# Muse Spark 1.2

> Source: <https://tokenstead.ai/models/muse-spark-1-2>
> Published: 2026-08-09 08:58:22+00:00

# Muse Spark 1.2

premier**Meta’s proprietary coding model** that powers the Muse Code terminal agent. Muse Spark 1.2 is not released as open weights - it is available only through Meta’s API and through API routers such as OpenRouter.

**Capabilities.** 1M-token context window; multimodal inputs including text, images, video, audio, and PDF documents; parallel function calling; structured output; and configurable reasoning effort. Output is text-only.

**Pricing and access.** On OpenRouter the model is priced at **$1.25/M input tokens and $4.25/M output tokens**. OpenRouter reports that prompt caching can make the effective input price 60-80% cheaper than list price. The native entry point is Meta’s Muse Code agent for macOS and Linux.

**Honest framing.** Parameter count, architecture, and training details have not been publicly disclosed. Independent benchmarks are not yet available, so treat vendor performance claims as preliminary.

- 1000k
- proprietary
- Aug 2026

## Or run it in the cloud

Live per-provider pricing, throughput and uptime - refreshed 1 day ago via OpenRouter. Click a column to sort.

| Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value |
|---|---|---|---|---|---|---|---|---|
| API | 1.25 | 4.25 | - | - | - | - | cheapest |

Default order: throughput among 95%+ uptime providers, then latency; subscriptions last. Sort by any column. Subscription rows show $/mo in the Value column - per-token columns are "-". Affiliate links are marked sponsored / nofollow. Confirm current pricing on the provider's site before committing.

[Detailed API pricing page + JSON endpoint →](/models/muse-spark-1-2/pricing)

[See who runs Meta in production →](/adoption/meta)

## Inference cost over time

Data accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.