S2 Pro vs Kokoro 82M: side-by-side summary

S2 Pro and Kokoro 82M are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

S2 Pro, from fish-audio, is priced at $15/M UTF-8 bytes on OpenRouter.

Kokoro 82M, from hexgrad, has a 4,096-token context window and is priced at $0.62/M characters on OpenRouter.

Context window

• S2 Pro: Not published
• Kokoro 82M: 4,096 tokens

Price

• S2 Pro: $15/M UTF-8 bytes
• Kokoro 82M: $0.62/M characters

Provided by

• S2 Pro: fish-audio
• Kokoro 82M: hexgrad

• S2 Pro model details, providers and pricing
• Kokoro 82M model details, providers and pricing