Muse Spark 1.3 is an AI model by Meta. View detailed benchmark scores, pricing data, and performance metrics on Serenities AI Models.
Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.
Coding Benchmarks
Human preference ELO for building things — websites, UI, games, charts, SVG
Design Arena (via OpenRouter)Human preference ELO for building a working web page from a brief
Design Arena (via OpenRouter)Cost Benchmarks
Cost per 1M cached input tokens — the price that actually applies to a long agent conversation
OpenRouter APIContext Benchmarks
Available from 9 providers
The same model costs different amounts depending on who serves it. You can bring your own key for 2 of these — connect it here.
| Provider | Input / 1M | Output / 1M | Cached in | Context | Your key |
|---|---|---|---|---|---|
| DevPass (LLM Gateway) | $1.25 | $4.25 | $0.15 | 1.0M | — |
| EmpirioLabs AI | $1.25 | $4.25 | $1 | 1.0M | — |
| Kilo Gateway | $1.25 | $4.25 | $0.15 | 1.0M | — |
| LLM Gateway | $1.25 | $4.25 | $0.15 | 1.0M | — |
| Meta | $1.25 | $4.25 | $0.15 | 1.0M | — |
| NanoGPT | $1.25 | $4.25 | $0.15 | 1.0M | — |
| OpenCode Zen | $1.25 | $4.25 | $0.15 | 1.0M | — |
| OpenRouter | $1.25 | $4.25 | $0.15 | 1.0M | Supported |
| Vercel AI Gateway | $1.25 | $4.25 | $0.15 | 1.0M | Supported |
Muse Spark 1.3 — Benchmark Scores Overview
Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).
Muse Spark 1.3 — Frequently Asked Questions
How much does Muse Spark 1.3 cost?
Muse Spark 1.3 costs $1.3 per 1M input tokens and $4.3 per 1M output tokens. This is mid-range pricing for its capability level.
What is the context window of Muse Spark 1.3?
Muse Spark 1.3 has a context window of 1.0M tokens. This determines how much text, conversation history, and code the model can process in a single request.
Who created Muse Spark 1.3?
Muse Spark 1.3 was created by Meta. It is classified as a mid model in our catalogue.
Is Muse Spark 1.3 open source?
No, Muse Spark 1.3 is a proprietary model. It is available through Meta's API and compatible providers.