Mercury 2.5 Preview vs Muse Spark 1.2: side-by-side summary

Mercury 2.5 Preview 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.

Mercury 2.5 Preview, from inception, has a 260,000-token context window and is priced at $0.04/M tokens input, $0.15/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

• Mercury 2.5 Preview: 260,000 tokens
• Muse Spark 1.2: 1,048,576 tokens

Price

• Mercury 2.5 Preview: $0.04/M tokens input, $0.15/M tokens output
• Muse Spark 1.2: $1.25/M tokens input, $4.25/M tokens output

Provided by

• Mercury 2.5 Preview: inception
• Muse Spark 1.2: Meta

• Mercury 2.5 Preview model details, providers and pricing
• Muse Spark 1.2 model details, providers and pricing