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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

Muse Spark 1.3Meta Remove
Claude Opus 5.5Anthropic Remove
S1Fish Audio Remove

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muse-spark-1.3 vs claude-opus-5.5 vs s1
Attribute	Muse Spark 1.3muse-spark-1.3	Claude Opus 5.5claude-opus-5.5	S1s1
Pricing
Input	$1.25 / 1M	$4.00 / 1M	$0 / 1M
Output	$4.25 / 1M	$20.00 / 1M	$0 / 1M
Cache Write (5m)	$1.25 / 1M	$5.00 / 1M	Not applicable
Cache Write (1h)	$1.25 / 1M	$8.00 / 1M	Not applicable
Cache Read	$1.25 / 1M	$0.40 / 1M	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	1M	1M	N/A
Max output	N/A	N/A	N/A
Capabilities
Vision	Yes	Yes	No
Function Calling	Yes	Yes	No
JSON Mode	Yes	Yes	No
Streaming	Yes	Yes	No
Catalogue
Provider	Meta	Anthropic	Fish Audio
Category	chat	chat	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go
Released	—	—	2026-07-29
Description
Summary	Muse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.	Claude Opus 5.5 is Anthropic's flagship model for advanced reasoning, coding, and long-horizon agentic workflows, succeeding Opus 5. It excels at multi-step changes across large codebases, code review and bug detection, financial and scientific analysis, and understanding dense charts, diagrams, and screenshots, with stronger grounding when reporting figures and citing sources. Compared with Opus 5, it completes comparable tasks with fewer steps and lower token usage while providing clearer, more concise progress reporting. With adaptive thinking and configurable effort levels, Opus 5.5 can balance reasoning depth, latency, and cost, making it well suited for both demanding autonomous workflows and latency-sensitive professional tasks.	Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.