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Meta: muse-spark-1.3-contributor

muse-spark-1.3-contributor
1M context131.1K outReasoningToolsParallel toolsVisionAudio inVideoFilesCacheStructuredWeb searchSystem msg
Released Sep 2, 2026Updated Sep 6, 2026

Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows. It is designed to track information across extended tasks, work through conflicting inputs, and request clarification or confirmation when needed. Prompts and outputs may be used to improve Meta’s products.

Mode chatTokenizer OtherReasoning levels minimal, maxModerated

Pricing

Input price
$0.20/ 1M tokens
Output price
$0.40/ 1M tokens
Compatible endpoints openaiVendor Meta

Uptime

Performance

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Usage & Ranking

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Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
include_reasoningAll providers-
max_tokensAll providers-
reasoningAll providers-
reasoning_effortAll providers-
repetition_penaltyAll providers-
response_formatAll providers-
structured_outputsAll providers-
temperatureAll providers-
tool_choiceAll providers-
toolsAll providers-
top_kAll providers-
top_pAll providers-

Frequently asked questions

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