MiMo Code is now released and open-source (mimo.xiaomi.com)

221 points by apeters 3 hours ago

adi2907 33 minutes ago

What a transformation by Xiaomi to build almost frontier level models. Five years back, when I was in the data science team, they dint really bother about AI models and were using Baidu for NLP and vision under the hood of their APIs

MangoCoffee 18 minutes ago

China is all in on AI.

https://www.reuters.com/world/china/china-prepares-295-billi...

While Americans Oppose AI Data Centers

unshavedyak 8 minutes ago

> While Americans Oppose AI Data Centers

I know it's more mixed and complex than this, but i think a big opposition is not to the data centers themselves but to their locations. Too often it feels like the centers are exploiting local resources and community infrastructure rather than paying their share or locating themselves in places that are less likely to cause problems to home owners.

The whole process feels indifferent or even adversarial at times.

cstever 11 minutes ago

correct

GodelNumbering 2 hours ago

> MiMoCode is built as a fork of OpenCode. It keeps all core OpenCode capabilities (multiple providers, TUI, LSP, MCP, plugins) and adds persistent memory, intelligent context management, subagent orchestration, goal-driven autonomous loops, compose workflows, and self-improvement via dream/distill.

From github

Pxtl 2 hours ago

Sounds like they slapped in a bunch of common plugins and released it as a product to promote the free-for-a-limited-time use of their new coding AI service.

ignoramous 2 hours ago

> promote the free-for-a-limited-time use of their new coding AI service

Not sure which "free" service you're referring to, but MiMo v2.5 Pro is plenty capable & (after its recent 70%+ price drop) one of the most affordable options in its class (DeepSeek v4 Pro, MiniMax M3, & Qwen 3.7 Plus). I read somewhere that Labs are incentivized to implement custom harnesses because each model has its strengths, quirks, & blindspots (like Qwen forking Gemini CLI)?

gbalduzzi 4 minutes ago

bel8 38 minutes ago

re-thc an hour ago

cyanydeez 2 hours ago

So, basically the same thing silicon valley has been doing for the past half decade.

ComputerGuru 3 hours ago

Since the link is in Chinese: MiMo Code is Xiaomi’s AI agentic coding harness.

“ MiMoCode is a terminal-native AI coding assistant. It can read and write code, run commands, manage Git, and use a persistent memory system to keep a deep understanding of your project across sessions while continuously improving itself.”

GitHub link (English): https://github.com/XiaomiMiMo/MiMo-Code

@dang might be better to link to the GitHub, and not for language reasons.

(Edit: for posterity, original URL as submitted was [0]).

[0]: https://mimo.xiaomi.com/mimocode

AntonyGarand 3 hours ago

You can change the language via the header: The rightmost option is a language dropdown.

It's a client-side change and doesn't impact the URL so users must manually change it each time they visit the site though

ComputerGuru 3 hours ago

Thanks, I missed that on first glance and did manual translation.

Not sure why my iPhone shows an option to translate website but all the destination languages to pick from (I have multiple languages installed), including English, are greyed out. iPhone does support translating from Chinese (Simplified or Traditional), and the button to translate website isn’t greyed out like it is for unsupported/unrecognized languages. Might be an iOS 27 bug, because it is working on other websites?

ramon156 3 hours ago

Why not persist it through a query param? Or a lang param for that matter

danesparza 2 hours ago

sheept 2 hours ago

freakynit 2 minutes ago

As much as I absolutely love Mimo V2.5 Pro (it's a genuinely good model), I absolutely hate the way they calculate usage in their token plan.

For example: For a super small task in a small project that should not be consuming more than 500K total tokens after all tool calls included, their shown usage shot up to 152 million tokens.

But, when I scroll down on the same page, a table shows usage as 3 million tokens, out of which 2.5 million were cached.

This is such a huge conflict on the very same page. The bad thing is that the usage progress bar is shown against that 150 million token usage, not against that 3 million one.

This has been in discussions for at least past 3 months on reddit as well, and was precisely the reason I subscribed to their lowest tier, and for a single month only.

porphyra an hour ago

Pretty neat that you can just install it and start using it (at a Sonnet 4.6-level model) without needing to sign in or pay.

