Article · 2026-07-09 · 4 moments

Introducing Muse Spark 1.1

Introducing Muse Spark 1.1 Following Muse Spark in April, here's Muse Spark 1.1 - the first Spark model to offer an API. Meta claim significant improvements in agentic tool calling and computer use. There are a lot more details are in the Muse Spark 1.1 Evaluation Report. I had a few days of preview access which was long enough to put together llm-meta-ai, a new plugin for LLM providing CLI (and Python library) access to the model. Here's how to try that out: uv tool install llm llm install ✦ AI generated

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GUEST Meta HOST Simon Willison

Anecdote◆

A few days of preview access to Muse Spark 1.1 was enough time to build llm-meta-ai, a new plugin giving the LLM CLI tool and Python library access to the model.

The author spent a short preview-access window building llm-meta-ai, a plugin that adds Muse Spark 1.1 support to Simon Willison's LLM command-line tool and Python library.

transcript

Simon Willison: I had a few days of preview access which was long enough to put together llm-meta-ai, a new plugin for LLM providing CLI (and Python library) access to the model.

gives example · 1provides context · 1

Example

Generating an SVG of a pelican riding a bicycle via the llm-meta-ai plugin is a quick way to see Muse Spark 1.1 in action.

As with other new model releases, the author ran his signature 'pelican riding a bicycle' SVG-generation test against Muse Spark 1.1 through the new CLI plugin.

transcript

Simon Willison: llm -m meta-ai/muse-spark-1.1 "Generate an SVG of a pelican riding a bicycle"

Claim◆

Muse Spark 1.1 delivers significant improvements over the original Muse Spark in agentic tool calling and computer use.

Meta says its new Muse Spark 1.1 model brings major gains in agentic tool calling and computer-use capability over the original Spark model released in April.

transcript

Meta: Following Muse Spark in April, here's Muse Spark 1.1 - the first Spark model to offer an API. Meta claim significant improvements in agentic tool calling and computer use.

Fact

Muse Spark 1.1 is the first model in the Spark line to offer an API.

Unlike the original Muse Spark, the 1.1 release is the first Spark model that exposes an API for developers.

transcript

Simon Willison: here's Muse Spark 1.1 - the first Spark model to offer an API

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Highlight slides

Meta Launches Muse Spark 1.1✦ from: Muse Spark 1.1 delivers significant improvements over the original Muse Spark in agentic tool calling and computer use.llm-meta-ai: Built During Preview Access✦ from: A few days of preview access to Muse Spark 1.1 was enough time to build llm-meta-ai, a new plugin giving the LLM CLI tool and Python library access to the model.What Improved✦ from: Muse Spark 1.1 delivers significant improvements over the original Muse Spark in agentic tool calling and computer use.What the Plugin Provides✦ from: A few days of preview access to Muse Spark 1.1 was enough time to build llm-meta-ai, a new plugin giving the LLM CLI tool and Python library access to the model.

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