Antimatter Compute, in brief

Antimatter Compute lists every language model it can reach, with its price, and serves them all through one OpenAI compatible API behind a key your wallet creates. It hosts no models. Every answer comes from a provider.

Pricing shows every rate. The map draws each model as a planet you can open. Chat talks to any of them, or to several side by side.

Your request reaches the gateway on your key. The gateway checks the key, holds the worst case cost, picks the model, and meters the answer on its way back.

• APIs: OpenAI chat completions, Anthropic messages and OpenAI Responses, all streaming, plus embeddings, images, audio and batch.
• Autopilot: ask for antimatter/auto instead of a model, and the router picks one by price, speed and measured quality.
• Fallback: name several models, or ask for the nearest comparable one, and a failure moves on to the next.
• Strict JSON: an answer can be checked against your schema before you get it.
• Resumable streams: a dropped connection picks up where it left off.
• Your own key: bring a provider key, and its requests bill your provider account.
• Measured: probes test whether tool calls and JSON output work, and what nobody measured reads unmeasured.

Every answer carries its request id and its billed cost in its headers, and the time the gateway itself added in x-antimatter-overhead-ms. Pricing publishes that time once 20 requests have been measured.

You pay the provider's published price plus a margin of 10%, the same for everyone. Pricing shows both rates side by side. A new account gets $0.25 free, once, to try models.

You pay in $ANTI on Robinhood Chain, sent from your signed in wallet to the address billing shows, and claimed by transaction. It is credited in dollars at the credit price when it is claimed. That price is the lower of the latest market price and the last day's median, so a sudden spike never raises it. Stablecoins are not accepted right now. There are no card payments.

The worst case is held before a request and settled to the real cost after. Credit is spent on requests and cannot be withdrawn.

A request to the API stores no prompt and no answer unless you ask it to. What is kept is the bill: the model, the tokens, the cost and the timing.

• Chat keeps your threads and a batch keeps its lines, because that is their job.
• Signing in with email or a social account shares it with Privy, which makes the wallet. Antimatter keeps only the wallet's address.
• A prompt goes to the provider that serves your model. On Antimatter's own key, it goes only to providers that do not collect or train on prompts.

You can export everything, or erase the account, from the dashboard. The privacy policy has every window.

$ANTI is the Antimatter token, on Robinhood Chain. Its contract is 0x72d5bf142874d24d1565f8633621307fd2871111, and no other address is it. Right now it is also how you pay: $ANTI sent from your signed in wallet is credited in dollars at the credit price when it is claimed.

Once the operator sets holder tiers, holding it can raise your free allowance or your request rate, or take a share off the margin, never below the provider's price. 2 tiers are set here, granting a higher request rate. The token page has the rest.

1. Sign in on your account home with a wallet, or with email, Google or X.
2. Create a key on the dashboard. It starts am_live_ and is shown once.
3. Point the official OpenAI or Anthropic client at https://useantimatter.com/v1 with that key. Antimatter's own SDKs are built and not yet published.