Typically, Chinese websites are a big pain to log in or sign up because they require a +86 phone number due to legal reasons. Being able to use it without having to make an account is amazing for friction reduction. I could probably even just install it onto new machines to help with set up.

I wonder how they are gonna detect and block abuse though?

sdesol 30 minutes ago

> at a Sonnet 4.6-level model

MiMo v2.5.0-Pro is honestly the first Chinese model that I've tried where I really though why should I use Claude Sonnet when I can get the same results for a fraction of the cost. There was always something off about Chinese models that made it apparent that it couldn't fully compete with GPT, Claude, Gemini, etc. but this was the first model where I was like, this feels like Sonnet.

I can't prove it, but I think they trained heavily on Claude output. From my perspective I don't care since Anthropic trained on my data.

Using them also works well for North Americans as our peak hours is not theirs.

If I had one complaint, the v2.5.0-Pro model thinks too much.

ProofHouse an hour ago

So funny I have noticed how terrible the signup is on all these Chinese models, companies etc. Always wonder why it is such an easy process. Like QQ, Tencent etc demos Ive seen past year

Alifatisk 38 minutes ago

Xiaomi have been cooking a lot in recent times. Their model, especially the pro series, is underrated in my opinion. It haven't received the attention it deserves while it is pushing higher and higher in benchmark scores (looking at artifical analysis), and this was before Deepseek dropped V4.

Furthermore, their pricing plan is insanely cheap, they even upped usage limit for their cheapest plan, lite plan, which is at 5$ / month. And now, they are dropping a Harness for their own model? Amazing. I wish they added support for installation through Homebrew though.

On another note, this is what I would like to see more of from a company, what I do not welcome is startups making their model exclusive and hurt their customer base through sabotaging as a way to prevent eventual distillation attempts.

miroljub 34 minutes ago

Looks like they have very effective collaboration with DeepSeek and Kimi. Those three models have been bouncing ideas and sharing R&D innovation, which made all of them improve very fast.

Based solely on quality and price, OpenAI, Anthropic, and other western models just can't compete with the new generation of Chinese open models.

spelk 7 minutes ago

>Looks like they have very effective collaboration with DeepSeek and Kimi.

The collaboration is informal. People don’t seem to realize this, but the Chinese internet for programmers and developers today feels a lot like StackExchange in its heyday. There’s a huge emphasis on sharing knowledge, because sharing what you know builds your profile, and becoming a rockstar in a subfield is one of the only ways to get ahead.

Competition in China is ruthless. But unlike in North America, where individuals are often bound by agreement to hoard knowledge because it can give them a competitive edge, the competitive advantage in China is building face and peer recognition. And that comes from proving that you are worthy of being a "master/teacher", and that extends to the valuation of your knowledge business. For example, the third wave coffee shops in China, the master roaster is often called "master/teacher" once they win a roasting competition and start sharing new knowledge of roasting in the public sphere, and that's a title of sincere respect.

You can see parallels with those that apply to give talks at conferences and post snazzy technical presentations they give in the US, but the bar for what qualifies as new knowledge is far higher in China because there's a massive ecosystem of people rushing to outcompete what you have to offer.

Reading developer forums in China, once you crack the code (I find Gemini will get you a good chunk of the way with good translations), they are really quite far ahead with what they're willing to share. And I suspect in great part, the decision to release open-weights is heavily tied to that concept of building face/peer recognition = building valuations.

Alifatisk 2 minutes ago

Alifatisk 25 minutes ago

> Looks like they have very effective collaboration with DeepSeek and Kimi. Those three models have been bouncing ideas and sharing R&D innovation, which made all of them improve very fast.

Very fascinating to learn this, didn't know Moonshoot (Kimi) also collaborated with others. I think I read in another post that DeepSeek and Qwen team shared the same building? So that kind of explains it.

> Based solely on quality and price, OpenAI, Anthropic, and other western models just can't compete with the new generation of Chinese open models.

I have to agree. I had the great opportunity to take the offer Z.ai had with their Christmas deal, their lite plan was 3 months for 7$. GLM-4.7 was already impressive enough.

