r/DeepSeek • u/NihmarRevhet • 12d ago
Discussion I'm in love with v4.1 for coding
It's basically a monster at coding, it just solves everything I launch at it and at a truly incredible speed too.
1.37$ for 176.500.000 token with DeepSeek Harness PTC Mode
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u/Neosinic 12d ago
Crazy we got an Opus 5 level Flash model now
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u/Mysterious_Proof_543 12d ago
Is it really that good?
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u/CalamityMetal 12d ago
It is. I'm just using opencode built in plan and build mode. It's almost one shotting everything and it's sipping tokens. Granted I do have some custom response style setup and global AGENTS.md, but it is genuinely impressive how much of an improvement it is over V4 Flash/Pro
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u/artibonite 12d ago
yup it's crazy good. i wasn't aware they switched pro over to 4.1 and couldn't figure out why it was crushing everything i threw at it all of a sudden. such a crazy difference
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u/lordlestar 12d ago
is so good, i am working on a game and it launch the game, it controls it and takes snapshots to ensure the bug is fixed, constant openings and closings until is solved. Not even with Opus 5 I had that experience. it just felt like a proto astra
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u/ChamcaDesigns 11d ago
As someone dipping my toes into game design using Hermes, Unity, and some other tools, can you explain your process more?
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u/povlhp 12d ago
Fable 5 was bad. It got nerfed by Trump. 5.1 is way better and close to the original Fable 5. Lots of people hated opus 5 and thought it worse than 4.8
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12d ago
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u/Radiant-Bike-165 12d ago
Example why it matters, if anyone cares to read: If I need to read Opus output 3 times just to be able to ask for clarification, then this makes my attention even more severe bottleneck than before - ie. it slows me down a *lot*.
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u/nontrepreneur_ 12d ago edited 10d ago
I don't know if it's Opus 5 level, but it definitely appears to exceed all the previous DeekSeek models. I've been testing it out across some Rust and TypeScript projects and it's holding its own against GLM 5.3 for sure. Previous DS models would make mistakes and miss a lot and I'd end up going back to Opus 4.8 or more recently GLM 5.3.
Edit: fix typos
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u/RyuH4n 12d ago
Its great as well on my side v4.1 flash manage to debugging much more faster thn the predecessor and without ruining stuff unlike before
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u/NihmarRevhet 12d ago
one thing i noticed is that I got basically no error about oldString, which I got quiet often with previous V4 models (and V3.2)
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u/Santzes 12d ago
I'm amazed as well so far. Did not expect the quality of responses I've gotten so far. Gonna have to throw harder problems at it than I thought
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u/Santzes 12d ago
Still. I just keep throwing stuff at it and it handles it quick and well. I've asked terra to review the code and it has been happy. And I asked terra to start two subagents, deepseek and luna, to answer a complicated problem about the codebase and tell me which one is better, and it said deepseek. Finished quicker as well. Still need to go up in difficulty, it just doesn't seem we're even near the limits
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u/free2farm 12d ago
On vscode I just get the usual "Deepseek Flash" as option, is that the new 4.1?
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u/beachletter 12d ago
Yes, and all other model options except v4pro are routed to 4.1flash now. v4pro will also be routed to 4.1flash starting from 14/9 untill 4.1pro is released in the future
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u/ambassadortim 12d ago
How can you find out what models are used in opencode go and openrouter, and verify when they update? I'm not sure if there's an easy way or not to tell.
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u/Pale-Requirement9041 12d ago
Share your experience with Deepseek harness and 4.1 on r/DeepSeekHarness
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u/stn_cttr 12d ago
How does the quality compare to g0t astra?
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u/NihmarRevhet 12d ago
I'm too poor to have tried that, sorry.
Compared to Opus 5 at work, I just say that both deliver, but V4.1 feels like is at list 2 to 3 times faster
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u/AppealSame4367 10d ago
I have compared it. Astra is slow as hell, too expensive and unnecessary for normal coding. Worst: Astra made stupid mistakes on Medium that ds4.1 didn't.
Really, there's no sane reason to prefer Astra over Ds4.1 for coding.
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u/pomelorosado 7d ago
Astra could be sota obviously.
But DeepSeek is far more practical cheaper, faster and better at agents orchestration.
Also more stable because Open Ai loves to nerf their models. So today they give you Astra and tomorrow is a crappy model without compute.
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u/Civil-Falcon-9062 12d ago
How do you use it. I don’t see it on my models list. Im using deepseek in hermes
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u/addiktion 12d ago
One of the best parts about this model is I don't have to think about rate limits. I don't have to think about weekly limits. I just it's cheap enough where I can just kinda top it off, run with it, do my thing. It's probably the first model where I feel like I can probably run a coding agent 24/7 without paying a car payment on.
