{"slug": "muse-spark-1-2", "title": "Muse Spark 1.2", "summary": "Meta released Muse Spark 1.2, a proprietary coding model powering the Muse Code terminal agent, available only through Meta's API and routers like OpenRouter. The model features a 1M-token context window, multimodal inputs, and is priced at $1.25/M input tokens and $4.25/M output tokens on OpenRouter, with prompt caching potentially reducing effective input costs by 60-80%. Parameter count and training details remain undisclosed, and independent benchmarks are not yet available.", "body_md": "# Muse Spark 1.2\n\npremier**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.\n\n**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.\n\n**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.\n\n**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.\n\n- 1000k\n- proprietary\n- Aug 2026\n\n## Or run it in the cloud\n\nLive per-provider pricing, throughput and uptime - refreshed 1 day ago via OpenRouter. Click a column to sort.\n\n| Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value |\n|---|---|---|---|---|---|---|---|---|\n| API | 1.25 | 4.25 | - | - | - | - | cheapest |\n\nDefault 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.\n\n[Detailed API pricing page + JSON endpoint →](/models/muse-spark-1-2/pricing)\n\n[See who runs Meta in production →](/adoption/meta)\n\n## Inference cost over time\n\nData accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.", "url": "https://wpnews.pro/news/muse-spark-1-2", "canonical_source": "https://tokenstead.ai/models/muse-spark-1-2", "published_at": "2026-08-09 08:58:22+00:00", "updated_at": "2026-08-09 09:54:18.470480+00:00", "lang": "en", "topics": ["large-language-models", "ai-products", "ai-tools"], "entities": ["Meta", "Muse Spark 1.2", "Muse Code", "OpenRouter"], "alternates": {"html": "https://wpnews.pro/news/muse-spark-1-2", "markdown": "https://wpnews.pro/news/muse-spark-1-2.md", "text": "https://wpnews.pro/news/muse-spark-1-2.txt", "jsonld": "https://wpnews.pro/news/muse-spark-1-2.jsonld"}}