Frontier quality. A fraction of the cost.

An OpenAI-compatible API with one model string: "auto". Every request runs on the cheapest model that passes verification — specialist open models first, frontier only when it's needed. You pay for what the answer actually cost, and every response says what the frontier would have charged.

Create an account

Verify your email, get an API key and $30 of credit. No card, no sales call.

Point your OpenAI client at Pareta

Change base_url, set model to "auto". Streaming, JSON schemas, tools — they all just work.

Pay what the answer costs

Answers are verified before they're served, escalated to frontier only on genuine failures — and every response carries a billed-vs-frontier cost receipt.

How Pareta works

01 Two lines change Point your OpenAI client's base_url at Pareta and set model to "auto". Nothing else about your code changes.

02 The cheapest capable model runs Each request routes to the specialist most likely to answer it well — or straight to a frontier model when that's what the request needs.

03 Every answer is verified Answers are checked before they're served. A genuine failure escalates to frontier — you never see the miss, and you never pay for it.

04 The routing learns Judged results from live traffic feed the quality scores that decide where the next prompt runs.

Measured, not promised

Six task benchmarks isolate the specialist path: Pareta met or exceeded the strongest frontier baseline on five tasks and came within 4% on one, at 20–142× lower serving cost.

Task Quality — best frontier = 100 Cost advantage — vs same frontier

Intent classificationF1 · vs Claude Opus

113%

88×

Text embeddingnDCG@10 · vs OpenAI 3-large

109%

32×

ICD-10 medical codingmicro-F1 · vs GPT-5.5

106%

138×

Invoice extractionF1 · vision · vs Claude Opus

103%

142×

Document rerankingnDCG@10 · vs Gemini Flash

101%

31×

Contract field extractionF1 · vs GPT-5.5

96%

20×

Source: measured Pareta benchmark runs, July 2026, on the production serving path customers call. Frontier cost = usage tokens × vendor list price; Pareta = actual metered billing. Quality normalized to the strongest frontier model per task. Frontier set: GPT-5.5, Claude Opus 4.7/4.8, Sonnet 4.6, Gemini 3.5 Flash, OpenAI text-embedding-3-large.