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Claude Sonnet 5 vs Muse Spark Open
2026 Stored listed rates & illustrative token-cost comparison
Illustrative Listed-Rate Difference
Muse Spark Open about 48% lower
1M input + 200K output tokens; not a monthly bill
📌 Executive Summary (TL;DR):Under a standard baseline of 1M input + 200K output tokens, Muse Spark Open lists approximately 48% lower than Claude Sonnet 5. For high-throughput production workloads, Muse Spark Open delivers superior unit economics; model your specific monthly workload below before migrating.(Price records last updated 2026-10-22 (UTC))
💡 10M Monthly Token Workload Simulation
Simulating a production workload (10M input + 2M output tokens): Claude Sonnet 5 listed rate totals ~$40.00, while Muse Spark Open totals ~$21.00. Switching to Muse Spark Open yields ~$19.00/mo in raw token savings.
Metric
Claude Sonnet 5 (Anthropic)
Muse Spark Open (openrouter)
Input listed rate
$2.00 / 1M Tokens
$1.25 / 1M Tokens
Output listed rate
$10.00 / 1M Tokens
$4.25 / 1M Tokens
Cached Input rate
$0.20 / 1M Tokens
$0.15 / 1M Tokens
Context Window
1000K Tokens
1049K Tokens
Modality
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