Speech 2.8 HD vs CSM 1B: side-by-side summary

Speech 2.8 HD and CSM 1B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Speech 2.8 HD, from MiniMax, is priced at $100/M characters on OpenRouter.

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

Context window

• Speech 2.8 HD: Not published
• CSM 1B: 4,096 tokens

Price

• Speech 2.8 HD: $100/M characters
• CSM 1B: $7/M characters

Provided by

• Speech 2.8 HD: MiniMax
• CSM 1B: sesame

• Speech 2.8 HD model details, providers and pricing
• CSM 1B model details, providers and pricing