Meta: Muse Spark 1.3 Contributor
meta/muse-spark-1.3-contributor · MetaUnmeasurable- Declared family
- Unknown
- Entered catalogue
- 2 September 2026
- Measurement
- Unavailable: the endpoint did not answer
- Evidence confidence
- Unknown
What we checked
Four different kinds of evidence, and what each one showed| We checked | What we found | Where it came from |
|---|---|---|
| How it counts tokens | Not measured yet | we measured it |
| How its API is set up | Set up identically to 1 other listing, field for field | api_ed0a435a |
| How much it can read and write | Reads up to 1,048,576 tokens at onceOpenRouter's listing shows 943,718 output tokens, which is 90% of the context window, the figure it carries where the provider declares no maximum. | its own listing |
| Whether it thinks before answering | Always reasons, and cannot be turned off, at max, xhigh, high, medium, low, minimal, medium by default | its own listing |
Declared record
What the catalogue claims about this modelMuse 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...
- Modalities
- text+image+file+video->text
- Declared tokenizer
- Other
- Prompt price
- $0.10 / M tokens
- Completion price
- $0.20 / M tokens
Supported parameters
include_reasoningmax_tokensreasoningreasoning_effortrepetition_penaltyresponse_formatstructured_outputstemperaturetool_choicetoolstop_ktop_p
defaults: {}
History
Every observation, kept as taken- 2 September 2026Enters the OpenRouter catalogue with no declared family.
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