HammerAI vs Pit Crew Hub

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.

### Pit Crew Hub — Your Ultimate Gran Turismo 7 Companion Transform your phone or tablet into a professional race engineer and high-performance digital cockpit display. Whether you’re chasing tenths on qualifying hot-laps, fighting for podiums in Daily Races, or surviving tire-wear stints in manufacturer endurance cups, Pit Crew Hub gives you the real-time telemetry edge to out-brake, out-pace, and out-smart the competition in Gran Turismo 7. #### Find Lap Time Where It Counts Stop guessing where you’re losing time. Real-time trajectory delta tracking shows you down to hundredths of a second whether that wider corner entry or early throttle pick-up actually gained you pace. Compare your throttle, braking, and coasting traces side-by-side with your best stint or reigning World #1 benchmark laps to spot earlier braking points and missed apexes instantly. #### Master Vehicle Dynamics & Tire Life Feel what your car is doing before it slides. * **Cockpit-Matched Tire Thermals**: Intuitive front and rear temperature monitoring positioned right in your peripheral vision lets you manage tire degradation and prevent blistering on long stints. * **G-Force Friction Circle**: Stabilized cornering load dynamics and a 3-second weight-transfer trail help you master trail braking deep into the corner and maximize mechanical grip on exit. #### Level Up Your Driver Rating (DR) Climb the GT Sport Mode ladder with complete visibility into your rating: * **Live Cockpit DR Tracking**: See your current rating points, 24-hour gains, and the exact score needed to unlock your next license promotion (from B to A, or A to A+). * **Progression Curves**: Graph your climb over 7-day, 30-day, and all-time stints to see how vehicle choices and practice routines impact your rank. #### Built for Wheel Rigs & Cockpit Mounts Mount your device directly to your wheel base or sim rig. Switch on **"Unc Mode"** for ultra-large, high-contrast gear, speed, delta, and tire numbers that you can absorb with a split-second micro-glance without taking your eyes off your braking markers. #### 100% Zero-Fuss Plug & Play No cables, no complex PC setups, no calibration headaches. Just boot up Pit Crew Hub on your home Wi-Fi while GT7 is running on your PS4 or PS5—the app detects your car and starts streaming telemetry instantly. Strap in, hit your marks, and find your fastest lap yet!