# Meta

> Run Everruns agents on Muse Spark 1.3 through Meta Model API, including the discounted Contributor tier.

Source: <https://everruns.com/docs/providers/meta/>

Everruns runs Muse models through [Meta Model API](https://dev.meta.ai/). The dedicated `meta` driver uses Meta’s OpenAI-compatible Responses API at `https://api.meta.ai/v1`, including streaming, parallel tool calls, reasoning replay, message phases, hosted tool search, and server-managed response history.

## Configure in Everruns

1. Create an API key in the [Meta Model API dashboard](https://dev.meta.ai/).
2. Go to **Settings** → **Providers** and click **Add provider**.
3. Choose **Meta**, paste the key, and save.
4. Sync models to import the Muse models available to your team.

The hosted endpoint is used by default. An optional base URL can point the driver at a compatible proxy; model discovery is disabled for non-Meta hosts.

## Muse Spark 1.3 tiers

Muse Spark 1.3 is built for long-horizon coding and multi-step agentic work, with native tool calling and MCP support. Both 1.3 model IDs have a 1,048,576-token context window and accept text, images, audio, video, and PDFs while producing text.

| Model                        | Data use                                                                                  | Input / cached input / output per million tokens |
| ---------------------------- | ----------------------------------------------------------------------------------------- | ------------------------------------------------ |
| `muse-spark-1.3`             | Prompts and completions are not used to train Meta models                                 | $1.25 / $0.15 / $4.25                            |
| `muse-spark-1.3-contributor` | Prompts and completions are used to train and improve Meta models; rate-limited by tokens | $0.10 / $0.002 / $0.20                           |

Choose the Contributor model only when the organization accepts its data-use terms. The distinction is part of the model ID, so changing tiers is an explicit model selection rather than a hidden provider setting.

The previous `muse-spark-1.2` and `muse-spark-1.2-contributor` IDs remain available with the same tiers and pricing.

## Links

* [Meta Model API documentation](https://dev.meta.ai/docs/overview/)
* [Muse Spark model page](https://developer.meta.com/ai/models/muse-spark/)
* [Migrate between providers](https://everruns.com/docs/how-to/migrate-providers/)