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Was anyone under the impression that it does? Serious question. I've never heard that, personally.
This is such a well-written essay. Every line revealed the answer to the immediate question I had just thought of
Nobody gets RSI typing “iterate until tests pass”
These margins are far greater than the ones Dario has indicated during many of his recent podcasts appearances.
How confident are you in the opus 4.6 model size? I've always assumed it was a beefier model with more active params that Qwen397B (17B active on the forward pass)
Ok but so it does cost Cursor $5k per power-Cursor user?? Still seems pretty rough..
Good article! Small suggestions:

1. It would be nice to define terms like RSI or at least link to a definition.

2. I found the graph difficult to read. It's a computer font that is made to look hand-drawn and it's a bit low resolution. With some googling I'm guessing the words in parentheses are the clouds the model is running on. You could make that a bit more clear.

> I'm fairly confident the Forbes sources are confusing retail API prices with actual compute costs

Aren't they losing money on the retail API pricing, too?

> ... comparisons to artificially low priced Chinese providers...

Yeah, no this article does not pass the sniff test.

Is it fair to say the Open Router models aren't subsidized though? They make the case that companies on there are running a business, but there are free models, and companies with huge AI budgets that want to gather training data and show usage.
By the way, one of the charts in the article shows that Opus 4.6 is 10x costlier than Kimi K2.5.

I thought there was no moat in AI? Even being 10x costlier, Anthropic still doesn't have enough compute to meet demand.

Those "AI has no moat" opinions are going to be so wrong so soon.

If Anthropic's compute is fully saturated then the Claude code power users do represent an opportunity cost to Anthropic much closer to $5,000 then $500.

Anthropic's models may be similar in parameter size to model's on open router, but none of the others are in the headlines nearly as much (especially recently) so the comparison is extremely flawed.

The argument in this article is like comparing the cost of a Rolex to a random brand of mechanical watch based on gear count.

> Qwen 3.5 397B-A17B is a good comparison

It is not. It's a terrible comparison. Qwen, deepseek and other Chinese models are known for their 10x or even better efficiency compared to Anthropic's.

That's why the difference between open router prices and those official providers isn't that different. Plus who knows what open routed providers do in term quantization. They may be getting 100x better efficiency, thus the competitive price.

That being said not all users max out their plan, so it's not like each user costs anthropic 5,000 USD. The hemoragy would be so brutal they would be out of business in months

> Plus who knows what open routed providers do in term quantization

The quantisation is shown on the provider section.

Actually, Opus might achieve a lower cost with the help of TPUs.
Comparing open-source models like Qwen against Anthropic’s models is absolutely foolish. First of all, Anthropic has never disclosed the actual parameter count or architecture of their models. Second, it’s well known that these open-source models more or less distill from other models and use MoE, which allows them to run at much lower computational costs. Using Qwen as a comparison point only proves the blog post author is foolish. The article devoted such a large portion to discussing Qwen on OpenRouter, I find it hard to believe.
No they wouldn't. They have tons of funding. They absolutely can and do absorb costs like this. Don't think anyone is ever gonna tell you precise numbers (and it also varies based on workload of course)...but this is literally the business model of AI providers.

They're goal (similar to Uber, DoorDash, Robin Hood, etc.) is to get mass adoption. Their business models only work at this kind of scale.

It's completely impossible to have consumers pay $20-60/mo and be a profitable business without mass adoption where some are not using it as much as others...and, perhaps more importantly, the masses put pressure on their employers to pay for their tooling. This is why pricing does not need to come down.

Quite literally I have engineers spending over $1,000/mo on Opus. That's the goal.

This article is hilariously flawed, and it takes all of 5 seconds of research to see why.

Alibaba is the primary comparison point made by the author, but it's a completely unsuitable comparison. Alibab is closer to AWS then Anthropic in terms of their business model. They make money selling infrastructure, not on inference. It's entirely possible they see inference as a loss leader, and are willing to offer it at cost or below to drive people into the platform.

We also have absolutely no idea if it's anywhere near comparable to Opus 4.6. The author is guessing.

So the articles primary argument is based on a comparison to a company who has an entirely different business model running a model that the author is just making wild guesses about.