When they released GLM-5-Turbo and GLM-5.1, that is when I came to the realization of how close the gap is between proprietary western models and Chinese open-weight ones (not all of them are ofc).

I could barely believe how good GLM-5.1 was, I didn't think I was using it in CC and had to check the settings again. It's astonishing how close the gap is now, and this competition benefits us very much, the pricing is so low atm, its amazing.

gosukiwi an hour ago

Claude and Codex pricing will eventually have to come down, for most common coding tasks you don't need a super smart slow model but a smart-enough and very fast one.

pmontra 30 minutes ago

I don't known how Codex works, but we can set environment variables and point Claude CLI to deepseek. I think that before slashing prices they will slash those environment variables. After all they are not working to give a free TUI to deepseek and possibly to other competitors. But eventually yes, prices will go down or there will be an attempt at a regulatory capture.

MangoCoffee 22 minutes ago

cheap token for the win.

Microsoft github copilot recently changed their billing. i'm on the yearly subscription. GPT-5.4 is now 6x and even previously free model like GPT-5 mini now cost .33x. its only June 11 and my usage is now at 50%.

Alifatisk 36 minutes ago

I don't think many understand that Sonnet and even Haiku can probably accomplish their task, instead of them invoking a beast like Opus to tell them about todays weather.

mkl 3 hours ago

Much more information in the blog post this links to: https://mimo.xiaomi.com/blog/mimo-code-long-horizon

mellosouls an hour ago

Terrific link thanks for highlighting it

tietjens 2 hours ago

This is my favorite of the Chinese models I have tried. I think it would be hard to know if I was using Opus of MiMo if blindfolded in many instances.

denysvitali 2 hours ago

Yes, but this has nothing to do with MiMo (the model).

This is what Claude Code is to Claude

djsamseng an hour ago

I found it relevant and actually just the information I was looking for. Having a highly recommended model behind the tool makes it worth further investigation.

dannyw 2 hours ago

MiMo Code is not a model, it's a harness like Claude Code / OpenCode / Codex (which is still open source, Apache 2.0, btw).

You might mean the MiMo-V2.5-Pro model?

100ms an hour ago

He didn't say MiMo Code

lsaferite 43 minutes ago

tietjens 40 minutes ago

Sorry for confusion. I indeed meant the model itself.

pmdlt 3 hours ago

"MiMoCode is built as a fork of OpenCode."

Why not just contribute to OpenCode instead of creating a clone :/

mythz 2 hours ago

Because they want to optimize it for their models and don't want to be blocked by waiting for PRs to merge or be rejected.

There's plenty of reasons to start your own fork that you have full agency of, as long as the OSS License is maintained anyone will be able to benefit from any new features they want to make use of.

dannyw 2 hours ago

This is the beauty of open source :) KHTML -> WebKit -> Blink is a good example.

bigyabai an hour ago

rurban an hour ago

Opencode sits on a ton of important PR's, so they didn't want to wait. Everybody else switched to omp (oh my pi) already.

konart 2 hours ago

To go a different path perhaps? You can't expect that all your ideas will land into a main repo and you really want to implement your vision while using a sane base.

postalrat 2 hours ago

OpenCode can merge in all their changes if they want.

est an hour ago

There's a blog link https://mimo.xiaomi.com/blog/mimo-code-long-horizon

I think there's simply too much changed.

doctorpangloss 2 hours ago

have you ever tried contributing a large number of changes to OSS?

dartharva an hour ago

Could just be a courtesy - Americans tend to be rather suspicious and hostile to contributions coming from China, and it might draw unwarranted attention from agencies and bad media.

orangeisthe an hour ago

Why not?

re-thc 2 hours ago

> Why not just contribute to OpenCode instead of creating a clone :/

It's controlled by a different organization; in particular a startup in a "competing" space.

submeta 3 minutes ago

Can this be used as an alternative to Claude backend? For Ralph loops? Replacing `claude -p`? Anyone can shed a light on this?

gclawes 2 hours ago

I thought this was a wireless/MIMO radio project at first

eunos an hour ago

Well Xiaomi is first and foremost a mobile phone company.

rickdeckard 2 hours ago

yeah, was also expecting some disruption in the RF-design space.

