Flux TTS vs CSM 1B: side-by-side summary

Flux TTS and CSM 1B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Flux TTS, from deepgram, is priced by the provider serving it on OpenRouter.

CSM 1B, from sesame, has a 4,096-token context window and is priced at $7/M characters on OpenRouter.

Context window

• Flux TTS: Not published
• CSM 1B: 4,096 tokens

Price

• Flux TTS: Pricing varies by provider
• CSM 1B: $7/M characters

Provided by

• Flux TTS: deepgram
• CSM 1B: sesame

• Flux TTS model details, providers and pricing
• CSM 1B model details, providers and pricing