Muse Spark 1.3 Free

Name: Muse Spark 1.3 Free
Brand: meta
SKU: meta/muse-spark-1.3-contributor-free

meta·meta/muse-spark-1.3-contributor-free·GA·Closed·muse-free series·NEW

Muse Spark 1.3 is a multimodal reasoning model from Meta for coding and agentic workflows.

Specs & pricing

Input / output per 1M tokens

Reference priceOpenCode Zen

$0 / $0

Blended $0 · Cache read $0

Lowest paid

No paid channels

1 more $0 channels

Context

1,048,576

Output limit

131,072

Knowledge cutoff

—

Released / updated

2026-09-02 / 2026-09-02

Capabilities

✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments

Modalities

TextImageVideoPDFAudio

Available at 1 providers0 with public prices · 1 free

Priced only

Provider	Tier	Input	Output	Cache read	Cache write	Context	Output limit	Status
OpenCode Zen	Gateway	Free		$0	—	1,048,576	131,072

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = minimaleffort = loweffort = mediumeffort = higheffort = xhigh

Your usage cost

Input tokens / month

Output tokens / month

Cache hit rate

Common scenarios

This model is $0 across all listed channels (OpenCode Zen).

Price historyone sample accumulated per data sync

Input list $0Output list $0Min blended —

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-20). Each future sync adds a point, and once accumulated a line is drawn here.