Muse Spark 1.2 API

Meta's Muse Spark 1.2: multimodal chat model with 1M-token context, vision input, reasoning and tool calling.

Modalities
Image, TextText
In / Out price
$1.32/$4.5per 1M
Context window
1.05M tokens
Released
Aug 5, 2026

Muse Spark 1.2 overview

The pelican test: one prompt, every text model, unedited SVG output from Nov 3, 2026.

SVG of a pelican riding a bicycle, written by Muse Spark 1.2 through AI/ML API

Muse Spark 1.2 by Meta

Muse Spark 1.2 is a multimodal chat model from Meta for text and image inputs, combining vision, reasoning and tool use for long-context tasks.

Muse Spark 1.2 specs

Model ID
meta/muse-spark-1.2
Developer
Meta
Context window
1,048,576 tokens
Input
Image, Text
Output
Text
API
OpenAI-compatible, base URL https://api.aimlapi.com/v1

What is Muse Spark 1.2?

Muse Spark 1.2 is a multimodal chat model from Meta, accepting text and image input and returning text output. It supports a 1,048,576-token context window, suitable for long documents, codebases and multi-turn conversations that need to retain a large amount of context.

Capabilities

The model supports reasoning, streaming responses, structured outputs, function/tool calling, vision (image understanding), file input and web search, making it suitable for agentic and research-oriented applications.

Use cases

Muse Spark 1.2 is documented as suited for real coding workflows, including code generation, complex debugging, codebase understanding, and end-to-end developer workflows.

It is also documented as suited for long-running tasks that can run start to finish in one session.

The model is documented for multimodal tasks, including turning visuals into working code and translating perception into physical action.

It is also documented for robust audio-visual understanding, including video-heavy workflows common in real-world enterprise use.

Capabilities

  • Reasoning
  • Streaming
  • Structured outputs
  • Function calling
  • Vision
  • Web search

Muse Spark 1.2 benchmarks by Artificial Analysis

See how Muse Spark 1.2 compares in generation speed and latency. Data retrieved Nov 3, 2026.

Speed

Output tokens / second

Benchmark results

Compare 6 models available on AI/ML API across 5 independent benchmarks.

Humanity's Last Exam

Expert-written questions across academic subjects.

Muse Spark 1.2 API pricing

Muse Spark 1.2 pricing in US dollars
UsagePriceUnit
Input$1.321M tokens
Output$4.51M tokens
Cached input$0.15871M tokens

Prices from the AI/ML API price list, checked on Nov 4, 2026.

Muse Spark 1.2 vs other models: token prices

AI/ML API input and output rates for 5 models, per million tokens.

AI/ML API model prices in USD per million tokens
ModelInputOutput
Muse Spark 1.2$1.32$4.5
Muse Glimmer 30B$0.3703$1.59
Muse Spark Open$1.32$4.5
Muse Spark 1.3$1.32$4.5
Muse Wonder$4.23$21.16

How to use the Muse Spark 1.2 API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "meta/muse-spark-1.2",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'

Related articles

All posts

Muse Spark 1.2 FAQ

What is the context window of Muse Spark 1.2?

Muse Spark 1.2 has a 1,048,576 tokens context window.

What inputs and outputs does Muse Spark 1.2 support?

Muse Spark 1.2 takes image, text as input and returns text.

What is the model ID for Muse Spark 1.2?

Use meta/muse-spark-1.2 as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

When was Muse Spark 1.2 released?

Muse Spark 1.2 became available on August 5, 2026.

How much does Muse Spark 1.2 cost?

Muse Spark 1.2 costs $1.32 input and $4.5 output per 1M tokens on AI/ML API, billed as you go with no subscription.

Does Muse Spark 1.2 support streaming?

Yes, Muse Spark 1.2 can stream responses as they are generated.

Can Muse Spark 1.2 read images?

Yes, Muse Spark 1.2 accepts image input alongside text.

Who created Muse Spark 1.2?

Muse Spark 1.2 was built by Meta.

Does Muse Spark 1.2 support tool calling for coding or automation workflows?

Yes, it supports tool calling, including parallel tool calls and function calling.

Can Muse Spark 1.2 perform web searches?

Yes, web search is listed among its supported features and capabilities.

Start building with Muse Spark 1.2

Muse Spark 1.2 API

meta/muse-spark-1.2

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "meta/muse-spark-1.2",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'