AI APIs have quietly become a line item for a lot of small businesses. A customer-service assistant here, a document summariser there, and suddenly the monthly bill is measured in hundreds of dollars — most of it spent on frontier models doing work a cheaper model could handle. The good news is that this is one of the few areas in tech where switching costs are close to zero, and a new wave of services has grown up around exactly that.
The pattern looks like this: instead of holding separate accounts with OpenAI, Anthropic, Google and the rest, you point your code at a single gateway that speaks the OpenAI API dialect — the de facto industry standard. Behind that one endpoint, the service routes your requests to whichever provider and model you ask for, at prices that are often well below list. One recently launched example, CheaperInference, promises access to leading models through one OpenAI-compatible API with savings of up to 60% on inference costs. It is new enough that there is little independent coverage yet, so treat it as an example of the category rather than an endorsement — but the category itself is well established.
Why does this work? Because the OpenAI API format became the lingua franca of the industry. Nearly every model provider and open-source framework speaks it, which means an aggregator only needs to translate at the edges. For you, that means the migration is a one-line change — swap the base URL and API key — and your existing code, SDKs and tooling keep working. That same property is your negotiating leverage: when a better price appears elsewhere, you can act on it in minutes, not weeks.
The real savings, though, come from pairing a gateway with some straightforward habits:
- Route by task, not by default. Most workloads don’t need a frontier model. Classification, extraction, drafting and routing tasks run happily on smaller models that cost a tenth as much. Keep the expensive models for the genuinely hard requests.
- Measure before and after. Run the same real-world prompts across two or three models and compare quality against cost. You will usually find one or two tasks where the premium model earns its price, and several where it does not.
- Cache and batch. Identical requests don’t need to hit the API twice, and most providers offer half-price batch processing for work that isn’t time-critical.
- Watch the context, not just the price. Long documents fed to a “cheap” model with a large context window can cost more than a smart model given a summary. Trim what you send.
There are caveats worth respecting. Your prompts and data pass through a third party, so check the privacy terms before sending anything sensitive — for regulated data, this may rule smaller aggregators out entirely. Latency can differ from going direct. And a very new service deserves a cautious rollout: start with internal, low-stakes workloads, keep an eye on uptime, and keep that one-line switch back to the direct provider ready.
For homelab tinkerers and small businesses alike, this is a rare win-win. The competitive market and the common API dialect mean the cost of experimentation is minutes of your time, and the payoff is a bill that scales with what your workload actually needs rather than what the default model charges. Services like CheaperInference are worth a look — the worst case is you learn where your money was going.