AI Personal Assistants: Muse, Grok Bot, Cue Usage & Comparisons

In a two-hour comparison with Fable 5.1 using the same self-improvement prompt, Muse Spark 1.3 Ultra ran 20 improvement loops and over 60 agent runs for under $1.

On MineBench, Muse Spark 1.3 cost $6.57 with an average inference time of 5m 36s and scored 1,787, a large gain over its predecessor but still short of frontier models.

A post claims Muse Spark 1.3 was jailbroken on its first day to generate RATs, infostealers, game cheats and exploits, tying it to long-horizon agent training.

Pairing the open-source agent server Hermes with Meta's Muse Spark 1.3 Contributor can cut a $350/month bot farm to almost nothing, one post says.

Alexandr Wang shares an underrated trick: install Muse code with the curl install script to try Muse Spark 1.3 directly.

A user compared Muse Spark 1.3 and Fable 5.1 on the same prompt at the highest reasoning level, finding a large gap in time and cost, and shared a video asking which did better.

A screenshot from Artificial Analysis is said to show unreleased Meta Muse Spark at max reasoning beating Fable 5, while the available xhigh tier matches Grok 4.6 and GPT 5.6 sol.

Oppenheimer analyst Timothy Horan says SpaceX is now a competitor to Anthropic and calls Grok Bot an agent that can run your life over time, saying it is about to go viral.

Meta's Muse Spark 1.3 is now available on OpenRouter, aimed at long-running agentic, multi-agent and coding workflows; it tracks what it learns and asks for clarification when inputs conflict.

A Turkish user rounds up Muse Spark 1.3 benchmarks: it leads on long context and coding but tops none of six agent tests, alongside three Muse Code subscription tiers priced in lira.

A short update: Meta has officially confirmed that Muse Spark 1.3 is now live.

A Meta researcher says Muse Spark 1.3 is available now in the Meta Model API and Muse Code, with larger Muse models, an open-weights Muse Spark release and new products to follow.