Zero Completion Insurance

Automatic protection against empty or failed generation billing

If a request returns no completion tokens with a null finish reason, or exits with an error finish state, TheRouter.ai applies zero completion protection so you are not charged for unusable output.

activity-protected-example.json

{
  "id": "chatcmpl_abc123",
  "usage": {
    "prompt_tokens": 812,
    "completion_tokens": 0,
    "total_tokens": 812
  },
  "choices": [{ "finish_reason": null }],
  "billing": {
    "charged": false,
    "reason": "zero_completion_insurance"
  }
}

Retry pattern

async function guardedCompletion(payload: unknown) {
  const res = await client.chat.completions.create(payload as never);
  const usage = res.usage;
  const finish = res.choices[0]?.finish_reason;

  if ((usage?.completion_tokens ?? 0) === 0 || finish === "error") {
    return client.chat.completions.create(payload as never);
  }

  return res;
}

No setup required

Zero completion insurance is enabled by default for every account and provider route. You can still add client-side retries for better UX on transient failures.