Stackable Studio vs HammerAI

Stackable turns your imagination into brick builds. Just describe what you want - "a red police car", "a small castle tower", "a spaceship with wings" - and our AI designs a real, buildable brick model with step-by-step PDF instructions and a 3D preview. WHAT YOU CAN DO • Chat to create - describe any build in plain English • Get a real preview - high-resolution 3D renders, multi-angle views • Build it for real - downloadable PDF instructions, step by step • Save and share - keep your builds in one place, share with friends • Scan your bricks - point your camera at a pile, build with what you have • Browse community builds - see what others have made • Build by hand - snap your scanned parts together yourself, then get instructions • Play brick games - quick sorting rounds that earn you free builds • Take the daily challenge - everyone builds from the same parts, then you vote PRO MEMBERSHIP Stackable is free to start with 5 AI builds a month. Stackable Pro unlocks 50 builds a month, billed monthly or yearly with a 3-day free trial. • 50 builds every month • Early access to new features • Cancel anytime ABOUT STACKABLE We're a small team that loves building with bricks and what AI lets us do with it. Stackable is built around the idea that the magic is in the building - and that everyone should get to build the thing in their head, even if they don't know which brick to grab first. LEGAL Terms of Use: https://stackable.studio/terms Privacy Policy: https://stackable.studio/privacy Stackable is not affiliated with, endorsed by, or sponsored by the LEGO Group. LEGO® is a trademark of the LEGO Group.

Chat with thousands of AI characters, roleplay your own stories, generate images, and hear characters speak. HammerAI is the private AI roleplay and character chat app: free to chat, no ads, no tracking, and your chats and characters can stay on your device. THOUSANDS OF AI CHARACTERS Browse community-created characters across every genre: fantasy, sci-fi, romance, horror, comedy, and more. Each has a unique personality, backstory, and conversation style. Create your own AI characters from scratch or import them. AI ROLEPLAY & CHARACTER CHAT Immersive roleplay conversations with AI characters that remember context and stay in character. Set up your own persona so characters know who they're talking to. Characters have their own voice, and you can choose from over 300 AI voices in multiple languages. GROUP CHATS Add multiple AI characters to the same conversation. Watch them interact with each other and with you. Each character maintains their own personality. STORY WRITING Co-author stories with AI. Build worlds with lorebooks that define your world's lore, history, and rules so the AI stays consistent across long narratives. You can also generate images for your stories. IMAGE GENERATION Generate character portraits, scenes, and illustrations with dozens of AI art models including Flux, Stable Diffusion, and more. TEXT-TO-SPEECH Over 300 AI voices in multiple languages. Give each character their own voice. CHOOSE YOUR AI MODEL Most AI chat apps lock you into a single black-box model. HammerAI lets you pick from leading open-source LLMs tuned for roleplay and storytelling: Mythomax, Hermes, Mistral, Lumimaid, Magnum, Euryale, WizardLM, and more. Try a few, find your favorite, or let HammerAI pick a sensible default. Want to dial it in further? Adjust temperature, context window, and system prompt to match your style exactly. Not finding the LLM you want from our options? Use any LLM in the world with our proxy LLM support. PRIVATE BY DESIGN Most AI chat apps store every conversation and character on their servers. HammerAI gives you the choice: keep your chats and characters local on your device, or sync them to the cloud if you prefer. Either way, we never run ads and never sell your data. WHY HAMMERAI? • Free to chat: no ads, no trackers • Private: chats and characters can be saved locally on your device • Thousands of AI characters: community-created, growing daily • Group chats: roleplay with multiple AI characters at once • Story mode: co-author interactive fiction with AI • Image generation: dozens of AI art models including Flux, Stable Diffusion, and NovelAI • 300+ AI voices: text-to-speech in multiple languages • Lorebooks: world-building that the AI remembers • Custom personas: be whoever you want • No account required: start chatting immediately BUILT BY ONE DEV HammerAI is a passion project built by a single developer with help from a small contracting team. No venture capital, no growth team, no engagement metrics to optimize against you. Every dollar from a subscription goes back into server costs, better AI models, and continued development. You're supporting indie software made by someone who actually uses it. Download HammerAI today. Roleplay an epic fantasy, write a sci-fi novel, brainstorm with a creative partner, or just see where the chat takes you. Your library is yours: what fills it is up to you.