One API.
Every Model.
Zero Limits.
Access GPT-4o, Gemini 2.5 Pro, Llama 3, Mistral, and more — via one unified, OpenAI-compatible inference API.
Built for developers, loved by teams
Everything you need to integrate powerful AI into your applications.
Fault Tolerance
Seamless failover and retry logic built into every API call. Your applications stay online even when individual model endpoints experience issues. Get Started Free →
Complimentary Gemini Pro Access
Unlock exclusive access to Google Gemini Pro inference with our Experienced plan and above — cutting-edge multimodal capabilities at no extra cost. See Plans →
Privacy First: No Logs
Your data is yours alone. We maintain a strict no-logs policy — every API interaction is ephemeral, confidential, and never stored. Get Started Free →
Reimbursement Guarantee
We stand by our reliability. If an API call fails on our end, we'll reimburse your credits accordingly — accountability is our commitment. View Plans →
Flat Monthly Pricing
No hidden fees, no per-token surprises. A simple flat monthly rate gives you unlimited inference — plan your AI costs with full confidence. See Pricing →
Unlimited LLM Inference
Scale without constraints. No rate limits, no throttling, no cap on requests. Innovation shouldn't come with artificial ceilings. Get Started Free →
Up and running in minutes
Three steps to your first AI-powered response
Create your account
Sign up free — no credit card required. Get instant access to the Enthusiast tier with the Qwen2.5-3B model.
Grab your API key
Your unique API key is waiting in your profile dashboard the moment you register. Copy it in one click.
Start building
Drop it into any OpenAI-compatible SDK or HTTP client. Ship your first inference call in under 60 seconds.
OpenAI-compatible API
Drop in your Zenith-AI key — no SDK changes needed
import requests, json
url = "https://inference.zenith-ai.one/v1/chat/completions/stable"
payload = {
"model": "Qwen2.5-3B-Instruct", # or Llama-3.1-8B, GPT-4o, Gemini-2.5-Pro…
"messages": [
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Hello!"}
],
"max_tokens": 1024,
"temperature": 0.7
}
headers = {"Authorization": f"Bearer {YOUR_API_KEY}", "Content-Type": "application/json"}
response = requests.post(url, headers=headers, data=json.dumps(payload))
print(response.json())Supported Models 16+
Our ever-expanding library gives you access to the latest open-source and frontier AI models
Llama-3.2-11B-Vision-Instruct
Qwen2-VL-7B-Instruct
Affordable plans for every need
Transparent, flat monthly pricing. No hidden fees, no per-token surprises.
Enthusiast
- Unlimited Tokens
- One request at a time
- Access Tiny Base Models
- Priority inference
- Fault Tolerance
Amateur
- Unlimited Tokens
- Unlimited Requests
- One request at a time
- Access Tiny & Small Models
- Fault Tolerance
Hobbyist
- Unlimited Tokens
- Unlimited Requests
- Two parallel requests
- Access Tiny, Small & Medium Models
- Fault Tolerance
Experienced
- Unlimited Tokens
- Unlimited Requests
- Two parallel requests
- Access All Models
- Limited Gemini 2.0
- Limited ChatGPT 4o Mini
- Priority Response
Proficient
- Unlimited Tokens
- Unlimited Requests
- Four parallel requests
- Access All Models
- Unlimited Gemini 2.5 Flash
- Unlimited ChatGPT 4o
- Priority Response + Fault Tolerance
Enterprise
- Unlimited Tokens
- Unlimited Requests
- Twenty parallel requests
- Access All Models
- Unlimited Gemini 2.5 Pro
- Unlimited ChatGPT 4o
- Custom model requests*
All paid plans include no hidden fees, reimbursement guarantees, and unlimited LLM inference.