If you need to narrate text to audio, there are a number of great sounding services which provide APIs. Many have generous free tiers! See below for a comparison:
Summary
| Service & Quality | Cost to Narrate The Sorcerer's Stone | Cost to Narrate the Harry Potter Series | Sample |
|---|---|---|---|
| OpenAI (Standard) | $6.75 | $100.50 | |
| OpenAI (HD) | $13.50 | $201.00 | Audio |
| ElevenLabs (HD) | $13.20 | $200.70 | Audio |
| Google Cloud (Standard) | Free | $10.80 | |
| Google Cloud (Neural) | Free | $91.20 | Audio |
| Google Cloud (Studio) | $56.00 | $1,056.00 | Audio |
| Amazon Polly (Standard) | Free | $2.28 | Audio |
| Amazon Polly (Neural) | Free | $9.12 | Audio |
| Amazon Polly (Long-form) | Free | $62.00 | Audio |
The Sorcerer's Stone is 450,000 characters and the Harry Potter series is 6,700,000 characters.
Pricing plans per service
OpenAI
Standard: $0.015 / 1K characters
HD: $0.030 / 1K characters
https://openai.com/pricing
ElevenLabs
HD: $.030 / 1K characters (first 10,000 are free)
Note: Pricing scales down to $.017 in higher tiers.
https://elevenlabs.io/pricing
Google Cloud
Standard: $0.004 / 1K characters (first 4,000,000 are free)
Neural: $0.016 / 1K characters (first 1,000,000 are free)
Long-form: $0.16 / 1K characters (first 100,000 are free)
https://cloud.google.com/text-to-speech/pricing
Amazon Polly
Standard: $0.0004 / 1K characters (first 5,000,000 are free)
Neural: $0.0016 / 1K characters (first 1,000,000 are free)
Long-form: $0.01 / 1K characters (first 500,000 are free)
https://aws.amazon.com/polly/pricing/
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