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Premium LLM API. Flat fee. No surprises.

One API.
Every model.
Flat fee.
Zero limits.

The premium LLM API for builders who scale. One flat monthly fee. Unlimited requests. Access the best models. Build without barriers.

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Trusted by developers at

  • Lindy
  • durable
  • RAYCAST
  • Harpa
  • snaplet

Unlimited requests

No limits. No overages. Just build.

All top models

GPT-4o, Claude 3.5, Llama 3, and more.

Blazing fast

Low latency. High throughput.

EU hosted

GDPR compliant. Privacy first.

Flat fee

One plan. Everything included.

curl https://api.flatfee.one/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [{ "role": "user", "content": "Explain quantum
    computing in simple terms." }]
  }'

Simple to start. Powerful to scale.

Built for developers

Clean API. Clear docs. Real-time insights. Everything you need to move fast.

Explore the docs

One plan. Everything you need.

Pay once. Build anything.

No hidden costs. No tiered limits. Just pure building power.

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Flat fee

49 /month
EU

Proudly European

Hosted in the EU. Your data stays in the EU.

99.99% uptime

Reliable infrastructure. Built for scale.

Loved by builders

We developers. Join our community.