UrielAPI provides a clean OpenAI-compatible /v1/chat/completions endpoint
with multi-provider routing, streaming support, prepaid credit control, and detailed usage analytics.
Requests are routed to currently healthy providers using TTFT-first scoring and failover before stream commitment.
Customers use prepaid credit. Usage is tracked by input, output, short context, long context, and cached input when available.
Use your API key with OpenAI-compatible clients, curl, Open WebUI-style setups, custom applications, or the UrielAPI web chat.
UrielAPI is built for developers looking for a low-latency GPT-5.5 API, a GPT-5.5-compatible API, or an OpenAI-compatible LLM API gateway with streaming chat completions, prepaid billing, provider failover, and transparent customer usage analytics.
UrielAPI uses prepaid credit. Customers add credit first, then usage is deducted by actual input and output token usage. There is no subscription lock-in and no automatic renewal. Unused prepaid credit can be refunded on request, subject to abuse review, payment processor fees, and already-completed usage.
Private beta trial access for developers who want to test latency, streaming reliability, and compatibility before buying more credit.
No subscription. Contact @UrielAPI to activate.
Prepaid API credit for OpenAI-compatible clients, web apps, automations, Open WebUI-style setups, and prototypes.
Credit is deducted by model-specific token pricing.
Each model has its own input and output token price. You only pay for completed usage recorded by the router.
Usage is visible in the customer dashboard.
Larger usage, business accounts, and invoice-based billing can be arranged manually.
Contact @UrielAPI.
| Model | Input price | Output price | Context | Max output |
|---|---|---|---|---|
GPT-5.5gpt-5.5 | $3.50 / 1M | $25.00 / 1M | 256,000 | 16,384 |
GPT-5.4gpt-5.4 | $1.75 / 1M | $12.00 / 1M | 1,000,000 | 16,384 |
GPT-5.4 Minigpt-5.4-mini | $0.50 / 1M | $3.50 / 1M | 256,000 | 16,384 |
Claude Sonnet 4.5claude-sonnet-4-5 | $2.00 / 1M | $12.00 / 1M | 256,000 | 16,384 |
Claude Haiku 4.5claude-haiku-4-5 | $0.60 / 1M | $4.00 / 1M | 256,000 | 16,384 |
Claude Opus 4.7claude-opus-4-7 | $4.00 / 1M | $22.00 / 1M | 256,000 | 16,384 |
Claude Haiku 4.5claude-haiku-4-5-20251001 | $0.60 / 1M | $4.00 / 1M | 256,000 | 16,384 |
Claude Sonnet 4.6claude-sonnet-4-6 | $2.00 / 1M | $12.00 / 1M | 256,000 | 16,384 |
Claude Opus 4.6claude-opus-4-6 | $4.00 / 1M | $22.00 / 1M | 256,000 | 16,384 |
Claude Opus 4.8claude-opus-4-8 | $4.00 / 1M | $22.00 / 1M | 256,000 | 16,384 |
Grok 4.20 Fastgrok-4.20-fast | $0.50 / 1M | $1.50 / 1M | 256,000 | 16,384 |
UrielAPI provides commercially licensed model access through authorized provider relationships. Model availability, routing, context length, and pricing may vary by endpoint and provider configuration.
curl https://api.urielapi.com/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-5.5","messages":[{"role":"user","content":"Say hello"}],"stream":true}'