Meta Launches Muse Spark 1.1 in US Public Preview With Lower-Cost Pricing for Coding Agents

Meta announced Muse Spark 1.1 is now available in the US public preview, giving developers access to tools that can handle coding assistance, file inspection, and more complex software tasks.

The model is priced starting at $1.25 per million input tokens and $4.25 per million output tokens, making it a more affordable option compared to similar models from OpenAI and Anthropic. US developers participating in the preview receive $20 in free credits before any charges apply.

Muse Spark 1.1 features a context window of one million tokens, according to Meta.

What Muse Spark 1.1 Does and How It’s Priced

Meta introduces Muse Spark 1.1, a model designed for various tasks including coding and media understanding, across different input types. It can handle writing and debugging code, using software tools, interpreting text, images, video, and documents, and completing multi-step tasks with minimal human oversight.

Developers can ask the model to interpret written instructions, review screenshots, read project files, or operate within software environments as part of a single job. Meta states that the model excels at agent performance, tool use, and computer tasks.

Mark Zuckerberg described Muse Spark 1.1 on X as "a strong agentic and coding model at a very low price," emphasizing its strengths in agent performance and tool utilization.

The API pricing for Muse Spark 1.1 is $1.25 per million input tokens and $4.25 per million output tokens.

The US public preview offers $20 in free credits for new users, allowing testing without immediate payment. Meta’s chief AI officer, Alexandr Wang, told CNBC that the pricing is "very aggressive and attractive" and that Meta aims for a pricing model that scales with high usage.

Compared to other coding-focused models, Muse Spark 1.1’s costs are lower. Anthropic Claude Sonnet 5 charges $2 for input and $10 for output per million tokens, with an introductory rate valid through August 31, 2026, after which prices rise to $3 and $15…