Which is cheaper, Seedance 1.5 Pro or Sonic 3.6?
Neither Seedance 1.5 Pro nor Sonic 3.6 has a public Avg Price in this index yet, so we cannot name a cheaper text-to-speech API from list rates alone.
Seedance 1.5 Pro vs Sonic 3.6
ComparisonCompare Avg Price, Text to Speech, license, and release date. Search any text-to-speech model with the pickers below.
Seedance 1.5 Pro
ByteDance
N/A
Sonic 3.6
Cartesia
N/A
Metric
Seedance 1.5 Pro
Sonic 3.6
Avg Price
N/A
N/A
Text to Speech
1.4K
N/A
Text to Speech win rate
12.5%
N/A
Release date
2025-12-01
2026-08-17
License
Proprietary
Proprietary
Provider
ByteDance
Cartesia
Seedance 1.5 Pro vs Sonic 3.6 FAQ
Which ranks higher, Seedance 1.5 Pro or Sonic 3.6?
Seedance 1.5 Pro currently leads on Text to Speech: 1.4K for Seedance 1.5 Pro vs N/A for Sonic 3.6. Rank and price move independently, so the cheaper text-to-speech model is not automatically the weaker one.
Is Seedance 1.5 Pro or Sonic 3.6 open source?
Seedance 1.5 Pro is proprietary (Proprietary). Sonic 3.6 is proprietary (Proprietary). Open-weight models can be self-hosted; proprietary ones are billed only through the provider API on this page.
How do I switch the models in this Seedance 1.5 Pro vs Sonic 3.6 comparison?
Use the model pickers at the top of this page. Search any text-to-speech model in the index and the URL updates to a new comparison, the same way LLM comparison pages work. Open either model from the sidebar for the single-model Avg Price page.
What data is used for Seedance 1.5 Pro vs Sonic 3.6?
This comparison uses public llm-stats and ZeroEval arena data for text-to-speech models, then normalizes Avg Price, Text to Speech, license, and release date inside AnotherWrapper. Treat the numbers as comparable public list rates, not a quote from either vendor.
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