early access

Token optimization only makes sense
before the API call.

Once a token is on the other side of the wire, more of them means more revenue — for someone else. Prefex sits before the call, with one job: send less, spend less.

three things worth knowing
01
Your instructions get re-read — and re-billed — on every single request.

That setup prompt you wrote once? The AI has no persistent memory of it. Every API call ships the full thing from scratch. If it's 2,000 words, that's 2,000 words billed every time, even though nothing changed.

02
Every reply in a conversation re-sends the entire conversation.

AI doesn't remember your chat — your app does, and it re-transmits the whole history each time. Message 40 in a thread means 40 messages travel to the API just to get message 41.

03
Teams use a $15 model for questions a $0.25 model answers just as well.

Not every task needs frontier intelligence. Simple lookups, short summaries, yes/no decisions — about 40% of everyday requests don't need the expensive model. The price gap between them is 60×.

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We're onboarding teams in small batches. Drop your details and we'll reach out when a spot opens.

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