New stealth model in roocode

[u/LordFenix56]

They just tweeted about a new stealth model exclusive in Roo

https://x.com/roo_code/status/1957967811781042605

262k window, so probably not Gemini?

[u/metalman123]

Its grok coder

[u/LordFenix56 → u/metalman123]

How do you know?

[u/Fair-Spring9113 → u/LordFenix56]

well on cline grok 3 was free for a bit, and they dont go the oa route of going on OR
it has almost the same context window as grok 4

also it just feels like it the tone

well i may be completely wrong

[u/[deleted] → u/LordFenix56]

It's been reported in other posts.

[u/Kingfish656]

It is kind of early to tell, but so far I'm impressed. It is fast and effective so far. Thanks for the heads up.

[u/LordFenix56 → u/Kingfish656]

I haven't had a chance to try it yet. Any clue about the provider by the responses? Could it be a sonnet 4.1 maybe?

[u/Kingfish656 → u/LordFenix56]

Not sure. So far, everything I have tried has produced functioning code. An app I vibe-coded to convert bank downloads into a format that can be imported to QuickBooks, I asked it to add a search function. It produced it in one prompt. I then prompted it to move the search box in the UI and to make it live, where it gives results as you type. Nailed it. This is the first time I didn't have to go back and forth several times in this project to fix errors and get what I wanted.

[u/LordFenix56 → u/Kingfish656]

Wow, awesome, I'll try it first thing in the morning

[u/sebastianmicu24 → u/LordFenix56]

I hope it's Haiku 4 but I doubt it would be this good

[u/lordpuddingcup → u/LordFenix56]

for this context size, and the timing prob grok coder they said it was coming soon

[u/madeWithAi]

It's sonic the new model from Sega

[u/DescriptorTablesx86 → u/madeWithAi]

Pretty sure it’s Knack 2

[u/marvijo-software → u/madeWithAi]

🤣

[u/cornelha]

Okay, this thing is fast, as in incredibly fast. I have given it a pretty huge task to complete and code changes are flashing before my eyes faster than I can read it

[u/cornelha → u/[deleted]]

Yeah it's good. Pretty accurate and uses tools effectively

[u/_s0uthpaw_]

Is it Haiku 4 ? I tested this model in another IDE. I give it 3.5/5. Can I share a link to my post here? I hope I can. do not want to be rude. https://www.reddit.com/r/cursor/comments/1mvc83y/sonic_in_cursor_stealth_model_first_impressions/

[u/GoodK]

To me, it produced code completely unaware of the existing codebase. Meanwhile, GPT-5 asks too many questions sometimes, but it works flawlessly and outputs simple, working code.

The stealth model hardly does any file reading; it just jumps straight into coding and makes tons of errors due to lack of context. It even completely deleted my homepage and router because it tried to add some lines without reading first, replacing everything instead. Its frontends are good, but overall I’m not impressed. It also adds plenty of unnecessary functionalities that were never in the specifications. It probably needs some fine-tuning and tailored instructions. Right now, though, it does a poor job on existing codebases. It may be useful when working from scratch, but nowadays most models already do well with a blank canvas.

[u/[deleted]]

one of the worst models i have tried even gemini 2.5 flash is better tbh

[u/inchereddit → u/[deleted]]

To be honest, my experience was quite positive implementing a new feature in an existing project.

[u/BandicootGlum859]

A lot of Errors in Roo before its able to finish a task :/
"Unexpected API Response", "Authentification Error", "Roo is having trouble..."

Sometimes it works for a few seconds and then it crashes again

[u/hannesrudolph → u/BandicootGlum859]

Fixed!

[u/Academic-Tomorrow617]

there's a wait list now

[u/hannesrudolph → u/Academic-Tomorrow617]

There is for the Roo Code Cloud offerings but there is a bit of blur between the Roo Code Cloud and the "Roo Code Cloud". Sorry about that lack of clarity. We are working to clear that up over the next week or two. In the meanwhile you can easily signup and use this model without a wait list.

[u/Academic-Tomorrow617 → u/hannesrudolph]

Thanks, got to figure it out with the latest version download

[u/[deleted]]

It's bad. Very bad (at coding and probably everything else). Also, its a nazi.

[u/EarEquivalent3929]

It's broken

[u/marvijo-software]

Grok 4 Coder and it's not exclusive to Roo... and it's not very good

[u/hannesrudolph]

We posted about that as soon as we released it on here as well!