---
title: "Muse Spark 1.3"
description: "Meta's Muse Spark 1.3, with max reasoning for challenging reasoning and agentic tasks"
canonical: "https://vetted.tools/models/muse-spark-1-3"
source: "https://vetted.tools/models/muse-spark-1-3.md"
---

# Muse Spark 1.3

Meta's Muse Spark 1.3, with max reasoning for challenging reasoning and agentic tasks

Source: https://vetted.tools/models/muse-spark-1-3

- Slug: `muse-spark-1-3`
- By [Meta](https://vetted.tools/companies/meta) ([ai.meta.com](https://ai.meta.com), checked 2026-09-26)
- Official page: [https://ai.meta.com](https://ai.meta.com)

## Facts

- Capabilities: Reasoning, Tool use, Implicit caching, File input, Vision, Structured output ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Context window: 1.05M tokens (1,048,576) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Gateway ID: meta/muse-spark-1.3 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Input: $1.25 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Max output: 1.05M tokens (1,048,576) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Takes: Text, image, PDF ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Returns: Text ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- No training on prompts: Offered by every provider on the Vercel AI Gateway, when you turn it on ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Output: $4.25 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Type: Language ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Zero data retention: Available on a paid Vercel plan through the AI Gateway, from every provider on it (you turn it on) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)

## Usage

- 13,561,646 requests and 1,200,361,043,005 tokens on [OpenRouter](https://openrouter.ai/meta/muse-spark-1.3) over the 24 days to 2026-09-25.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml