June 12, 20261 min readAPIWorkflowOpenAI-compatible

One API for every AI model — why you shouldn't juggle five providers

If you build with LLMs, you've felt this: an OpenAI account, an Anthropic account, a Google Cloud project, three dashboards, three invoices, three sets of rate limits — and a different SDK for each.

The cost of provider sprawl

  • Keys everywhere. Every provider means another secret to rotate and leak.
  • Five bills. Reconciling spend across vendors is nobody's favourite Friday.
  • Lock-in by accident. When switching models means rewriting integration code, you stop switching — even when a cheaper or better model ships.

One endpoint, every model

An OpenAI-compatible gateway flips this. You point your existing OpenAI SDK at one base URL with one key, and change the model field to reach GPT, Claude, Gemini, DeepSeek and more:

curl https://anymodel.org/v1/chat/completions \
  -H "Authorization: Bearer $ANYMODEL_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "claude-sonnet-4-6", "messages": [{"role":"user","content":"Hi"}] }'

Want GPT instead? Change "claude-sonnet-4-6" to "gpt-5.2". That's the whole migration.

Pay per token, no subscriptions

Because billing is unified and per-token, you top up once and draw down across every model. No monthly seat you forgot to cancel.

Browse the model catalog to see what's available and check current model availability before you build.

Read next