Blog
/
Alex Shapiro
Alex Shapiro, co-founder of Atomic Chat

Alex Shapiro

Alex Shapiro is the co-founder of Atomic Chat and a local AI enthusiast. He writes about local language models, quantization, and practical model comparisons.

Follow Alex on LinkedIn and X (Twitter).

filter

GPT-6.1 Terra Alternatives You Can Run Locally

GPT-6.1 Terra specs and benchmarks, plus six open-weight alternatives you can run locally, with GGUF picks for 8 GB to 96 GB of memory.

Calendar icon

10/28/26

Reading time icon

8 min

How to Run Nemotron 3.5 Bolt E4B Locally: GGUF, Hardware and Benchmarks

Run Nemotron 3.5 Bolt E4B on Linux with an NVIDIA GPU. Check official GGUF benchmarks and memory figures, then use the pinned llama.cpp CUDA setup.

Calendar icon

10/23/26

Reading time icon

12 min

Atomic Chat mascot on an engraved laptop with a flat RTX chip and colored circuit traces on screen, and green RTX Spark lettering below the laptop.

How to Run Local AI on NVIDIA RTX Spark

Run local AI on NVIDIA RTX Spark with Atomic Chat. Set up local chat, image generation and an OpenAI-compatible API.

Calendar icon

10/16/26

Reading time icon

4 min

A film-director mascot beside a desktop monitor showing a generated video sequence and a local graphics card.

Best Local AI Video Generators Compared on Quality, Speed and VRAM

Compare local AI video generators on quality, speed and VRAM, with RTX 4090 benchmarks, example clips and an Atomic Chat setup guide.

Calendar icon

10/9/26

Reading time icon

16 min

A 12 GB graphics card beside a laptop showing the eight local models reviewed in this guide

Best Local LLMs for 12GB VRAM in 2026

Eight local LLMs for 12GB VRAM: exact GGUF files, RTX 3080 Ti speed and memory figures, plus Snake and physics tests on an RTX 4070.

Calendar icon

9/30/26

Reading time icon

15 min

Claude Sonnet 5.5 beside local AI models on a desktop computer, illustrated in black and white

Claude Sonnet 5.5 Alternatives Compared

Compare Claude Sonnet 5.5 with Opus, Fable and GPT-6 Astra, then choose a local Qwen, Ornith or Bonsai model for your hardware.

Calendar icon

9/29/26

Reading time icon

13 min

Jev and Laya playing Battleship, with blue Laya lettering as the right character's head and the Atomic Chat mascot as referee

Jev 1.13: Can You Run It Locally? Laya Setup Guide

Can you run Jev 1.13 locally? Learn how it works, see our Jev vs Laya Tetris demo, and set up Laya as an independent local alternative.

Calendar icon

9/25/26

Reading time icon

12 min

Qwen character with a blue model logo on its white head, painting a mountain landscape on a desktop monitor beside a GPU.

Best Local AI Image Generators in 2026: Apps and Models

Compare local AI image generators, with seven models benchmarked on an RTX 5090. See image examples, generation speed, memory use, and license limits.

Calendar icon

9/25/26

Reading time icon

14 min

Black-and-white halftone illustration of the Atomic Chat mascot and Xiaomi MiMo logo sitting on a graphics card

How to Run MiMo-V2.6 9B Locally

Run MiMo-V2.6 9B locally: compare GGUF files, plan RAM and VRAM, and configure llama.cpp. Includes benchmarks and Atomic Chat compatibility.

Calendar icon

9/25/26

Reading time icon

15 min

Qwen and Google mascots organizing documents in an archive

Best Local Embedding Models for RAG: 7 Models Compared

Compare seven local embedding models for RAG by retrieval quality, indexing speed, query latency, memory use, and licensing.

Calendar icon

9/25/26

Reading time icon

10 min

RTX 3090 Founders Edition in a miniature AI model testing workshop

Best Local LLMs for RTX 3090: 6 Models Tested

Six local LLM builds tested on RTX 3090: speed, VRAM, context limits and coding demos. Compare exact GGUF files, including ternary Bonsai 2.

Calendar icon

9/21/26

Reading time icon

18 min

Qwen, Google, Meta and NVIDIA model mascots carrying an RTX 4090 graphics card on their shoulders

Best Local LLMs for RTX 4090: 6 Models Benchmarked

Six local LLMs tested on an RTX 4090: generation speed, VRAM at 32k, context limits and coding demos. Compare exact GGUF files for a 24 GB GPU.

