MODELS / META

Muse Spark 1.3 Contributor

Muse Spark 1.3 Contributor is Meta’s cost-optimized API option for agentic coding workflows. It offers a 1M-token context window, dependable tool calling, and multimodal perception at $0.10 per million input tokens and $0.20 per million output tokens, with usage permitted to…

TEXTREASONINGREASONINGTOOL-USEIMPLICIT-CACHINGFILE-INPUTVISION
1.0M
CONTEXT WINDOW
-
MAX OUTPUT TOKENS
$0.1
INPUT PRICE / 1M TOKENS
$0.2
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/meta/muse-spark-1.3-contributor",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Muse Spark 1.3 Contributor supports, in one table.

MODEL ID
blackboxai/meta/muse-spark-1.3-contributor
DEVELOPED BY
Meta
MODEL TYPE
Text
CONTEXT WINDOW
1.0M
MAX OUTPUT TOKENS
-
INPUT MODALITIES
text, image, pdf
OUTPUT MODALITIES
text
INPUT PRICE
$0.1 / 1M tokens
OUTPUT PRICE
$0.2 / 1M tokens
CACHE READ
$0.002 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning