free-ai-api-keys

meta/muse-spark-1.3

Meta: Muse Spark 1.3

Context length
1049K
Input / 1M tokens
$1.25
Output / 1M tokens
$4.25
Released
2026-09-02
Modality
text+image+file+video->text

About Meta: Muse Spark 1.3

Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...

Call Meta: Muse Spark 1.3

Via OpenRouter: one base URL for every provider.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta/muse-spark-1.3",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

Direct on Meta Model API (Llama API):

curl https://api.meta.ai/v1/chat/completions \
  -H "Authorization: Bearer $LLAMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "muse-spark-1.3",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

Meta Model API (Llama API) keys

OpenRouter keys

OpenRouter keys work for meta/muse-spark-1.3 regardless of the upstream provider.