Muse Spark

Last updated

Muse Spark
Developer Meta
ReleaseJuly 9, 2026 (2026-07-09)
Type Large language model
License Proprietary - Spark
Apache 2.0 - Glimmer
Website ai.meta.com

Muse Spark is a large language model (LLM) developed by Meta through its Meta Superintelligence Labs (MSL). It was introduced in April 2026 and launched as Muse Spark 1.1 on July 9, 2026. It is the first model in Meta's Muse family and is designed for multimodal reasoning, coding, and AI-assisted software development. It is also used for other Meta AI products and services. It can handle a million tokens of context. [1]

Contents

An open-weight version of the model, Muse Spark Open, was released on October 15, 2026, and is a mixture of experts model consisting of 816 billion total parameters and 42 billion active parameters. [2] Meta released a smaller open-weight large language model, Muse Glimmer, on August 10, 2026.

Muse Code

Meta released Muse Code, a terminal-based coding agent, alongside Muse Spark 1.2 on August 5, 2026. Powered by the model, it can write and debug code, complete longer software development tasks, and run multiple sub-agents concurrently. [3] Muse Spark 1.2 was also made available through the Meta Model API and OpenRouter. [4] [5] [ non-primary source needed ] A lower-priced contributor tier allows Meta to retain submitted data to improve its products, while data submitted through the higher-priced standard tier is not retained for that purpose. [6]

Muse Glimmer

Muse Glimmer is an open-weight multimodal large language model developed by Meta released on August 10, 2026. The 30-billion-parameter causal language mode combines a large language model with a dedicated perception encoder and supports both natural language and visual inputs. It was designed for local agentic and coding workloads, and can be run offline on a 24 GB consumer GPU.[ citation needed ] The model weights are distributed under the Apache License 2.0. [7] [8]

See also

Further reading

References

  1. ↑ "Meta enters the crowded AI coding battle with Muse Spark 1.1". TechCrunch. July 9, 2026. Retrieved July 11, 2026.
  2. ↑ Miller, Chance (October 15, 2026). "Meta launches new Muse Spark Open model, optimized to run on Mac Studio". 9to5Mac. Retrieved October 15, 2026.
  3. ↑ "Meta launches new AI coding tool powered by Muse Spark 1.2". Reuters. August 5, 2026. Retrieved August 5, 2026.
  4. ↑ "Meet Muse Spark 1.2 and Muse Code". Meta for Developers. Meta Platforms. August 5, 2026. Retrieved August 5, 2026.
  5. ↑ "Meta API and Models". OpenRouter . Retrieved August 5, 2026.
  6. ↑ "Meta to take on Anthropic's Claude and OpenAI's Codex with new coding agent". Business Insider. August 5, 2026. Retrieved August 5, 2026.
  7. ↑ "meta-models/Muse-Glimmer-30B". Hugging Face . Meta . Retrieved August 10, 2026.
  8. ↑ Dent, Steve (August 10, 2026). "Meta's 'open source' Muse Glimmer model can run on a single computer". Engadget . Retrieved August 10, 2026.
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