Muse Spark 1.2 Contributor
import { streamText } from 'ai'
const result = streamText({ model: 'meta/muse-spark-1.2-contributor', prompt: 'Why is the sky blue?'})Copy link to headingPlayground
Try out Muse Spark 1.2 Contributor by Meta. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.
Muse Spark 1.2 Contributor
Muse Spark 1.2 Contributor
Copy link to headingProviders
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
Copy link to headingThroughput24 hours
P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.
Copy link to headingLatency24 hours
P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.
Copy link to headingUptime24 hours
Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.
Copy link to headingMore models by Meta
| Model |
|---|
| 131K | 0.2s | 107tps | $0.35/M | $1.50/M | Read:$0.04/M Write:— | — | +1 |   | 08/10/2026 | |||||
| 1M | 3.7s | 71tps | $1.25/M | $4.25/M | Read:$0.15/M Write:— | — | +2 | | 08/05/2026 | |||||
| 1M | 8.0s | 147tps | $1.25/M | $4.25/M | Read:$0.15/M Write:— | — | +2 | | 07/09/2026 | |||||
| 131K | 0.2s | 43tps | $0.24/M | $0.97/M | — |   | 04/05/2025 | |||||||
| 131K | 0.2s | 167tps | $0.17/M | $0.66/M | — | | 04/05/2025 | |||||||
| 131K | 0.2s | 124tps | $0.02/M | $0.05/M | — |  | 07/23/2024 |
Copy link to headingAbout Muse Spark 1.2 Contributor
Muse Spark 1.2 Contributor is a pricing tier rather than a separate model. The weights, the context window of 1.0M tokens, and every capability match Muse Spark 1.2: multimodal input across text, images, video, audio, and PDFs, multi-agent operation as either a planning agent or a parallel subagent, structured output, parallel function calling, and configurable reasoning effort.
What differs is the commercial arrangement. Meta charges substantially less per token, and in exchange uses your inputs and outputs to train and improve its models. Meta has published no separate capability claim for this tier, because there is nothing different to claim.
Decide eligibility before you compare prices. Work that suits this tier is public, synthetic, permissively licensed, or explicitly approved for sharing. Client repositories, personal data, secrets, unreleased product logic, and material under NDA belong on the standard tier.
The scope is wider than the prompt you write. An agent can read terminal output, generated files, and neighbouring directories, so what reaches Meta may exceed what a developer consciously submits. Scope the working directory accordingly.
You can integrate Muse Spark 1.2 Contributor through AI SDK, Chat Completions API, Responses API, Messages API, or other API formats, from TypeScript or Python.
Copy link to headingWhat To Consider When Choosing a Provider
- Configuration: Read the terms in your Meta developer account before routing traffic here. Public documentation on retention period, deletion process, and regional eligibility is thin, and the terms in your logged-in account take precedence over any summary, including this page.
- Configuration: An agent's reach is wider than its prompt. Terminal output, generated files, and neighbouring directories can all enter the context that gets shared, so a developer who intends to submit one file may submit considerably more. Scope the working directory before you point an agent at this tier.
- Configuration: The saving is real and large, which is exactly why the decision should not be made on price. Standard Muse Spark 1.2 exists for everything that fails the eligibility test, and mixing the two per task is a reasonable pattern: the model can be switched mid-session without losing context.
- Zero Data Retention: Zero Data Retention is offered on a per-provider and model basis. See the documentation for details.
- Authentication: AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.
Copy link to headingWhen to Use Muse Spark 1.2 Contributor
Best for
- Public And Open Source Code: Sharing inputs carries no confidentiality risk
- Synthetic Data: Generated specifically for the workload
- High-Volume Experimentation: Where cost decides what is affordable to try
- Pre-Approved Projects: Cleared for data sharing in advance
Consider alternatives when
- Client Or Customer Code: Standard Muse Spark 1.2 is the correct tier
- Secrets And Personal Data: An agent may read files you did not intend to submit
- NDA Or Unreleased Work: The price difference does not change eligibility
- Undocumented Retention Needs: Public terms on retention and deletion are limited
Copy link to headingConclusion
Muse Spark 1.2 Contributor is Muse Spark 1.2 at a fraction of the price, paid for with your inputs and outputs rather than tokens. Point meta/muse-spark-1.2-contributor at AI Gateway only for work that is public, synthetic, or explicitly cleared, and keep everything else on the standard tier.