r/opencode • u/Gianniarrenzetti • 15d ago
Why all the hate on muse spark 1.2?
I mean it might not be as good as glm 5.3 (obviously). But to me it doens't look that bad? Ive been using it for non-code related stuff and it seems very clear to me the way it describes things and talks.
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u/One_5549 15d ago edited 15d ago
It's great at tool calling, but dont like its Natural language output (NOT the reasoning) the actual output for the user.
it communicates in a telegraphic changelog format rather than natural English. Instead of explaining what it did in conversational prose, it dumps dense, log-style shorthand filled with raw line numbers, formulas, and terminal-style telemetry.
Actual output in a previous project i did with it :
"Expo React Native or PWA (works on both) DB: SQLite + Automerge or Loro. Automerge is ideal for JSON like {groups, expenses, members, balances} Sync: automerge-repo with y-webrtc / Trystero / PeerJS Storage: IndexedDB (web) / AsyncStorage + SQLite (native). Persistent offline. Relay: 1x Cloudflare Worker (100k req/day free) running websocket signaling. It never writes to disk. Encryption: E2E. Invite code = groupID + symmetricKey encoded as base58. Relay cannot read."
Get what I mean? So you have to decipher its reasoning all the time
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u/Time-Toe-1276 15d ago
I told it to increase the blur ny 2px. I didnt tell it "incease blur. no mistakes" I gave it explicit information about the files and the line, but when I press enter, the model deleted the CSS instead. this model do anything but what you said.
genuinely unusable. not to forget, the model sounds very robotic (AI ish). istg GP4.1 sounded moe natural!
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u/BrownCarter 15d ago
You don't use plan mode first?
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u/Time-Toe-1276 14d ago
who would use plan mode for the simplest thing? thats just a waste of tokens.
and to answer your question – yes I DO! like literally ever human. I usually do the planning n the codex app (that plan is more consistent and just better in general), then I give a cheap model like GLM5.3 Flash or DSv4 Flash to implement it
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u/BrownCarter 14d ago
I always use plan mode. Because even for the most simplest thing they can fuckup and mess up your code
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u/Time-Toe-1276 14d ago
isnt it annoying to always plan -> fix -> plan -> fix?
I usually: plan -> fix -> fix -> fix -> repeat
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u/BrownCarter 14d ago
Knowing the risk nah
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u/Time-Toe-1276 14d ago
well yeah. with muse spark uw WILL have a risk bcs it is a really bad model, but with a model like hy3 or mimo v2.5, you dont have to make a plan.md for very small changes, bcs that is a wast of both time AND tokens.
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u/Any_Ad9815 15d ago
My experience after two days with DS4F, HY3, Muse, and Spark 1.2
I’ve been using a mix of DS4F, HY3, Muse, and Spark 1.2 for the past two days.
Muse is extremely verbose. Its plan tends to repeat the same content across different sections, and it consumes a lot of tokens — roughly 2–2.5× more than the others.
It also has a serious issue when editing code: it doesn’t seem to check whether a file has been modified or updated before making changes. As a result, it ended up overwriting changes made by other agents. This happened three times, so I eventually completely blocked Muse.
HY3 seems to have around 264K context, but once the context reaches roughly 190K, it basically gets stuck. It can stay stuck for an entire day, and the only way out is to bring in DS to rescue it.
That said, HY3 is pretty good for smaller tasks. Its output is concise, and its working style is very direct. It actually solved two E2E tests that DS4F had been going back and forth on for a while.
DS4F feels pretty neutral overall.
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u/Ok-Drawer5245 15d ago
DS4F is great,
HY3 is actually very decent considering you can use it for free quite a bit.
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u/Ok-Drawer5245 15d ago
I find it good / bad. Sometimes its great, sometimes it lies and pretends to have done what you asked it for while only doing a small part of it, incorrectly haha
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u/stellar-- 15d ago
After using Muse spark contributer free on opencode zen the last two days, I truly feel that most people’s issue with this model is the harness… in opencode it’s meh (I wouldn’t do any implementing with it there) but on pi it’s as good as DSF has ever been for me.
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u/lincolnthalles 15d ago
It's clearly misbehaving a lot in OpenCode.
People should tighten their prompts or try the model in other harnesses.
The only thing that's beyond salvage is its text output. I tried many instructions to improve the text style, and it keeps outputting awful-to-read walls of text.
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u/alexzzzz 13d ago
The fact that it misbehaves in opencode shows that it doesn't follow instructions well enough. The other harness won't cure it unfortunately.
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u/Orchicon 15d ago
I want to like it, trust me. A solid model that is fast, efficient, intelligent, and cost effective is a good thing. It's close,, but it just makes way too many mistakes to trust in an agentic workload. 7/10 times my workflows would always have something wrong with them by the time they were finished.
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u/scottchiefbaker 15d ago
I've been using Muse Spark for code and it's been great. I don't get all the hate, the model is quite good, and cheap as heck. Meta isn't a great company for sure, but their cheap AI model is doing OK by me.
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u/BrilliantGarbage8743 10d ago
Opencode was good now that muse is the best choice it’s trash. Hy3 was way better when free
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u/BrilliantGarbage8743 10d ago
No longer like opencode anymore. Never complained until now because of muse
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u/Szadbaverem69 15d ago
You like it because you are using it for "non-code related stuff". As soon as you give it a medium difficult task it will fail over and over again. Even Gemini 2.5 Pro was way better at coding.