Speech-to-Text API Pricing & Credit Rates

Transparent, pay-per-second usage billing for speech recognition, automated transcription, and real-time streaming audio.

Credit Consumption Rates

YourVoic Speech-to-Text uses a transparent credit model. You only pay for the exact audio duration processed, measured down to the second.

Batch Processing Billing Mechanics

• Exact duration accounting: A 47-second audio file on cipher-fast costs exactly 94 credits (47s × 2 credits/s). We never round up to arbitrary 15-second or 1-minute blocks.
• Included features: Speaker diarization, punctuation, casing, smart number formatting, and word timestamps are included at zero extra charge.
• Failed job guarantee: If an audio file cannot be decoded or encounters a worker fault, credits are automatically refunded to your balance instantly.

Real-time Streaming Session Billing

• Startup balance: A minimum balance of 60 credits is required to initiate a WebSocket session.
• Continuous verification: Active balance is validated every 30 seconds during an ongoing call.
• Graceful disconnect: If credits deplete during a session, the server flushes final transcripts before closing the socket.

Programmatic Credit & Balance Checking

Developers can monitor remaining credits programmatically before queuing high-volume batches using the Account Info API or by inspecting response headers.

1. Check Account Balance (Python)

import requests

url = "https://yourvoic.com/api/v1/user/credits"
headers = {"X-API-Key": "YOUR_API_KEY"}

response = requests.get(url, headers=headers)
data = response.json()

if response.status_code == 200:
    balance = data["credits"]["remaining"]
    print(f"Available credits: {balance:,}")
    # Estimate minutes available for cipher-fast (120 credits/min)
    available_minutes = balance // 120
    print(f"Estimated transcription time: {available_minutes} minutes")
else:
    print(f"Error checking balance: {data.get('message')}")

2. Check Balance via cURL

curl -X GET "https://yourvoic.com/api/v1/user/credits" \
  -H "X-API-Key: YOUR_API_KEY"

3. Account Credits Response JSON (200 OK)

{
  "success": true,
  "account_id": "usr_78a1bc40d29",
  "plan": "developer_pro",
  "status": "active",
  "credits": {
    "total_monthly_allowance": 500000,
    "consumed_this_cycle": 142800,
    "remaining": 357200,
    "bonus_credits": 5000
  },
  "billing_cycle": {
    "started_at": "2026-10-01T00:00:00Z",
    "renews_at": "2026-11-01T00:00:00Z"
  },
  "concurrency_limit": 10
}

Response Headers for Real-time Accounting

Every batch transcription response returns audit headers allowing your application to log usage without separate balance queries:

HTTP/1.1 200 OK
Content-Type: application/json
X-Audio-Duration: 42.8
X-Credits-Used: 86
X-Credits-Remaining: 357114
X-RateLimit-Limit: 120
X-RateLimit-Remaining: 119

Real-World Cost Estimation Scenarios

Frequently Asked Questions (FAQ)

Enterprise Solutions

For organizations processing over 1,000 hours of speech per month, custom enterprise packages offer dedicated GPU workers, on-premise deployment options, HIPAA/GDPR business associate agreements, and custom acoustic model tuning.