Billing & Cost
Amplifier pricing is based on audio tokens. Charges are flat per call — audio duration does not affect cost.
When charges apply
Billing is tied to processing, not to whether every signal comes back decisive. Once the API has analyzed your audio, that usage counts regardless of signal outcome or audio_quality flags—decisive, inconclusive, and quality-flagged responses all reflect completed compute.
Token rates
| API call | Tokens | With diarization |
|---|---|---|
Model API (/v2/models/{model_name}/analyze) | 75 | 125 |
Sign API (/v2/signs/{sign_name}/analyze) | 50 | 100 |
The diarization add-on costs a flat +50 tokens on top of the base rate. Audio duration has no effect on token consumption.
Example calculations
| Scenario | Tokens | Cost |
|---|---|---|
apex model bundle, no diarization | 75 | $0.15 |
stress sign, no diarization | 50 | $0.10 |
apex model bundle + diarization | 125 | $0.25 |
| Sign API + diarization | 100 | $0.20 |
Token price: $0.002 per token ($10 = 5,000 tokens).
For diarization, add a flat 50 tokens to the base rate regardless of audio length. See Speaker diarization in Audio Requirements.