ZenInfer Gateway · ZenInfer Router

One endpoint.
Every LLM.

ZenInfer – Unified LLM API & Model Router

Access leading AI models through one simple, reliable API.

Start building Learn more
# One base URL, any model
curl https://api.zeninfer.com/v1/chat/completions \
  -H "Authorization: Bearer $ZENINFER_KEY" \
  -d '{"model":"auto","messages":[{"role":"user","content":"Hello"}]}'

Four reasons to switch

A single integration surface for the models you already use, with the reliability your product needs.

🔗

Unified API

One OpenAI-compatible endpoint for every provider. Swap models by changing a string, not your integration.

🧭

Smart Routing

Route each request to the best available model based on latency, capability and cost.

🛡️

Automatic Failover

If a provider or model is unavailable, requests reroute automatically — no dropped traffic.

📊

Usage-Based Billing

One consolidated bill. Pay only for the tokens you consume, with clear per-provider breakdowns.

Three steps to production

01

Create an API key

Sign up and generate a single key that works across every supported model.

02

Connect your providers

Bring your own provider keys, or route through configured upstream channels.

03

Ship and scale

Point your app at one base URL and let routing, failover and billing run themselves.

Transparent, metered pricing

No subscriptions, no platform markups hidden in the fine print. You pay for the tokens you use.

Pay as you go
$0/mo minimum
  • Token-based billing on actual usage
  • No long-term commitment
  • Detailed per-model analytics
Enterprise
Custom
  • Dedicated capacity and SLA
  • Volume pricing
  • Priority support
Model availability depends on the providers connected to your account. We list only models we are authorized to serve — we never advertise “unlimited”, “official” or discount claims we cannot honor. Pricing is usage-based and shown transparently at checkout.