Calendar icon

9/21/26

Reading time icon

14 min

Cover illustration for the Bonsai 2 27B guide: the Atomic Chat mascot trimming a bonsai tree that grows on a GeForce RTX 5090 graphics card, with a capybara and the Bonsai logo beside it

How to Run Bonsai 2 27B Locally

Bonsai 2 27B is a ternary GGUF build of the Qwen 3.8 27B language model, from 5.95 GB. Hardware requirements, benchmarks and the llama.cpp fork that runs it.

Calendar icon

9/18/26

Reading time icon

18 min

An RTX 5090 graphics card drawn in ink and halftone, with the Qwen, Google, Meta and NVIDIA logos in their brand colours sitting in a row along the top of the card

Best Local LLMs for RTX 5090: Benchmarks

We measured six local LLMs on a real RTX 5090: tokens per second, VRAM at 32k and 128k, and NVFP4 gains. No estimates from memory bandwidth.

Calendar icon

9/18/26

Reading time icon

18 min

8 Claude Code Alternatives for Local Coding in 2026

Compare eight Claude Code alternatives by local-model support, interface, code access, and approvals. Includes OpenCode, Kilo Code, Codex, and more.

Calendar icon

9/16/26

Reading time icon

9 min

Atomic Chat mascot at a desk with eight local AI agent logos in black-and-white halftone

8 Best Local AI Agents in 2026

Compare the 8 best local AI agents in 2026: Atomic Agent, Kilo Code, OpenClaw, Hermes, Claude Code, Cline, Goose, and pool. See setup and privacy.

Calendar icon

9/16/26

Reading time icon

18 min

Small SLM mascot sorting documents beside a larger LLM mascot assembling a puzzle

SLM vs LLM Compared on Quality, Speed and Memory

SLM vs LLM compared across nine local model configurations: quality on 74 tasks, generation speed, memory use, and energy for a classification task.

Calendar icon

9/14/26

Reading time icon

13 min read

Atomic Chat mascot comparing EXL3 and GGUF model files on two weighing platforms

EXL3 vs GGUF: Quality, Speed and VRAM

EXL3 vs GGUF tested on an RTX 5090: compare quantization quality, prompt speed, token generation, and VRAM, with a working ExLlamaV3 setup.

Calendar icon

9/14/26

Reading time icon

13 min read

How to Run GLM-5.3-Flash Locally: GGUF, Hardware and Benchmarks

How to Run GLM-5.3-Flash Locally

Explore GLM-5.3-Flash, a 320B MoE with 18B active parameters: local hardware requirements, benchmarks, and available runtime support.

Calendar icon

8/28/26

Reading time icon

10 min

Best Local LLMs for 32GB RAM or VRAM in 2026 cover

Best Local LLMs for 32GB RAM or VRAM in 2026

The best local LLMs for 32GB of VRAM or RAM in 2026: which quant to pick, exact file sizes, benchmarks, and how much context each model leaves you.

Calendar icon

8/25/26

Reading time icon

12 min

What Are Abliterated Models? How Refusal Removal Works cover

What Are Abliterated Models? How Refusal Removal Works

What abliterated models are, how refusal removal actually works, how they differ from uncensored and jailbroken models, and how to run one locally.

Calendar icon

8/24/26

Reading time icon

12 min

How to Run DeepSeek Harness Locally With Atomic Chat cover

How to Run DeepSeek Harness Locally With Atomic Chat

Run DeepSeek Harness on a local model, step by step: Atomic Chat as the OpenAI-compatible provider, plus permissions, plugins, and fixes for the errors we hit.

Calendar icon

8/24/26

Reading time icon

13 min

Best Local LLMs for 16GB RAM or VRAM in 2026 cover

Best Local LLMs for 16GB RAM or VRAM in 2026

The best local LLMs for 16GB of VRAM or RAM in 2026: the quant to pick, file sizes, benchmarks, and how much context each model really leaves you.

Calendar icon

8/23/26

Reading time icon

12 min

What Is an MCP Server and When Do You Need One? cover

What Is an MCP Server and When Do You Need One?

What an MCP server is, how the Model Context Protocol works, and how to set up, test, and securely use local and remote MCP servers in an AI app.

