Muse Code and Muse Spark 1.2

#1

Post by paulkrush » Wed, Aug 05, 2026, 7:15 PM UTC

Muse Code and Muse Spark 1.2
research.meta.ai

Re: Muse Code and Muse Spark 1.2

#2

Post by paulkrush » Wed, Aug 05, 2026, 7:16 PM UTC

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.

Re: Muse Code and Muse Spark 1.2

#3

Post by ipsum2 » Wed, Aug 05, 2026, 7:34 PM UTC

I wonder why they didn't compare with GPT-5.6-sol, only Terra?

Re: Muse Code and Muse Spark 1.2

#4

Post by wmf » Wed, Aug 05, 2026, 7:39 PM UTC

ipsum2 wrote: post #3

I wonder why they didn't compare with GPT-5.6-sol, only Terra?

Clearly they're positioning it as a mid model.

Re: Muse Code and Muse Spark 1.2

#5

Post by logicchains » Wed, Aug 05, 2026, 7:40 PM UTC

ipsum2 wrote: post #3

I wonder why they didn't compare with GPT-5.6-sol, only Terra?

Presumably because it's worse than Sol, same reason they compared it to Opus 5 not Fable.

Re: Muse Code and Muse Spark 1.2

#6

Post by minimaxir » Wed, Aug 05, 2026, 7:41 PM UTC

Muse Spark 1.1 was released July 16th, less than a month ago. A new version release this soon (particularly after Kimi K3's release drastically overshadowed it) is a bit sus and it appears that Meta is trying a first launch do-over.

Re: Muse Code and Muse Spark 1.2

#7

Post by rvz » Wed, Aug 05, 2026, 7:42 PM UTC

First of all, you have login to use it. Why?

After everything that you have seen with Meta, would you really trust them with a coding agent? You don't even know if your prompts are being analyzed by them on the side or if your code base is being uploaded to them. This goes for the rest of them that have closed harnesses and closed models gated by a login.

Think twice before falling for this announcement and ask yourself what they are not telling you.

Re: Muse Code and Muse Spark 1.2

#8

Post by Bolwin » Wed, Aug 05, 2026, 7:43 PM UTC

> Muse Spark 1.2 is available today in Muse Code and in Meta Model API with expanded global access

Wasn't the previous one us only? This is probably the biggest part of the post

Anyone know if muse code is open source?

Re: Muse Code and Muse Spark 1.2

#9

Post by qphe95 » Wed, Aug 05, 2026, 7:44 PM UTC

Theres no actual evidence they didn't just distill Kimi K3

Re: Muse Code and Muse Spark 1.2

#10

Post by woadwarrior01 » Wed, Aug 05, 2026, 7:45 PM UTC

ipsum2 wrote: post #3

I wonder why they didn't compare with GPT-5.6-sol, only Terra?

Haven't you seen the kernel optimization case study at the bottom of the page? They compare against GPT-5.6 Sol and their model is worse.