I calculated only last weekend that my team would cost, if we would run Claude Code on retail API costs, around $200k/mo. We pay $1400/month in Max subscriptions. So that's $50k/user... But what tokens CC is reporting in their json -> a lot of this must be cached etc, so doubt it's anywhere near $50k cost, but not sure how to figure out what it would cost and I'm sure as hell not going to try.
Gemini CLI shows how much was saved through caching each session, and it's usually somewhere around 90%
yeah the json token counts are super misleading. i run a bunch of claude agents for automation and like 85% of input tokens end up being cached reads -which cost 1/10th of the sticker price. so your $200k number is probably closer to $25-30k in real cost, and thats before you factor in that anthropics own infra is way cheaper than retail API pricing. the $5k forbes number was always nonsense but even the "corrected" estimates in TFA are probably still too high IMO
Well, IDK, I have used CC with API billing pretty extensively and managed to spend ~$1000 in one month more or less. Moved to a Max 20x subscription and using it a bit less (I'm still scared) but not THAT less and I'm around 10% weekly usage. I'm not counting the tokens, though.
What people don't realize is that cache is *free*, well not free, but compared to the compute required to recompute it? Relatively free.

If you remove the cached token cost from pricing the overall api usage drops from around $5000 to $800 (or $200 per week) on the $200 max subscription. Still 4x cheaper over API, but not costing money either - if I had to guess it's break even as the compute is most likely going idle otherwise.

> What people don't realize is that cache is free

I'm incredibly salty about this - they're essentially monetizing intensely something that allows them to sell their inference at premium prices to more users - without any caching, they'd have much less capacity available.

Cache definitely isn't free! We're in a global RAM shortage and KV caches sit around consuming RAM in the hope that there will be a hit.

The gamble with caching is to hold a KV cache in the hope that the user will (a) submit a prompt that can use it and (b) that will get routed to the right server which (c) won't be so busy at the time it can't handle the request. KV caches aren't small so if you lose that bet you've lost money (basically, the opportunity cost of using that RAM for something else).

free relative to gpu cost even at these costs
A huge number of people are convinced that OpenAI and Anthropic are selling inference tokens at a loss despite the fact that there's no evidence this is true and a lot of evidence that it isn't. It's just become a meme uncritically regurgitated.

This sloppy Forbes article has polluted the epistemic environment because now theres a source to point to as "evidence."

So yes this post author's estimation isn't perfect but it is far more rigorous than the original Forbes article which doesn't appear to even understand the difference between Anthropic's API costs and its compute costs.

I think the wafer scale compute is a massive deal. It's already being leveraged for models you can use right now and the reception on HN has been negligible. The entire model lives in SRAM. This is orders of magnitude faster than HBM/DRAM. I can't imagine they couldn't eventually break even using hardware like this in production.
> A huge number of people are convinced that OpenAI and Anthropic are selling inference tokens at a loss despite the fact that there's no evidence this is true

Theres quite a lot of evidence, no proof I'd agree, but then there's no absolute proof I'm aware to the contrary either, so I don't know where you're getting this from.

The two pieces of evidence I'm aware of is that 1) Anthropic doesn't want their subsidised plans being used outside of CC, which would imply that the money their making off it isn't enough, and 2) last time I checked, API spending is capped at $5000 a month

Like I say, neither of these are proof, you can come up with reasonable arguments against them, but once again the same could be said for evidence on the contrary

I'd love to be a fly on the wall when this argument is tried in front of a bankruptcy court. It drives me nuts. Of course there's evidence that they're selling tokens at a loss.

The only thing these companies sell are tokens. That's their entire output. OpenAI is trying to build an ad business but it must be quite small still relative to selling tokens because I've not yet seen a single ad on ChatGPT. It's not like these firms have a huge side business selling Claude-themed baseball caps.

That means the cost of "inference" is all their costs combined. You can't just arbitrarily slice out anything inconvenient and say that's not a part of the cost of generating tokens. The research and training needed to create the models, the salaries of the people who do that, the salaries of the people who build all the serving infrastructure, the loss leader hardcore users - all of it is a part of the cost of generating each token served.

Some people look at the very different prices for serving open weights models and say, see, inference in general is cheap. But those costs are distorted by companies trying to buy mindshare by giving models away for free, and of those, both the top labs keep claiming the Chinese are distilling them like crazy including using many tactics to evade blocks! So apparently the cost of a model like DeepSeek is still partly being subsidized by OpenAI and Anthropic against their will. The cost of those tokens is higher than what's being charged, it's just being shifted onto someone else's books. Nice whilst it lasts, but this situation has been seen many times in the past and eventually people get tired of having costs externalized onto them.

