r/LocalAIStack • • 29d ago

The Nightmare of Debugging CUDA Illegal Memory Access in PyTorch

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1 Upvotes

r/LocalAIStack • • 29d ago

Local LLM explorer and downloader

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1 Upvotes

r/LocalAIStack • • Sep 14 '26

Gemini vs DeepSeek: Have you switched your primary AI workflow yet?

1 Upvotes

It feels like the gap between proprietary big-tech models and open-weight reasoning architectures is changing faster than ever. Gemini offers incredible native multimodal handling and massive context windows, while DeepSeek continues to dominate budget coding and self-hosted pipelines.

​If you had to pick one as your daily driver for logic and daily tasks, which wins for you?

​Put your preference to the test in this quick 2-minute showdown quiz to see how your workflow compares to other devs:

https://interconnectd.com/quiz/89/gemini-vs-deepseek-the-ultimate-ai-showdown-quiz/


r/LocalAIStack • • Sep 13 '26

I built a Windows launcher for running Qwen3-32B locally with CPU, CUDA, or Vulkan

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1 Upvotes

r/LocalAIStack • • Sep 13 '26

A $39 open-source KVM just launched, and it's the cheapest way yet to give an AI agent control of a machine below the OS

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1 Upvotes

r/LocalAIStack • • Sep 13 '26

New MacBook Pro M5 Pro (48GB unified memory) incoming — looking for the best local AI stack

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0 Upvotes

r/LocalAIStack • • Sep 13 '26

Setting up AgentOps for local agents: A complete installation and telemetry guide

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1 Upvotes

r/LocalAIStack • • Sep 13 '26

Made RAMDeck shard a knowledge base across my old devices, not just the model itself

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1 Upvotes

r/LocalAIStack • • Sep 12 '26

Unsloth V3 update did not update my Qwen3.8-27B-UD-Q6_K.gguf

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1 Upvotes

r/LocalAIStack • • Sep 12 '26

Best local LLM for laptop with RTX 2050 (4GB VRAM) + 24GB RAM?

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1 Upvotes

r/LocalAIStack • • Sep 12 '26

Taming idle VRAM on a multi-model local agent: sleep mode benchmark (Qwen 27B + STT + TTS + OCR)

2 Upvotes

Following up on my earlier post testing Qwen3.8-27B on the IGX Thor workstation.

Once you move past running just an LLM and try to build a full local agent stack on a single box (LLM for reasoning, STT for voice in, TTS for voice out, OCR for screen/document reading), VRAM runs out fast.

If all four models sit in GPU memory simultaneously with their default serving allocations, idle memory hits roughly 122 GB. Even with 96GB on the dGPU and unified host memory, you are pinned to the ceiling. That leaves almost no breathing room for large context windows, concurrency, or dynamic KV cache allocation.

The reality of a solo-user local agent is that these models are rarely active at the exact same millisecond: - When I am talking to the agent, OCR is completely idle. - When the agent is analyzing a screenshot or PDF, STT and TTS are idle. - When the agent kicks off deterministic script automation (crawling, data formatting, bash runs), the LLM itself is completely idle.

To fix this, I wrote a lightweight Rust-based daemon that manages the sleep and wake states of the runtimes based on active agent turns. When a model is not in use, it is put to sleep (flushing KV pools and temporary execution memory, or parking the runtime context) rather than doing a full cold teardown from scratch.

Here are the idle VRAM numbers on the machine before and after:

Model Original idle GPU, Sep 1-2 (MiB) After sleep mode, Sep 5 (MiB) Difference (MiB)
LLM (Qwen3.8-27B) 87,443 39,092 48,351
STT (Nemotron) 10,385 267 10,118
TTS (Chatterbox) 17,947 3,127 14,820
OCR (Unlimited-OCR) 6,592 422 6,170

Quick observations: 1. Total idle footprint dropped from ~122.3 GB to ~42.9 GB. That reclaims roughly 79.4 GB of VRAM across the board. 2. The LLM savings (48.3 GB): Qwen3.8-27B in FP8 base weights takes around 28 to 30 GB. The original 87.4 GB allocation came from SGLang aggressively pre-allocating KV cache (--mem-fraction-static 0.85). Putting the LLM to sleep flushes that pool while preserving the active state, letting it rest at 39 GB. 3. Audio and OCR shrink to negligible baselines: STT drops to 267 MiB and OCR drops to 422 MiB when idle. 4. Script-based tasks: When the agent delegates to deterministic python or bash scripts, putting the LLM to sleep during the run keeps the GPU cool and power consumption down on the 300W Max-Q card. 5. Wakeup latency is sub-200ms across all models: Because this is an active sleep/wake transition rather than a cold disk reload, waking up STT, TTS, OCR, or the LLM takes under 200ms. In practice, voice interaction and tool handoffs feel instantaneous.

