Multi-model AI content platform

One prompt.
Any model.
Zero hidden costs.

Quillium routes your prompts to OpenAI, Anthropic, or Google AI and shows you exactly what every word costs. No opaque credit systems. No surprise invoices.

Try it free → 5 free credits · no signup
quillium-api
POST /v1/generate
{
  "prompt": "Write a product description for...",
  "model": "auto",
  "max_tokens": 500
}

// Response includes cost breakdown
{
  "content": "Introducing the...",
  "model_used": "claude-4-sonnet",
  "cost": $0.0023,
  "tokens": { "in": 42, "out": 487 }
}

How it works

01

Send a prompt

Type what you need or hit the API. Stories, product copy, emails, code docs, anything.

02

We pick the best model

Set model: "auto" and Quillium routes to the fastest, cheapest model that nails your task. Or choose manually.

03

See what you paid

Every response shows exact token count, model used, and cost in dollars. Not credits. Not "words." Dollars.

Built for people who read the pricing page

↔

Multi-model routing

OpenAI, Anthropic, Google AI, all behind one endpoint. Switch models per request or let Quillium optimize automatically.

$

Transparent billing

See cost-per-request in real time. Usage-based pricing via Stripe. Your invoice matches your usage, always.

{}

API-first

REST API with SDKs for Node, Python, and Go. Build Quillium into your product, your workflow, your pipeline.

⚡

Smart caching

Identical prompts hit cache instead of the API. Same output, zero cost. Automatic, no config required.

AI content generation should be a utility, not a mystery.

You wouldn't pay for electricity without seeing the meter. Quillium treats AI the same way: transparent costs, predictable bills, and the freedom to use any model without vendor lock-in.