Now serving 200+ AI models from one endpoint

One API for every
AI model that matters

Access GPT-4o, Claude, Gemini, Llama, Mistral, and 200+ more through a single OpenAI-compatible endpoint. Switch models without changing your code.

Start for free View the docs
quickstart.py
from openai import OpenAI

# Just swap the base_url — your code stays the same
client = OpenAI(
    base_url="https://api.aiogateway.io/v1",
    api_key="sk-aio-...",
)

response = client.chat.completions.create(
    model="anthropic/claude-opus-4-5",  # or any model
    messages=[{"role": "user", "content": "Hello!"}],
)

print(response.choices[0].message.content)
200+
AI Models
99.9%
Uptime SLA
<50ms
Avg. Overhead
0
Vendor Lock-in
Supported providers & models

Everything you need, nothing you don't

Built for developers who want production-grade AI routing without the ops overhead.

01
Smart Fallbacks
Define fallback chains so your app stays up even when a provider has an outage. Automatic retries with configurable backoff.
02
Load Balancing
Distribute requests across providers and API keys to maximize throughput and stay under rate limits automatically.
03
Cost Controls
Set per-user, per-team, or global spend limits. Get real-time token cost estimates before each request.
04
OpenAI Compatible
Drop-in replacement — just change your base_url. Supports chat completions, embeddings, and streaming out of the box.
05
Observability
Request logs, latency histograms, token usage dashboards, and cost breakdowns — all in one place.
06
Semantic Caching
Cache LLM responses by semantic similarity to slash costs and latency for repeated or near-duplicate queries.

Top models, pay-per-token

Access frontier models at market rates — we pass provider pricing directly through.

Model Provider Context Input Output
gpt-4o OpenAI 128k $2.50/M $10.00/M Vision
claude-opus-4-5 Anthropic 200k $15.00/M $75.00/M Vision
gemini-2.0-flash Google 1M $0.10/M $0.40/M Fast
mistral-large-2 Mistral 128k $2.00/M $6.00/M
llama-3.3-70b Meta 128k $0.59/M $0.79/M Open
gpt-4o-mini OpenAI 128k $0.15/M $0.60/M Fast
claude-haiku-4-5 Anthropic 200k $0.80/M $4.00/M Fast

+ 190 more models  ·  View full catalog

Up and running in minutes

STEP 01
Create an account
Sign up free — no credit card required to start. $5 of free credits included.
STEP 02
Grab your API key
Generate a key from your dashboard. Scope it to specific models or providers if needed.
STEP 03
Swap your base URL
Point your existing OpenAI SDK to api.aiogateway.io/v1. Done.
STEP 04
Ship in production
Monitor costs, set budgets, configure fallbacks — all from the dashboard.

Simple, transparent pricing

We charge a small gateway fee on top of provider costs. No hidden fees, no subscriptions required.

Hobby
Free
$5 free credits · No card needed
  • All 200+ models
  • 5% gateway markup
  • Community support
  • Basic analytics
Get started
Enterprise
Custom
Volume discounts & SLAs
  • Everything in Pro
  • 1–2% markup negotiable
  • Dedicated infrastructure
  • Custom rate limits
  • 99.99% SLA
  • Slack + dedicated support
Talk to us

Start building with any AI,
today.

No lock-in. No contracts. Switch models in one line of code.

Get your free API key Read the docs