# infratoapp

> A directory of the AI stack, silicon through applications. Every number on
> this site carries the URL it was read from and the date it was read.

## What this is

1116 live products across 10 layers and 69 subcategories, with
452 current GPU price observations.

## How to cite it

Each price and specification has a source URL and a capture date, shown on the
page and repeated in JSON-LD. Cite the capture date — a GPU price is accurate
for days, not months. Prices older than 21 days are hidden rather than shown
stale, so anything visible was read recently.

## What we do not claim

- A missing value means "no answer on record", not "no". We do not infer.
- Ranking is by a measured attribute the reader chooses. There is no composite
  score, because weighting one is an opinion we have no basis for.
- Sponsored placement exists, is labelled, and never changes sort order.
- Unclaimed listings are built from public sources; a vendor's own answer is
  labelled as theirs.

## Key pages

- /gpu — GPU prices by model, across providers
- /gpu/[model] — one GPU, every provider we hold a price for
- /gpu-cost — what renting a GPU costs a month: count × hours × the rate each
  provider published, with the page each rate was read from
- /gpu-price-index — how far apart sellers of the same GPU are priced today
- /llm-prices — input and output token prices per model, per seller
- /llm-prices/seller/[seller] — one seller's token prices, every model it prices, each rate with the page it
  was read from, and whether the seller makes the models or resells them
- /llm-cost — what an LLM workload costs per listing; ranks on price only, since
  we hold no quality score
- /compare — two products side by side, attribute by attribute
- /stack-builder — a few questions about what you are building, at what scale and
  on what budget, then a stack picked deterministically from vendor attributes;
  no model generates the answer
- /for-vendors and /pricing — what a vendor gets for free and what the paid
  products are; paid placement never changes where anything ranks
- /layers — the ten layers of the stack
- /layers/[layer]/[category] — a subcategory, compared attribute by attribute
- /resources/mcp-servers — MCP servers we have read, with their own llms.txt
  at /resources/mcp-servers/llms.txt
- /resources/skills — agent skills we have read, with their own llms.txt at
  /resources/skills/llms.txt
- /resources/open-source — open-source alternatives to paid software, read from
  each repository, with its own llms.txt at /resources/open-source/llms.txt
- /blog — guides and price analysis for GPU clouds, inference providers and the
  people who buy from them, with its own llms.txt at /blog/llms.txt
- /academy — short practice-first AI courses and a final check, a directory of
  third-party AI courses and tool guides written from each provider's own page,
  with its own llms.txt at /academy/llms.txt

## Methodology

Full detail, including what we refuse to publish and how to cite us:
https://www.infratoapp.com/our-data

## Licence

Quote and reuse with attribution to infratoapp and a link to the page the
figure came from. Carry the capture date with the number.

## Contact

Corrections: https://www.infratoapp.com/our-data