Muse Spark 1.2 API

meta/muse-spark-1.2
Muse Spark 1.2 is Meta's multimodal chat model with a 1M-token context window, combining vision, reasoning and tool use for long-context tasks.
Context
1M tokens
Input
$1.71925 / 1M tokens
Output
$5.84545 / 1M tokens
Released
Aug 5, 2026

How to use Muse Spark 1.2 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to meta/muse-spark-1.2.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "meta/muse-spark-1.2",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "meta/muse-spark-1.2",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST 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":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Muse Spark 1.2 API Pricing

TypePrice
Input
$1.71925 / 1M tokens
Output
$5.84545 / 1M tokens
Cached input
$0.20631 / 1M tokens

Muse Spark 1.2 Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Intelligence
39.8
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Coding
72.2
Composite score across standardised coding evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

Muse Spark 1.2 vs other models

ModelInputOutputContextBest for
$1.71925 / 1M tokens
$5.84545 / 1M tokens
1M tokens
Long-context multimodal reasoning and tool use
$5.2 / 1M tokens
$26 / 1M tokens
1M tokens
Frontier reasoning + agents
$1.95 / 1M tokens
$9.75 / 1M tokens
1.05M tokens
Reasoning + agents
$6.5 / 1M tokens
$32.5 / 1M tokens
1M tokens
Complex agentic coding and enterprise workflows
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows

Frequently asked questions

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

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

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

Muse Spark 1.2 became available on August 5, 2026.

Muse Spark 1.2 is priced at input $1.71925 / 1M tokens, output $5.84545 / 1M tokens, cached input $0.20631 / 1M tokens.

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

Yes, Muse Spark 1.2 accepts image input alongside text.

Muse Spark 1.2 was built by Meta.

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

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

Start building with Muse Spark 1.2

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