Calendar icon

8/21/26

Reading time icon

8 min

How to Run Claude Code Locally: Comprehensive Guide cover

How to Run Claude Code Locally: Comprehensive Guide

Step-by-step guide to running Claude Code with a local LLM: install the agent, connect it to Atomic Chat, Ollama, llama.cpp, or LM Studio, and work offline.

Calendar icon

8/20/26

Reading time icon

12 min

Best Local LLM for 8GB RAM or VRAM in 2026 cover

Best Local LLM for 8GB RAM or VRAM in 2026

Compare local LLMs for 8GB RAM or VRAM, including Qwen 3.5, GLM-4.6V-Flash, Phi-4 Mini and Gemma 3, with model sizes and quantization choices.

Calendar icon

8/19/26

Reading time icon

12 min

Self-Hosted LLM: Setup Guide and the Best Models to Run in 2026 cover

Self-Hosted LLM: Models and Setup Guide

Step-by-step guide to running a self-hosted LLM with Atomic Chat: hardware requirements, the best open models of 2026, and how to expose a local API.

Calendar icon

8/15/26

Reading time icon

13 min

What Is a KV Cache in an LLM? Calculator and Detailed Guide cover

LLM KV Cache: Guide and Calculator

Learn how LLM KV cache grows with context. Estimate RAM and VRAM with our calculator and explore TurboQuant compression data.

Calendar icon

8/8/26

Reading time icon

10 min

How to Run DeepSeek V4 Flash Locally: Hardware, GGUFs, and Setup cover

How to Run DeepSeek V4 Flash Locally

DeepSeek V4 Flash needs 70–162 GB on disk. Pick the Atomic Dynamic GGUF that fits your memory, then run it locally with Atomic Chat or llama.cpp.

Calendar icon

8/7/26

Reading time icon

15 min

How to Run Ling 3.0 Flash Locally: Offline AI Setup Guide cover

How to Run Ling 3.0 Flash Locally

Run Ling 3.0 Flash on your own machine: hardware requirements, Atomic Dynamic GGUF builds, and setup with Atomic Chat or the TurboQuant llama.cpp build.

Calendar icon

8/6/26

Reading time icon

10 min

How to Run GLM Locally: A Complete Guide cover

How to Run GLM Locally: A Complete Guide

Run GLM locally with Atomic Chat: pick the right GLM-4.7-Flash or GLM-5.2 build for your hardware, download a GGUF, and chat entirely offline.

Calendar icon

8/3/26

Reading time icon

9 min

How to Run Qwen Models Locally: A Complete Guide cover

How to Run Qwen Models Locally: A Complete Guide

Learn how to run Qwen locally: pick the right model for your hardware, download the best GGUF quantization, and chat offline using Atomic Chat.

Calendar icon

7/30/26

Reading time icon

12 min

How to Run Kimi K3 Locally: A Complete Setup Guide cover

How to Run Kimi K3 Locally: A Complete Setup Guide

Run Kimi K3 locally: hardware requirements, Atomic Chat setup, renting 8x B300 GPUs on Vast, real costs, and the errors I hit along the way.

Calendar icon

7/29/26

Reading time icon

14 min

How to Run Gemma 4 Locally: a step-by-step guide cover

How to Run Gemma 4 Locally: a step-by-step guide

Run Google’s Gemma 4 models on your own machine. Pick the right size for your RAM or VRAM, choose a GGUF quantization, and start chatting locally.

Calendar icon

7/28/26

Reading time icon

8 min

38 Best MCP Connectors in 2026: Supercharge Your AI Models With Model Context Protocol Tools cover

38 Best MCP Connectors in 2026

38 best MCP connectors for 2026: development, documents, databases, web research, cloud, and automation — plus how to use them with local models in Atomic Chat.

Calendar icon

8/17/26

Reading time icon

20 min

SGLang vs vLLM: Which Inference Engine Should You Use? (2026) cover

SGLang vs vLLM: Benchmarks and Use Cases

SGLang vs vLLM compared: RadixAttention vs PagedAttention, benchmarks on unique and prefix-heavy workloads, and when to choose each engine.

Calendar icon

8/4/26

Reading time icon

9 min

Ollama vs vLLM: What's the Best App to Run Local LLMs? (2026) cover

Ollama vs vLLM: Setup and Benchmarks

Ollama vs vLLM compared: setup, model formats, concurrency, and real benchmarks — plus when each tool is the right choice for serving local LLMs.

Calendar icon

8/2/26

Reading time icon

12 min