Kinda RF-nerd clickbait... :)

fadedsignal 2 hours ago

I also thought the same lol. It also happened with lora

esafak 9 minutes ago

Redditors are unhappy about their coding plan: https://www.reddit.com/r/opencodeCLI/comments/1t37dz3/xiaomi...

andai 2 hours ago

> Unlimited Context

>Knowledge accumulates automatically with lossless compression, preserving every critical detail even across million-line projects.

emulio an hour ago

The installation method they officially propagate is dangerous. curl -fsSL https://mimo.xiaomi.com/install | bash

This is usually a PoC (Proof of concept) way to install something on a temporary container or temporary VM, but not for production use during daily desktop operation.

I was hoping their documentation would provide better installation instructions. But strangely, only for Windows do they recommend "npm install -g @mimo-ai/cli," which is a much better approach to managing installed packages.

For Mac/Linux, they have the strange recommendation to use the dangerous "curl <some_url> | bash." Quote:

> (for the best experience, Mac users are strongly encouraged to use iTerm or the VSCode Terminal) > curl -fsSL https://mimo.xiaomi.com/install | bash

:(

mapontosevenths 39 minutes ago

This is how everyone does it now. Including Anthropic.

To be fair, is that any different from naively trusting NPM? It's not like NPM is doing any vetting. They're every threat actors favorite sandbox these days.

https://code.claude.com/docs/en/quickstart

plus-one 40 minutes ago

Codex use this (for update).

> sh -c 'curl -fsSL https://chatgpt.com/codex/install.sh | CODEX_NON_INTERACTIVE=1 sh'

This is just sh, not bash, but I doubt it would be any better.

folkrav 42 minutes ago

You're right that it's as dangerous as it's executing random third-party code on your machine, but the method also has propagated far beyond PoCs and such at this point. All of these projects and many others push that install method: Bun, Deno, rustup, k3s, Docker (if using their helper script), Homebrew, Tailscale...

meatmanek 27 minutes ago

Frankly, it's not really more insecure than any other installation method. Apt packages and the like generally have the ability to specify pre/post-install scripts, so `sudo dpkg -i ./random.deb` is equivalent to `sudo bash ./random.sh`. Even if they didn't have pre/post-install scripts, they're still writing arbitrary files to arbitrary locations on your disk, so they can trigger execution the next time you boot or log in or whatever.

And at the end of the day, no matter the installation method (even just unpacking a tarball and executing the program directly from that directory), you're going to run their program on your computer, and then the program can do whatever it wants. Maybe you don't run it with sudo, but https://xkcd.com/1200/ seems relevant.

LeonidBugaev an hour ago

Thats exactly same as Claude Code offer: https://code.claude.com/docs/en/quickstart

nailer an hour ago

We've had this discussion since Eazel Linux desktop popularized bash | curl in 2001.

> npm install ... is a much better approach to managing installed packages.

No. Until the upcoming version of npm is out, npm will also run arbitrary code. Almost all common installation tools run arbitrary code. Not doing that is sadly the exception for now.

mapontosevenths 33 minutes ago

Isn't executing arbitrary code kind of the entire point of NPM though? Any chance you have a link to something that describes their plans?

nailer 27 minutes ago

DanMcInerney an hour ago

I've worked a lot with MiMo in my project that pits LLMs against each other in games (clankerfights.ai). It is a very very good model for the price. MiniMax I'd say is smarter, but MiMo really touches near pareto frontier.

greenleafone7 an hour ago

It was already open-source `https://github.com/anomalyco/opencode`

mrnotcrazy an hour ago

Isn't Unlimited Context pretty difficult to promise? What exactly do they mean, could I just have two agents locked into a TTRPG back and forth forever?

psychoslave an hour ago

Do you plan to ask them some master plan to live forever?

nmfisher 2 hours ago

Good timing, I was looking for alternatives earlier today. opencode didn't install properly and I wasn't a fan of oh-my-pi and nanocoder.

