Meta Model APIMeta
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Related Products
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About
ChapterMuse is a desktop writing application for novelists and other fiction writers. It brings manuscript drafting, chapter and scene organization, character profiles, plot planning, and worldbuilding into one workspace. The Studio edition adds tools for organizing locations, factions, and items, along with book formatting and EPUB export. Core writing features run offline, and manuscripts are stored on the user's computer; optional AI tools and cloud services are offered separately. ChapterMuse is available for Windows through the Microsoft Store, with Light, Writer, and Studio editions sold as one-time licenses for the purchased major version and updates within that version. A 30-day trial is offered, and a Mac edition is planned. The software is intended for novelists, independent authors, and writers who want to plan and manage fiction projects alongside their drafts.
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About
Meta Model API is a new developer API for building with Muse Spark 1.1, Meta’s multimodal reasoning model built for agentic tasks, coding, tool use, computer use, and multimodal understanding. Now in public preview, it gives developers a way to access Muse Spark 1.1 through an OpenAI-compatible package, making it easier to point existing clients at the API, keep the same code structure, and set the model to muse-spark-1.1. Muse Spark 1.1 is designed for personal agentic tasks that require planning and orchestration across external apps and services, with the ability to generalize to new native tools, MCP servers, and custom skills. As a main agent, it can gather context, make a plan, and delegate execution across parallel subagents; as a subagent, it follows its role, understands available tools, and knows when to escalate back. The model can actively manage a 1 million-token context window, remember actions, retrieve information from much earlier work, and compact context.
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Platforms Supported
Windows
Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Novelists, fiction writers, independent authors and worldbuilders.
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Audience
Developers and anyone needing a multimodal model API for coding agents, tool-using workflows, computer use, and long-context automation
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
£24 one-time
The Light license is £24, Writer is £36, and Studio is £48 as one-time lifetime licenses for ChapterMuse 1, with 1.x updates included. The £24 Light price includes UK VAT; final totals are confirmed at checkout. AI credits are purchased separately. The optional Cloud add-on is £6/month including UK VAT.
Free Version
Not Supported
Free Trial
Supported
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Pricing
$1.25 per 1M tokens
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationChapterMuse
United Kingdom
www.chaptermuse.com
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Company InformationMeta
United States
developer.meta.com/ai/products/meta-model-api/
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Continue
Not Supported
GitHub
Not Supported
Hermes Agent
Not Supported
Hugging Face
Not Supported
LangChain
Not Supported
Llama 3
Not Supported
Llama 4 Behemoth
Not Supported
Llama 4 Scout
Not Supported
LlamaIndex
Not Supported
Meta AI
Not Supported
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Integrations
Continue
Supported
GitHub
Supported
Hermes Agent
Supported
Hugging Face
Supported
LangChain
Supported
Llama 3
Supported
Llama 4 Behemoth
Supported
Llama 4 Scout
Supported
LlamaIndex
Supported
Meta AI
Supported
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