For as long as firms are losing money whilst only selling tokens, that means those tokens are selling at a loss. To not sell tokens at a loss the companies would have to be profitable.

What you are talking about isn't inference cost. Yes, fundamentally what matters is all the work that goes into the models, including R&D, training, and inference.

But we talk about inference separately for a reason: largely inference cost is the scaling cost. Once you have a model the margin on your inference is how you get to profitability, as long as your margin is positive you can make the entire enterprise profitable by just selling more tokens. This is the same fundamental business that chip fabs work on. Yes it costs them a lot to get to the next node, but what's important is the margin they can get on the wafers they sell, because they sell tonnes of wafers.

It's pretty core to the concept of SAAS businesses that yes, you do consider all costs. But you want to focus on the margin of the bit that scales. This is why WeWork exploded, the thing they were scaling only scaled up at negative margin.

The point is that if their inference margin is positive, they can "just" scale up and become profitable. If their inference margin is negative, then scaling up the business actually causes problems.

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They are and they are convinced the cost is not truly baked in because you need to factor in all the training and R&D. It’s a mixture of folks that 1) are convinced AI is terrible, 2) hate Sam Altman and 3) don’t understand how business price products.

We don’t have clear evidence either way but it heavily leans to API pricing at least covering inference cost. Models these days have less and less differentiation and for API use there must be some thought to compete on cost but it’s not going to be winner take all. They leap frog each other with each new model.

> A huge number of people are convinced that OpenAI and Anthropic are selling inference tokens at a loss despite the fact that there's no evidence this is true and a lot of evidence that it isn't.

I think it’s fairly obvious that Anthropic is lighting cash on fire and focusing on whether or not they’re losing money per token on inference is missing the forest for the trees.

Tokens become less valuable when the models aren’t continuously trained and we have zero idea what Anthropic is paying for training.

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Nobody really knows but the simple fact is these companies are not making any profit. Far from it.
What CC costs internally is not public. How efficient it is, is not public.

…You could take efficiency improvement rates from previous models releases (from x -> y) and assume; they have already made “improvements” internally. This is likely closer to what their real costs are.

Claude subscription is equivalant of spot instance

And APIs are on-demand service equivalant.

Priority is set to APIs and leftover compute is used by Subscription Plans.

When there is no capacity, subscriptions are routed to Highly Quantized cheaper models behind the scenes.

Selling subscription makes it cheaper to run such inference at scale otherwise many times your capacity is just sitting there idle.

Also, these subscription help you train your model further on predictable workflow (because the model creators also controls the Client like qwen code, claude code, anti gravity etc...)

This is probably why they will ban you for violating TOS that you cannot use their subscription service model with other tools.

They aren't just selling subscription, but the subscription cost also help them become better at the thing they are selling which is coding for coding models like Qwen, Claude etc...

I've used qwen code, codex and claude.

Codex is 2x better than Qwen code and Claude is 2x better than Codex.

So I'd hope the Claude Opus is atleast 4-5x more expensive to run than flagship Qwen Code model hosted by Alibaba.

> When there is no capacity, subscriptions are routed to Highly Quantized cheaper models behind the scenes.

Have they announced this?

Tl;dr, their guesstimate:

> Anthropic is looking at approximately $500 in real compute cost for the heaviest users.

The comparison with Qwen/Kimi by "comparable architecture size" is doing a lot of heavy lifting. Parameter count doesn't tell you much when the models aren't in the same league quality-wise.

I wonder if a better proxy would be comparing by capability level rather than size. The cost to go from "good" to "frontier" is probably exponential, not linear - so estimating Anthropic's real cost from what it takes to serve Qwen 397B seems off.

What this doesn't mention is the "cost" to the public: the inevitable bailouts after it all comes crashing down again, the massive subsidies that Datacenters get from tax payers, the fresh water they consume, the electricity price hikes for everyone else, the noise, air and water pollution and the massive health impact on the surrounding population of every datacenter. The jobs that it destroys and the innocent people it kills through use of the technology in military targeting and autonomous weapons usage.
I easily go through two pro max $200/m accounts and yesterday got a third pro account when I ran out.

It’s worth it, but I know they aren’t making money on me. But, of course I’m marketing them constantly so…

Why does Claude charge 10x for API, compared to subscriptions? They're not a monopoly, so one would expect margins to be thinner.