GPT-5.5 API — Unified Access via 97AI.PRO
Access the GPT-5.5 API by OpenAI through 97AI.PRO's unified endpoint. One API key, transparent pricing at $0.147 per per million tokens — 71% below OpenAI's official rate, and failed calls are free (zero-risk billing).
Quick start
Send a POST to https://www.lithovas.com/api/chat with an Authorization: Bearer sk-live-... header. Set model: "chat/gpt-5-5" and provide the payload for this model type.
Example (curl):
curl -X POST https://www.lithovas.com/api/chat \
-H "Authorization: Bearer $YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"chat/gpt-5-5","messages":[{"role":"user","content":"Hello"}]}'
What you get back
Chat endpoints return { text, credits, balance } synchronously.
Rate limits & billing
Per-account concurrency is generous for individual use; enterprise tiers are available. Credits are deducted only for successful chat completions. Balance is visible via GET /api/credits. Payment methods: credit card, USDC on Arbitrum, Alipay.
Frequently asked questions
Is the GPT-5.5 API on 97AI.PRO the same as the official OpenAI API?+
Yes — same underlying model family and production behavior. 97AI.PRO routes through verified upstream infrastructure, and pricing is 71% below OpenAI's official rate. Payment is available globally including in regions where OpenAI does not ship directly.
Do I need a OpenAI account?+
No. One 97AI.PRO account and API key gives you access to GPT-5.5 plus 173 other models across providers.
What SDKs are supported?+
For chat endpoints, the OpenAI SDK works out of the box by pointing `base_url` to `https://www.lithovas.com/api`. Any HTTP client also works.
How do I test before going to production?+
Sign up, add $5 in credits, and hit the endpoint from your terminal. There's no long-form onboarding or contract.
What if a chat completion fails?+
You pay $0. Failed requests return an error response or terminal failure state, and credits are refunded automatically. This is the zero-risk billing policy.
Ready to try GPT-5.5?
Sign up on 97AI.PRO, top up with credit card / USDC / Alipay, and get an API key in under 60 seconds.