Claude Opus 5.5 vs Muse Spark 1.3 pricing

Prices

Claude Opus 5.5 and Muse Spark 1.3 prices, USD per 1M tokens
USD per 1M tokensClaude Opus 5.5Muse Spark 1.3
Input$4.00$1.25
Output$20.00$4.25
Cache read$0.20$0.15
Cache write$5.00Not published
Batch input$2.00Not published
Batch output$10.00Not published

Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page

Meta's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

Monthly cost by workload

WorkloadClaude Opus 5.5Muse Spark 1.3
Chatbot1,000 in / 500 out tokens, 10,000 requests a day$4,200/mo$1,013/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day$6,300/mo$1,819/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input$2,640/mo$810.00/mo

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Context and capabilities

Claude Opus 5.5Muse Spark 1.3
Context1,000,000 tokens1,048,576 tokens
Max output128,000 tokens131,072 tokens
Inputtext, image, pdftext, image, video, pdf, audio
Tool callingYesYes
ReasoningYesYes
Structured outputsYesYes

Questions

What is the price difference between Claude Opus 5.5 and Muse Spark 1.3?
Claude Opus 5.5: $4.00 per 1M input tokens and $20.00 per 1M output tokens. Muse Spark 1.3: $1.25 per 1M input tokens and $4.25 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $4,200 per month for Claude Opus 5.5 and $1,013 for Muse Spark 1.3.
Which has the longer context window, Claude Opus 5.5 or Muse Spark 1.3?
Muse Spark 1.3 has the longer context window: up to 1,048,576 tokens, compared with 1,000,000 for Claude Opus 5.5.
Do Claude Opus 5.5 and Muse Spark 1.3 have prompt caching and batch prices?
Claude Opus 5.5: cached input $0.20 per 1M tokens; batch $2.00 per 1M input tokens and $10.00 per 1M output tokens. Muse Spark 1.3: cached input $0.15 per 1M tokens; no batch price published.

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