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Muse Spark 1.1

Reasoning modelCoding model

Muse Spark 1.1 by Meta Superintelligence Labs

Release date: 2026-07-09Updated: 2026-08-22Views: 1,753
Live demoGitHubHugging FaceCompare
Parameters
No data
Context length
1M
Multilingual
No data
Reasoning ability
4/5

Muse Spark 1.1 is a reasoning model from Facebook AI Research Lab, released on 2026-07-09. It accepts text, image, audio, and video input and returns text output. The recorded context window is 1M. Cataloged capabilities include Reasoning model and Coding model. The model weights are proprietary and are not published for download. Use the linked references to confirm current access, licensing, and provider-specific limits.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Muse Spark 1.1

Model basics

Reasoning traces
Supported
Thinking modes
Thinking Mode (Default)Standard Mode
Context length
1M tokens
Max output length
No data
Model type
Reasoning model
Modality (in / out)
Text, Image, Audio, Video → Text
Release date
2026-07-09
Model file size
No data
MoE architecture
No
Total params / Active params
No data / Not applicable
Knowledge cutoff
No data
Muse Spark 1.1

Open source & experience

Code license
Proprietary
Weights license
Proprietary
GitHub repo
N/A
Hugging Face
N/A
Live demo
Muse Spark 1.1

Official resources

Paper
DataLearnerAI blog
N/A
Muse Spark 1.1

API details

API speed
4/5
No public API pricing yet.
Muse Spark 1.1

Benchmark Results

Muse Spark 1.1 currently shows benchmark results led by HLE (4 / 185, score 62.10), MCP-Atlas (2 / 40, score 88.10), Creative Writing (6 / 99, score 1915.20). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.

Thinking
Tool usage

General Knowledge

1 evaluations
Benchmark / mode
Score
Rank/total
HLE
Thinking ModeTools
62.10
4 / 185

Writing and Creative Capabilities

1 evaluations
Benchmark / mode
Score
Rank/total
Creative Writing
Standard Mode
1915.20
6 / 99

Coding and Software Engineer

3 evaluations
Benchmark / mode
Score
Rank/total
Text Arena (Coding)
Standard Mode
1536.36
12 / 35
SWE-Bench Pro - Public
Thinking ModeTools
61.50
13 / 59
DeepSWE
Thinking ModeTools
53.30
21 / 31

AI Agent - Tool Usage

5 evaluations
Benchmark / mode
Score
Rank/total
MCP-Atlas
Thinking ModeTools
88.10
2 / 40
OSWorld-Verified
Thinking ModeTools
80.80
7 / 26
Terminal-Bench 2.1
Thinking ModeTools
80
22 / 47
Terminal-Bench 2.1
Extra-HighTools
76.20
26 / 47
Tool Decathlon
Thinking ModeTools
75.60
1 / 10

Text Embedding

4 evaluations
Benchmark / mode
Score
Rank/total
70.32
63 / 126
74.38
51 / 126
69.86
65 / 126
Context Arena
Extra-High
70.01
64 / 126

Compare with other models

Muse Spark 1.1

Publisher

Facebook AI Research Lab
Facebook AI Research Lab
View publisher details
Muse Spark 1.1 by Meta Superintelligence Labs

Model Overview

Muse Spark 1.1 is a reasoning model from Facebook AI Research Lab, released on 2026-07-09.

It accepts text, image, audio, and video input and produces text output. Its cataloged capabilities include Reasoning model and Coding model. The recorded context window is 1M.

The model weights are proprietary and are not published for download. The evaluation section contains 7 cataloged benchmark results with their recorded modes and scores. The page links 2 release, model-card, repository, or provider references for checking the underlying claims. Specifications, availability, and prices can change; undisclosed values are intentionally left unstated.

Muse Spark 1.1

FAQ

What is Muse Spark 1.1?

Muse Spark 1.1 is a reasoning model from Facebook AI Research Lab, released on 2026-07-09. It accepts text, image, audio, and video input and returns text output. The recorded context window is 1M. Cataloged capabilities include Reasoning model and Coding model. The model weights are proprietary and are not published for download. Use the linked references to confirm current access, licensing, and provider-specific limits.

What input and output modalities does Muse Spark 1.1 support?

The current model record lists text, image, audio, and video as input and text as output.

What are the main recorded specifications for Muse Spark 1.1?

The recorded context window is 1M. Fields without a source-backed value remain undisclosed.

Why is no API price shown for Muse Spark 1.1?

The Meta Model API is in public preview and no public list price is published for Muse Spark 1.1.

Are benchmark results available for Muse Spark 1.1?

The evaluation section contains 7 cataloged benchmark results with their recorded modes and scores. Compare only results that use the same benchmark version and evaluation mode.

Is Muse Spark 1.1 open source?

The model weights are proprietary and are not published for download. Review the linked license text before commercial or derivative use.

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