Claude Sonnet 5 vs Muse Spark 1.2: side-by-side summary

Claude Sonnet 5 and Muse Spark 1.2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Sonnet 5, from Anthropic, has a 1,000,000-token context window and is priced at $2/M tokens input, $10/M tokens output on OpenRouter.

Muse Spark 1.2, from Meta, has a 1,048,576-token context window and is priced at $1.25/M tokens input, $4.25/M tokens output on OpenRouter.

Context window

• Claude Sonnet 5: 1,000,000 tokens
• Muse Spark 1.2: 1,048,576 tokens

Price

• Claude Sonnet 5: $2/M tokens input, $10/M tokens output
• Muse Spark 1.2: $1.25/M tokens input, $4.25/M tokens output

Provided by

• Claude Sonnet 5: Anthropic
• Muse Spark 1.2: Meta

• Claude Sonnet 5 model details, providers and pricing
• Muse Spark 1.2 model details, providers and pricing