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Muse Code and Muse Spark 1.2

https://research.meta.ai/blog/introducing-muse-code-and-muse-spark-1-2
46•paulkrush•1h ago

Comments

paulkrush•1h ago
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.
ipsum2•45m ago
I wonder why they didn't compare with GPT-5.6-sol, only Terra?
wmf•40m ago
Clearly they're positioning it as a mid model.
minimaxir•34m ago
Which is in itself a bit weird as mid models nowadays are a golden mean fallacy. Terra is much less popular than both Luna (cost-sensitive) and Sol (performance-sensitive).

Claude Sonnet is a weird exception to the mid models because Anthropic doesn't do much with Haiku and Opus is too big.

logicchains•39m ago
Presumably because it's worse than Sol, same reason they compared it to Opus 5 not Fable.
woadwarrior01•34m ago
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.
Handy-Man•32m ago
Their bigger model is not ready - watermelon code name was still being prepared for release as of a month ago
minimaxir•37m ago
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.
rvz•37m ago
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.

Bolwin•36m ago
> 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?

qphe95•35m ago
Theres no actual evidence they didn't just distill Kimi K3
toephu2•20m ago
At this point, it doesn't matter who is distilling from who.
Jabrov•1m ago
Is there any actual evidence that they did?
mchusma•29m ago
This is a nice release and a solid improvement over Spark 1.1. It compares favorably with Grok 4.5. Not SOTA, but solid releases. I think they need to really get this more competitive with Deepseek V4 Flash / Luna pricing to move the needle.
handzhiev•8m ago
If you are happy to share data for training, the contributor mode offers amazing price $0.10 / $0.20
kcb•29m ago
Open the weights.
esafak•21m ago
If anyone from Meta is reading, please can you publish the cost and latency for each of your benchmarks, like OpenAI does? This needs to become standard practice.
liviux•19m ago
Does this muse code have any muse spark 1.2 usage included? Can't understand from the docs.
fcoury•18m ago
Interesting, it seems like their muse code is built upon Codex CLI?
conradkay•17m ago
https://pbs.twimg.com/media/HO-59jQaoAA_JZ1?format=jpg

Very interesting they have a way cheaper "contributor" version "used to improve our products", how much of that is price discrimination vs the data being that valuable?

Roughly DeepSeek V4 Flash pricing, though you can get V4 from providers that don't train on your data

daemonologist•15m ago
Pricing: https://dev.meta.ai/docs/pricing-rate-limits

Interesting that they have separate API pricing for "we can train on your data" (whereas iirc most of the big players either make that distinction only between subscriptions and API usage, or train on everything). Wonder how it compares to Deepseek V4 Flash given that they're similar on pricing and data policy.

giancarlostoro•10m ago
Will someone at Meta for the love of God make it so none of this stuff goes through Facebook.com? You want customers but most corporate firewalls block social media. Also, a lot of devs do not want their work stuff tied up to their facebook account. For the love of all things show the IG / FB logins as optional and do email as primary.

I am not a fan of Meta but I do cheer for any competitors against OpenAI and Anthropic, the duopoly is getting tiresome.

aanet•8m ago
+10000 to that
king_crimson•4m ago
Why does every AI lab feel the need to build their own coding agent…? Don’t we have more than enough already?
bradfa•3m ago
If you got the $20 in free credits from Meta for signing up when muse-spark-1.1 was release, please note that there's now small print stating "While using free credits your content may be used for product improvement" which was not present at muse-spark-1.1 launch when the credits were given out.

If you don't mind Meta retaining your data, the "Contributor" pricing is deepseek-v4-flash-level of low, roughly 1/10th normal muse-spark API pricing currently. Attractive if you're OK with them retaining and using your data.

wxw•2m ago
Last I heard, everyone at Meta was using Claude Code.

Any insiders know how Muse Code is doing internally?

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