MiMo code (via my z.ai coding plan) is very pleasant so far, nice UI and seems to respond faster than Claude Code. It might be injecting much less cruft into the conversation.

I also got access to the mimo-2.5-pro ultraspeed model yesterday, which is really quite snappy. It does cost more than DeepSeek, though, so I'm not sure whether it's worth it yet. Definitely fast though.

cyanydeez 2 hours ago

is it local compatible and does it have telemetry?

qskousen an hour ago

it does have telemetry, enabled by default, that sends metrics to tracking.miui.com, including what model you are using. it can be turned off by environment variable (MIMOCODE_ENABLE_ANALYSIS=false), and yes it still has all the normal OpenCode provider logic so it will work with other/local models. it also automatically looks for updates and fetches a mimo model list, including when the telemetry is off, though those can also be disabled.

telemetry enabled by default and named "analysis" is not great.

MemoryHoleHQ an hour ago

macOS binary (mimocode-darwin-arm64.zip ) seems broken: "“mimo” is damaged and can’t be opened. You should move it to the Trash."

haunter an hour ago

No, you are just experiencing the best of Apple. How dare you download non notarized binaries on your own computer? Do you have a license for that?

Terminal > sudo xattr -rd com.apple.quarantine > Drag and drop the app into terminal > enter and enter your password

MemoryHoleHQ 31 minutes ago

Strange, I reckon I installed Tahoe just a while ago and still didn't have a similar issue, but I remember on previous MacOS versions the error message for unotarized binaries, was to warn that there was indeed a security issue with the binary, not that it was simply "damaged".

A bit crappy on Apple's side.

Thank you.

codedokode 18 minutes ago

"damaged" by not paying 99 bucks.

bel8 36 minutes ago

the OS is broken, in this case.

jadar 2 hours ago

I'm kind of surprised the demo UI is macOS. Are they mainly using Apple products to develop these things?

rurban an hour ago

The more advanced devs all use apple laptops, sure.

dgellow an hour ago

Who isn’t?

bobim an hour ago

I'm slapping debian on any crap hardware around, but that's just me with different ideological standards.

joshmarinacci 2 hours ago

That is an incredibly annoying grunge font. And what is the point of the hidden image in the background that reveals under your mouse cursor.

sheept 2 hours ago

It's interesting that it renders Chinese in a TUI. I wonder if that breaks anything that assumes a character is always a column wide.

rurban an hour ago

Only worked for about 5m, then Too many requests.

reactordev 2 hours ago

Looks an awful lot like OpenCode

croes 2 hours ago

> MiMoCode is built as a fork of OpenCode.

That’s why

emulio an hour ago

Why is OpenCode awful?

miroljub 37 minutes ago

Hm, can I just use free tokens without using MiMo-Code?

OpenCode or pi.dev are enough. I don't like CC-style agent lock-in, regardless if it's Anthropic or Xiaomi doing it.

phplovesong an hour ago

Any english links?

desipenguin 26 minutes ago

You can change language from the top right-most dropdown, and select English

Alifatisk an hour ago

Top right corner

pelagicAustral 2 hours ago

I got an invite to test their ultra fast model only to be geofenced when trying to use it. Pff!

emayljames 2 hours ago

I wonder what the minimum required memory specification is

psychoslave 2 hours ago

Is that Open-Source like, run it locally, no phone home included, or open source like the thin front-end layer is all that is actually open-source but it’s an empty shell without the remote API it relies on?

passive 2 hours ago

They default it to talking to a free version of their model (which is incredibly cheap if you decide you like it.)

But it seems trivially easy to run it against local models. Their onboarding guide offers that option, though I have no idea if it changes any functionality.

Pxtl 2 hours ago

The latter. It looks like it's meant to be a batteries-included agent to promote their free-for-a-limited time AI service that it connects to by default.

psychoslave 2 hours ago

Ok, fair enough compared to the rest of the proeminent actors I guess, but quite confusing from dev point of view. Lately I started to experiment with model like Qwen2.5 on local. Good enough to ask simple question, but didn’t manage to do anything remotely close a agents I started to experiment with through Copilot.

Pxtl an hour ago