AI Fusion is a gateway that unifies free-tier and BYOK access across 5 providers behind a single OpenAI-compatible API. Drop in, route intelligently, stay under quota.
Three things every serious gateway needs. Nothing else in the way.
Atomic key allocation in Redis. Automatic fallback across providers and cooldown on rate-limit responses. You see one endpoint; the gateway does the rest.
Per-tenant RPM, monthly request and token caps. Every call is priced against retail rates so you know what you'd have paid elsewhere.
Point any OpenAI SDK at /v1. Anthropic and Gemini-native surfaces ship too. Live progress streaming via SSE when you want it.
If it talks to OpenAI, it talks to AI Fusion.
from openai import OpenAI
client = OpenAI(
base_url="https://ai.viktorarsov.com/v1",
api_key="afp_live_…",
)
resp = client.chat.completions.create(
model="gateway:fast-free",
messages=[{"role": "user", "content": "Hello, fusion."}],
)Records-only billing. Free tier never expires.
Free
Perfect for personal projects and getting started.
$0/ mo
Starter
For developers building real applications.
$10/ mo
Pro
For production workloads requiring scale.
$50/ mo