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Muse Spark Open

Tools
meta/muse-spark-open

1M context · Oct 2026 · 1 upstreams

Meta's Muse Spark Open is a coding-optimized open-weight model for agentic coding. It is a sparse mixture-of-experts with 816B total and about 42B active parameters, reads text, images, video, audio and files, returns text, and has a 1M-token context window.

Bring your own keyAnyRouter has no platform route for Muse Spark Open. Requests use your key and bill your provider account. AnyRouter adds no fee.
context
1M
input / 1M (list)
$1.25
output / 1M (list)
$4.25
routes
1
speed, 24h
—

Upstreams

1
  1. 1OpenRouterYour key · not addedyour planTPS —TTFT ——
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Try it

Send a prompt

Details

Owner
Meta
Kind
Vision
Released
Oct 2026
Context
1M
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "meta/muse-spark-open",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'