Compare S2 Pro from fish-audio and CSM 1B from sesame on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
S2 Pro and CSM 1B 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.
CSM 1B, from sesame, has a 4,096-token context window and is priced at $7/M characters on OpenRouter.