Meta 发布 Muse Code 与 Muse Spark 1.2，聚焦长序列智能体工具调用

2026-08-06 07:58· 1小时前· Simon Willison

AI 导读

Meta 推出编程智能体 Muse Code 及编码向更新 Muse Spark 1.2。Spark 1.2 相较 1.1 显著提升代码生成、复杂调试、代码库理解与端到端开发工作流，并扩大训练环境多样性。该模型与 Muse Code 协同训练，集成其工具集以优化长周期编码任务，如全仓库生成与大型端到端项目。

原文 · 未翻译

Simon Willison’s Weblog

5th August 2026 - Link Blog

Introducing Muse Code and Muse Spark 1.2 (via) Yet more evidence that the most important characteristic of any model these days is long-sequence agentic tool calling. Meta shipped their own coding agent as part of getting that to work!

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1, with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows. In Muse Spark 1.2, we significantly scaled up training compute on coding tasks while expanding training environment diversity. The model also maintains its strength in other key areas like general agents. [...]

We co-trained Muse Spark 1.2 with Muse Code to ensure the model exhibits its best performance and coding usability when paired together. The training included rejection sampled harness trajectories and recipe optimizations for goals, compaction, and subagents, alongside the integration of the Muse Code toolset to maximize harness compatibility. [...]

Muse Spark 1.2 was extensively trained on long-horizon coding tasks, including whole-repository generation, large end-to-end projects, and auto-research.

Here's a pelican riding a bicycle SVG produced by Muse Spark 1.2:

Cartoon illustration of a white pelican with an orange beak riding a red bicycle against a pale blue sky with clouds and a green strip of grass below. The pelican wears a small yellow helmet that looks a bit like it belongs to a Roman centurion, has rosy cheeks, and its orange webbed feet rest on the yellow pedals.

You can see the Spark 1.1 pelican from 9th July here. I think the 1.2 pelican is a small but material improvement.

5th August 2026

来源：Simon Willison 博客 · simonwillison.net

Meta 发布 Muse Code 与 Muse Spark 1.2，聚焦长序列智能体工具调用

Simon Willison 博客·2026-08-06 07:58·1小时前·Simon Willison

AI 导读

原文 · 保持原样，未翻译

Simon Willison’s Weblog

5th August 2026 - Link Blog

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1, with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows. In Muse Spark 1.2, we significantly scaled up training compute on coding tasks while expanding training environment diversity. The model also maintains its strength in other key areas like general agents. [...]

We co-trained Muse Spark 1.2 with Muse Code to ensure the model exhibits its best performance and coding usability when paired together. The training included rejection sampled harness trajectories and recipe optimizations for goals, compaction, and subagents, alongside the integration of the Muse Code toolset to maximize harness compatibility. [...]

Muse Spark 1.2 was extensively trained on long-horizon coding tasks, including whole-repository generation, large end-to-end projects, and auto-research.

Here's a pelican riding a bicycle SVG produced by Muse Spark 1.2:

You can see the Spark 1.1 pelican from 9th July here. I think the 1.2 pelican is a small but material improvement.

5th August 2026

来源：Simon Willison 博客· simonwillison.net

智能体 Meta 模型发布编码