API Reference
TTS Voice Detail
One voice, its measured quality labels, and the benchmarks of the model it runs on.
Authorization
bearerAuth AuthorizationBearer <token>
In: header
Path Parameters
vendor*string
voiceId*string
Case-sensitive, exactly as the provider spells it.
Response Body
application/json
application/json
{
"id": "cartesia:f9836c6e-a0bd-460e-9d3c-f7299fa60f94",
"vendor": "string",
"voice_id": "string",
"name": "string",
"gender": "string",
"accent": "string",
"languages": [
"string"
],
"styles": [
"string"
],
"use_with": {
"provider": "string",
"model": "string",
"voice": "string"
},
"model_id": "string",
"voice_compatibility": "verified",
"quality": {
"verdict": "measured",
"basis": "string",
"labels": [
"string"
],
"summary": [
"string"
],
"max_chars_per_call": 0,
"words_per_minute": 0
},
"why": {
"best_for": [
"string"
],
"strengths": [
"string"
],
"weaknesses": [
"string"
],
"tradeoffs": [
"string"
]
},
"model": {
"id": "cartesia:sonic-3.5",
"provider": "string",
"model": "string",
"routable": true,
"routable_via": "platform_key",
"benchmark": {
"language": "string",
"board": "string",
"naturalness": {
"value": 0,
"unit": "string",
"higher_is_better": true,
"board": "string",
"ci": [
0
],
"n": 0,
"basis": "string",
"unjudgeable": 0,
"field_mean": 0,
"comparable_across_languages": true,
"estimated": true
},
"robustness": {
"value": 0,
"unit": "string",
"higher_is_better": true,
"board": "string",
"ci": [
0
],
"n": 0,
"basis": "string",
"unjudgeable": 0,
"field_mean": 0,
"comparable_across_languages": true,
"estimated": true
},
"panel_mos": {
"value": 0,
"unit": "string",
"higher_is_better": true,
"board": "string",
"ci": [
0
],
"n": 0,
"basis": "string",
"unjudgeable": 0,
"field_mean": 0,
"comparable_across_languages": true,
"estimated": true
},
"panel_named_pct": {
"value": 0,
"unit": "string",
"higher_is_better": true,
"board": "string",
"ci": [
0
],
"n": 0,
"basis": "string",
"unjudgeable": 0,
"field_mean": 0,
"comparable_across_languages": true,
"estimated": true
},
"latency_ms": 0,
"latency_evidence": {
"board": "string",
"region": "string",
"n": 0,
"p90_ms": 0
},
"latency": {
"vendor_direct": [
{
"region": "string",
"location": "string",
"p50_ms": 0,
"p90_ms": 0
}
],
"per_language": [
{
"language": "string",
"p50": 0,
"p90": 0,
"n": 0,
"sweeps": 0,
"wide_tail": true,
"voice": "string"
}
]
},
"cost": {
"per_1m_chars_usd": 0,
"per_min_usd": 0,
"higher_is_better": true
}
},
"languages": {
"measured": [
"string"
],
"vendor_claimed": [
"string"
],
"count": 0
},
"voices": {
"total": 0,
"measured": 0,
"compatibility": "verified"
}
},
"meta": {
"benchmark": {
"schema": 0,
"routing_policy_version": "string"
},
"quality_overlay": {
"generated_at": "string",
"run_id": "string"
},
"org_routable_vendors": [
"string"
],
"coverage": {
"models_routable": 0,
"models_measured": 0,
"voices_routable": 0,
"voices_measured": 0
},
"notes": [
"string"
]
}
}{
"error": "Unauthorized",
"code": "UNAUTHORIZED"
}Empty