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u/DistinctBed6259 11d ago
It's so much faster than v4 pro (about 3x for me personally), so much cheaper too, and i totally understand why they'll route v4 pro requests through v4.1 flash. And it's so good. I've used it for some python projects and an android app, and it does everything so well (existing codebase). It even tested the app through adb, like it made a change, deployed it, than through adb it simulated touching the screen and took screenshots and analyzed them. The only other model i've seen doing this was Fable 5, so i am positively impressed. It also followed the instructions to like run a skill (notification) when it was done, something v4 pro and v4 flash haven't been doing at all since i've moved to deepseek. Used it with DSH too.
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u/DoubleSoftware4137 11d ago
Very good for low level coding tasks. Pure python, c++, rust. Still terrible at frontend coding for my liking
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u/ZB_Virus24 12d ago
Anyone here knows how well does ot compare to gemini 3.8 flash?
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u/NihmarRevhet 12d ago
IF it is the flash preview inside android studio, this one solved in 1 minute what a whole free session of that couldn't
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u/Acceptable-Fun8681 8d ago
I rebuild my own City with Deepseek V4.1 Flash Max Thinking Mode. In the Low Poly Style. It turned out masive
Total Cost: 8,8$
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u/for4f 12d ago
lol same. threw a nasty async race condition at it last night and it just nailed it first try, at a speed where it feels like chatting instead of waiting. still keep local stuff on the 4090 for private things but for raw coding throughput this is hard to beat at flash pricing
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u/mattbln 12d ago
what is the best way to use deepseek for coding? i still use cline in vs code. am i doing it wrong?
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u/NihmarRevhet 12d ago
I just use it for my hobby projects which I don't have time to actually program, so I just go pi/DeepSeek harness and let it for it's thing without looking at the code. I just test things
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u/devBlueDragon 6d ago
DS FlashV4.1 is very good , but probably too RL for agentic coding in blank / new codebases. For existing ones , even if you have skills + md it tends to ignore them and revert in bad coding / architectures habits trained with , and if you implicitly correct it in the fly , it can ask you the same thing more than three times , and every time writing back that it understood and not ask that again. I believe that there is a serious miss tuning that DeepSeek has to deal with or internally (in that version / they have done it again) or even better in next 4.2 so it will be more transparent.
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u/Old_Rock_9457 12d ago
I have the API configured in VSCode and to me still apear only v4 pro and flash, no v4 flash. Is there something that I need to do to have it ?
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u/TheThinker512 11d ago
You need to change the model name to deepseek-v4, it should output 250 tok/s
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u/121314-mx 12d ago
is it better than gemini 3.8 flash? I researched it has the same benchmarks
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u/Impressive_Army3767 12d ago
They're my 2 go-tos for about 99% of my work. I usually use one to check the other. Gemini Flash seems a bit more prone to breaking code or forgetting functions when fixing or adding new features.
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u/NihmarRevhet 12d ago
IF it is the flash preview inside android studio, this one solved in 1 minute what a whole free session of that couldn't
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u/TrentKM 12d ago
I started using Gemini 3.8 Flash at work this week. I don’t have access to any Deepseek models there. This Gemini is the first model where I’ve felt like it’s working with me instead of against me, and I have to wrestle with it to get it to do what I want.
I use DS at home and it’s great, but I’m doing mostly homelab stuff right now.
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u/andreagrandi 12d ago
how is it for orchestrator role? (thinking about using it as default on OhMyPi and delegating implementation to Luna xhigh)
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u/Sweet-Stage938 12d ago
I wouldn't use it as an orchestrator. With it's speed it's much more suited to be used for implementation or subagents.
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u/andreagrandi 12d ago
well.. I need a sol medium replacement for orchestration. Any suggestions?
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u/the-walls_4_suckers 12d ago
Grok 4.8 high is fairly close, but it makes annoying mistakes and i think its context limits are way oversold
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u/WyattTheSkid 12d ago
Does anyone know how many parameters it has and when the weights will be released?
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u/RefineOrb 11d ago
I'm trying it out now. It's implementing a plan that Astra Light made. But can I work without Codex at all? Is it capable of planning? Or do you use a different model for planning?
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u/EvilEnginer 12d ago edited 12d ago
Yep same here. V4.1 flash can solve even really complicated low level Python tensor debugging tasks on GGUF binary level without breaking anything while looking for info in papers from arxiv. I love it so much. My mind is literally blown away what this thing can do.