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Face-off

Muse Spark 1.1 vs Claude Sonnet 5.5

Muse Spark 1.1 versus Claude Sonnet 5.5 on list price and published Arena rating. Muse Spark 1.1 Arena 1478 · Claude Sonnet 5.5 Arena 1473 Blended list price Muse Spark 1.1 $3.50 and Claude Sonnet 5.5 $8.00 per 1M tokens.

Muse Spark 1.1MetaArena 1478$3.50 / 1M
Muse Spark 1.1 leads by 6 Arena pointsClaude Sonnet 5.5 costs 2.3x more
Claude Sonnet 5.5AnthropicArena 1473$8.00 / 1M

Muse Spark 1.1

Meta

Input / 1M$1.25Output / 1M$4.25Arena1478Value1511,000 coding edits$5.90

Open model

Claude Sonnet 5.5

Anthropic

Input / 1M$2.00Output / 1M$10.00Arena1473Value1241,000 coding edits$12.00

Open model

Muse Spark 1.1 leads by 6 Arena points. Claude Sonnet 5.5 costs 2.3x more, moving from Muse Spark 1.1 to Claude Sonnet 5.5. The 1,000-edit cost uses a planning assumption of 2,000 input and 800 output tokens, not a measured trace. Share this face-off. The link renders an Open Graph image of the two models.