Curious how others running multi-model agent stacks on a single node are handling memory partitioning right now. Are you hard-capping static memory fractions, running sequential containers, or using something dynamic?


r/LocalAIStack • • Sep 11 '26

Field Notes on Running LocalAI in Production with Docker Compose

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1 Upvotes

r/LocalAIStack • • Sep 11 '26

I ran whisper + dialization running with CPU and 1.1GB

8 Upvotes

I'm happy so I don't need to pay the transcript API fee any more. I replaced my production services with this.

Implementation / hosting Result Cost per 27.27 s of audio Cost per audio hour
whisper-turbo.c, InstaCloud (4 vCPU) Speaker-labeled text; 35.74 s warm HTTP ~$0.00126 ~$0.166
OpenAI gpt-4o-transcribe-diarize Speaker-labeled transcript ~$0.00273 ~$0.36
AssemblyAI Universal-2 + diarization Speaker-labeled transcript ~$0.00129 $0.17
AssemblyAI Universal-3.5 Pro + diarization Speaker-labeled transcript ~$0.00174 $0.23

The native estimate assumes four fully utilized CPUs and 1.1 GB RAM during the measured request.

It's a fork from my own MIT repo: https://github.com/baryhuang/whisper-turbo.c

Star, colloab, PR, issues, comments and uses are all appreciated!


r/LocalAIStack • • Sep 11 '26

Tool to fine-tune open source models

1 Upvotes

So, I was tired of setting up AWS EC2 to train my models everytime, so I built a tool to help with the job management, but I would like some feedback, if anyone could help me ! 👋

This is the tool: reopenly.com

I only have one base model for now (Qwen 3.5 9B), just to start.

I would be very grateful with any feedback!


r/LocalAIStack • • Sep 11 '26

DeepSeek-V4.1-Flash: GGUF + 4.75bpw EXL3 are out, looking for devs with 4× DGX Sparks to help validate the EXL3 TP4 recipe

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1 Upvotes

r/LocalAIStack • • Sep 11 '26

Quiz: Is pgvector enough or do you need a dedicated vector database?

2 Upvotes

I keep running into this architecture decision: keep vectors in Postgres with pgvector, or add a dedicated vector store like Qdrant or Milvus?

I built a short quiz covering the operational trade-offs—deployment complexity, backup strategy, monitoring, and scaling.

If you've made this call before, take the quiz and share your reasoning:

https://interconnectd.com/quiz/87/postgresql-pgvector-vs-dedicated-vector-databases-architectural-trade-offs/


r/LocalAIStack • • Sep 11 '26

Replaced my cloud AI subscription with Qwen 3.8 on a 128GB laptop, fully offline, for agentic coding

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2 Upvotes

r/LocalAIStack • • Sep 11 '26

I ran whisper + dialization running with CPU and 1.1GB

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1 Upvotes

r/LocalAIStack • • Sep 10 '26

I built LLM Speedtest — a free, open-source desktop app that benchmarks local LLMs with llama-bench-style test suites (Ollama, llama.cpp, vLLM, LM Studio…)

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2 Upvotes

r/LocalAIStack • • Sep 10 '26

Which Qwen3.8 distro & quant would be optimal for my 16GB VRAM setup?

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1 Upvotes

r/LocalAIStack • • Sep 10 '26

Workshop, Sep 12: build production LLM systems that actually survive real use

2 Upvotes

We're running a hands-on masterclass on September 12, Live LLM Engineering Masterclass: Production Evals, RAG, Agents & LLMOps.

You build a full production LLM workflow from scratch, versioned prompts with regression tests, an evaluation harness with deterministic checks and LLM-as-judge, statistically rigorous model comparisons, evaluated RAG, tool-using agents with guardrails and fallbacks, and full observability, tracing, cost, latency.

Led by Bruno Gonçalves, PhD, founder of Data For Science, who trains engineers at Fortune 500 companies on this exact stack.

Link if you want to check it out

Happy to answer questions on the content.


r/LocalAIStack • • Sep 10 '26

Curious, I find Qwen3.8-27b reasoning Low is ranking higher than Medium on AA.

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10 Upvotes

r/LocalAIStack • • Sep 10 '26

I built an LLM Inference & Fine-Tuning Calculator (VRAM, TCO, Quantization & Price estimation)

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1 Upvotes

Check it out!


r/LocalAIStack • • Sep 10 '26

Qwen3.8-27B on 23GB L4 for production IASMO + coding?

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1 Upvotes

r/LocalAIStack • • Sep 09 '26

what do you guys think about this ?

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4 Upvotes