Meta: Muse Spark 1.2

Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks.

Context
1.0M
Max output
944K
Input price
$1.25/1M tokens
Output price
$4.25/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDmeta/muse-spark-1.2
Provider OpenRouter
Creator Meta Llama
Family—
License—
Status—
Type—
Input modalitiestext, image, video
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output944K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$1.25
Output
$4.25
Cache write
—
Cache read
$0.15
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/meta/muse-spark-1.2

Meta: Muse Spark 1.2

meta/muse-spark-1.2

Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks.

Changes · 3 entries
meta/muse-spark-1.2createca7a400Nov 2, 2026, 03:02 AM
meta/muse-spark-1.2updatee3d7dedAug 31, 2026, 04:13 AM
max_output_tokens943718
meta/muse-spark-1.2create3cddff5Aug 13, 2026, 02:54 AM