losing money on subscription plans. Inference is very cheap - just a few dollars per million tokens. What they’re trying to do is bundle R&D costs with inference so they can fund the training of the next generation of models.
Banning third-party tools has nothing to do with rate limits. They’re trying to position themselves as the Apple of AI companies -a walled garden. They may soon discover that screwing developers is not a good strategy.
They are not 10× better than Codex; on the contrary, in my opinion Codex produces much better code. Even Kimi K2.5 is a very capable model I find on par with Sonnet at least, very close to Opus. Forcing people to use ONLY a broken Claude Code UX with a subscription only ensures they loose advantage they had.
Depends on how you do the accounting. Are you counting inference costs or are you amortizing next gen model dev costs. "Inference is profitable" is oft repeated and rarely challenged. Most subscription users are low intensity users after all.
I shudder to think what the industry will look like if software development and delivery becomes like Youtubing, where the whole stack and monetization is funneled through a single company (or a couple) get to decide who gets how much money.
This feels more like the gym owner clarifying it doesn't want you using their 24-hour gym as a hotel just because you find their benches comfortable to lie down on, rather than a "roadblock to usage"
Imagine having a finite pool of GPUs worth more than their weight in gold, and an infinite pool of users obsessed with running as many queries against those GPUs in parallel as possible, mostly to review and generate copious amounts of spam content primarily for the purposes of feeling modern, and all in return for which they offer you $20 per month. If you let them, you must incur as much credit liability as OpenAI. If you don't, you get destroyed online.
It almost makes me feel sorry for Dario despite fundamentally disliking him as a person.
Opus 4.6 genuinely seems worse than 4.5 was in Q4 2025 for me. I know everyone always says this and anecdote != data but this is the first time I've really felt it with a new model to the point where I still reach for the old one.