One API Key, Every Major Model

Shipping with AI used to mean picking one vendor and hoping they never go down, never raise prices, and always ship the best model. That trade-off is gone. This post walks through how a single, OpenAI-compatible endpoint lets you reach flagship models from every major provider — without rewriting your integration each time the landscape shifts.

One endpoint, every model

You keep the SDK you already use. Point the base URL at the gateway, drop in a single key, and the same request shape works across chat, vision, and multimodal models from different providers. No per-vendor SDKs, no bespoke auth flows, no glue code to maintain.

curl https://openfluxhub.com/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4.8",
    "messages": [{"role": "user", "content": "Summarize our Q3 roadmap."}]
  }'

Swap model to any other supported model and the rest stays identical.

Routing and fallback, built in

Providers have outages. Regions get congested. When one upstream degrades, the gateway can fall back to an alternative so your users never see the failure. Requests are routed close to the edge to keep latency low, and you get a single, consistent view of usage instead of a dozen scattered dashboards.

Cost and control in one place

Unified billing means every call — regardless of which provider served it — lands on one invoice with one set of usage metrics. That makes it trivial to compare price and performance across models, set budgets, and move traffic to whatever gives you the best result per dollar today.

Why it matters

The model you reach for this quarter may not be the one you reach for next quarter. Decoupling your product from any single vendor turns "migrating providers" from a project into a config change. You ship faster, stay resilient, and always have the option to use the best model available.

Ready to try it? Create a key and make your first call in under a minute.