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Description
Muse Spark 1.2 is Meta’s newest coding-focused model, released alongside Muse Code as part of Meta’s AI developer platform. The model improves on Muse Spark 1.1 with stronger code generation, complex debugging, codebase understanding, and full developer workflow performance. Muse Spark 1.2 powers Muse Code, a terminal coding agent that can plan changes, write code, validate results, and coordinate persistent background subagents. The model was co-trained with Muse Code so it performs well inside the agentic coding runtime and tool environment. Its training included scaled coding compute, broader training environment diversity, rejection-sampled harness trajectories, recipe optimizations, and Muse Code toolset integration. Muse Spark 1.2 is designed for long-horizon coding tasks such as whole-repository generation, large end-to-end projects, auto-research, and extended optimization work. It uses planning to sequence work, goal conditioning to stay aligned with the user’s objective, and context compaction to preserve useful knowledge over long sessions. The model also benefits from a self-improvement loop where Muse Spark 1.1 generated challenging coding environments and instruction-following templates for training. By combining coding specialization, agentic workflow support, long-horizon training, subagent compatibility, and Meta Model API availability, Muse Spark 1.2 helps developers build, debug, and optimize software more effectively.
Description
Muse is a cutting-edge AI tool created by Sudowrite, a startup based in Los Angeles, and is tailored specifically for writers of fiction. In contrast to more generalized AI systems, Muse is dedicated solely to the art of narrative prose, showcasing sophisticated storytelling abilities and the capacity to produce extensive, engaging chapters that are both creative and coherent. Drawing from the expertise of over 20,000 writers, Muse aspires to deliver original and compelling narratives that steer clear of clichés, fully embracing the complexities of human experiences, including multifaceted characters, morally ambiguous situations, and rich imagery, all without imposing any restrictions or obligatory happy endings. Seamlessly integrated into the Sudowrite platform, it functions as a collaborative ally for authors, bolstering their creative journey with tools for crafting captivating openings, authentic dialogue, and significant text generation, while ensuring the distinct voice of the writer remains intact. This innovative approach empowers writers to explore new storytelling horizons, ultimately enriching the landscape of modern fiction.
API Access
Has API
API Access
Has API
Integrations
Bash
C#
CSS
Claude Code
Facebook Messenger
GPT-5.4
Java
JavaScript
Kotlin
Meta Model API
Integrations
Bash
C#
CSS
Claude Code
Facebook Messenger
GPT-5.4
Java
JavaScript
Kotlin
Meta Model API
Pricing Details
$1.25 per 1M tokens (input)
$1.25 per million tokens in input, and $4.25 per million tokens of output
Free Trial
Free Version
Pricing Details
No price information available.
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Meta
Founded
2004
Country
United States
Website
meta.ai
Vendor Details
Company Name
Sudowrite
Founded
2020
Website
sudowrite.com/muse