Billing note Prompts and responses sent to this model may be used by Meta for model training. Use muse-spark-1.3 for anything personal, confidential or customer-owned. Reasoning model: keep max_tokens >= 2048 (400 ended with empty content in testing).

MetaMediumUltra

Muse Spark 1.3 Contributor

The discounted Contributor tier of Meta's Muse Spark 1.3 - same model, about 1/12 of the standard price, on the condition that prompts and responses may be used by Meta to train its models. Do not send personal, confidential or customer data. Shares an upstream limit of 100 requests / 3M tokens per minute.

186/372credits

input / output · per 1M tokens

Same Muse Spark 1.3 model at about 1/12 of the standard price

Prompts and responses may be used for Meta training (the discount condition)

1M-token context, multimodal input (text, image, video, audio, PDF)

Shared upstream limit: 100 RPM / 3M TPM

OpenAI-compatible API via /llm/meta/v1

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Model Specifications

Context Window

1.0M

tokens

Max Output

33K

tokens

Training Cutoff

Not published

Compatible SDK

OpenAI

Capabilities

Vision

Function Calling

Streaming

JSON Mode

System Prompt

Token Pricing (per 1M tokens)

Token Type	Credits	USD Equivalent
Input Tokens	186	$0.12
Output Tokens	372	$0.25
Cached Tokens	3.716	$0.00

* 1,500 credits ≈ $1 (actual charges may vary based on usage)

Quick Start

curl -X POST "https://api.core.today/llm/meta/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "muse-spark-1.3-contributor",
  "messages": [
    {
      "role": "user",
      "content": "Summarize this public press release in 3 bullets: ..."
    }
  ],
  "max_tokens": 4096
}'

Parameters

Parameter	Type	Required	Default	Description
`messages`	array	Yes	-	Chat messages in OpenAI format. Content may be used by Meta for training - no personal or confidential data.
`max_tokens`	integer	No	2048	Maximum completion tokens including reasoning. Keep >= 2048 or the answer may be cut off before any content is produced.
`temperature`	number	No	0.7	Sampling temperature (0-2).
`stream`	boolean	No	false	Stream the response as server-sent events.

Examples

Low-cost batch summarization

Summarize a public article - content may be used for Meta training.

curl -X POST "https://api.core.today/llm/meta/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "muse-spark-1.3-contributor",
  "messages": [
    {
      "role": "user",
      "content": "Summarize this public press release in 3 bullets: ..."
    }
  ],
  "max_tokens": 4096
}'