Grok Voice TTS 1.0 vs Kokoro 82M: side-by-side summary

Grok Voice TTS 1.0 and Kokoro 82M are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Grok Voice TTS 1.0, from SpaceXAI, has a 15,000-token context window and is priced at $15/M characters 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

• Grok Voice TTS 1.0: 15,000 tokens
• Kokoro 82M: 4,096 tokens

Price

• Grok Voice TTS 1.0: $15/M characters
• Kokoro 82M: $0.62/M characters

Provided by

• Grok Voice TTS 1.0: SpaceXAI
• Kokoro 82M: hexgrad

• Grok Voice TTS 1.0 model details, providers and pricing
• Kokoro 82M model details, providers and pricing