Open Weights AI
The best 50 Open Weights AI tools - Free & Paid
Explore 50 AI for Open Weights AI
OpenArt is an AI art generator that provides powerful tools for you to generate and edit images, especially artist assets, that you can directly use and edit to improve.
Freemium
Weights & Biases is an AI developer platform that simplifies machine learning experiments with tools for tracking, visualizing, and optimizing models. It enhances workflow efficiency through interactive visualizations and collaboration features.
Freemium
Weightlifting.ai creates personalized Olympic weightlifting programs that adapt volume, intensity, and exercise selection in real time. Users set session frequency and lift priorities; the AI tracks performance, recovery, and taper timing for balanced, age‑appropriate training and competition peakin
Free
OiiOii.ai is an AI animation agent team offering end-to-end production with role-based workflows (Art Director, Scene Designer, Scriptwriter, etc.), drag-and-drop references, chat refinement, one-click short-form rendering, multi-style character/IP creation, asset tracking and export-ready files.
Freemium
OpenCreator is a generative AI workstation that integrates over 20 AI models for efficient content creation. With an intuitive interface, it enables quick visual production for various applications, including marketing and education, while simplifying the creative process.
Free trial
- $19/mo
OpenRouter gives one API key to access 300+ models from 60+ providers, SDK‑compatible, with visual routing, automated fall‑back, edge hosting, data‑policy controls, and agentic tools for building efficient autonomous workflows.
Freemium
FitnessAI applies AI‑driven progressive overload, adjusting sets, reps, and weights in real time to sustain strength gains. It customizes 5–30 minute workouts for any equipment, syncs Apple Watch data for adaptive recovery, and offers guided demos with 3D body scans.
Freemium
OpenCraft AI is a secure, multi‑model copilot that unifies GPT‑4, Claude, and Gemini. It preserves context across model switches, keeps uploaded files accessible, auto‑formats chats into reports or decks, and generates images with consistent voice tone for streamlined workflows.
Paid
OpenSEO offers AI-driven SEO research and brand visibility tools for keyword discovery, rank tracking, domain and competitor analysis, backlink checks and site audits, plus AI citation and mention extraction and model comparison to guide content planning and fixes.
Subscription
- $10/mo
Weavy is an AI-powered design platform that streamlines creative workflows for professionals. It offers integrated tools for image manipulation, compositing, and collaboration, enhancing project refinement through features like inpainting and z-depth extraction within a user-friendly interface.
Subscription
- $19/mo
OpenDream is a web‑based AI art generator that turns text prompts into images using models such as Dreamlike, Stable Diffusion, and Deliberate. It offers templates for logos, anime characters, and 3D objects, enabling rapid high‑resolution creations for commercial use.
Freemium
The AI Workspace is a tool that generates imaginary images using AI. It allows users to train models using photos and supports custom identifiers and prompts.
AI-Flow is a no‑code platform enabling creators to build and run AI workflows via drag‑and‑drop, integrating models from OpenAI, StabilityAI, Anthropic, and Replicate for batch image, video, and content summarization.
Paid
gpt-oss playground provides open-weight demos of gpt-oss-120b and 20b for infrastructure testing, distributed and on-device inference, benchmarking, API integration, and reproducible research, with adjustable reasoning levels and visible-reasoning for diagnostics. Demo-only; validate outputs.
Freemium
AirOps merges AI, SEO, and analytics to guide content prioritization and creation. It aggregates insights from SEO, AI signals, and GA4, turns them into structured workflows, and exports to CMS, streamlining collaborative editing and automated tasks.
Free trial
Learn AI, ML, and data science through free tutorials, live coding playgrounds, and 100+ hands‑on projects. The curriculum covers core machine learning, regression, and deep learning, with specialized projects and a 3,958‑question quiz to reinforce knowledge.
Free
Heights AI Coach autonomously generates weekly tasks, tips, and reminders for course creators, coaches, and digital marketers, analyzing goals and progress to maintain momentum. It integrates with existing Heights tools and keeps all coaching data private.
Subscription
- $2919/mo
OpenEvidence is a secure medical information platform for U.S. healthcare professionals, facilitating question logging, managing protected health information, and streamlining prior authorization letter writing with access to trusted clinical findings and insights from over 10,000 care centers.
Free
Aigazou is a free AI image generator that allows users to create high-quality images by simply describing their vision, without requiring any login or account creation. It supports both English and Japanese prompts and offers commercial usage with a focus on user privacy.
Free
OpenDialog is an enterprise AI platform that deploys purpose‑built agents for regulated insurance workflows, boosting quote conversions, automating policy queries, and recovering lost revenue while ensuring compliance and auditability for agencies.
Freemium
Opper is a unified AI gateway and agent control plane that routes requests across 200+ models and modalities, offering centralized model routing, automated fallbacks, budget caps, LLM observability, a multi-provider testing playground, OpenAI-compatible SDK, and enterprise privacy/compliance control
Usage Based
removerai.io is a web-based AI tool that automatically removes backgrounds from images, preserving fine details like hair and edges. It requires no installation, allows manual refinements, and exports high-resolution transparent PNGs for e-commerce, design, and marketing.
Free
AI‑driven research platform that supplies monthly stock picks, real‑time 5%‑move alerts, earnings previews, and analyst‑validated recommendations. It merges proprietary data, machine‑learning models, and hedge‑fund expertise to pinpoint buy‑and‑hold opportunities for investors.
Freemium
Luw.ai produces fast, high‑quality interior and exterior renderings from photos or sketches. Dedicated models auto‑redesign spaces, adjust lighting, suggest palettes, and offer 3D generation, furniture import, and export to CAD formats, with video flythroughs and mood‑board conversion.
Freemium
Uncensored AI delivers a chat platform featuring Claude Opus, Gemini, Grok, and MiniMax M2‑Her. It supports text, audio, image, and code interactions, including image‑to‑video via Image Studio. API beta and usage stats benefit developers, writers, educators, and researchers.
Freemium
Uncheck AI evaluates text for AI signatures, then rewrites it into human‑like, spam‑free prose that passes detectors such as GPTZero, Turnitin, Copyleaks, and ZeroGPT. It removes OpenAI watermarks, supports SEO‑friendly, multilingual content, and gives simultaneous detection scores.
Freemium
- $12.99/mo
Opinly automates SEO growth with real‑time audits, keyword tracking, competitor benchmarking, AI‑generated content, CMS integration, and AI‑driven backlink placement to boost rankings.
Freemium
- $8
BlackInk AI turns text prompts and images into custom tattoo designs in seconds. Users can adjust style, shape, detail, and body placement, generate cover‑ups, and download high‑resolution graphics—all in over 100 supported languages.
Freemium
- $3
OpenClaw is a personal AI assistant that automates email, calendar, task and chat workflows—clearing inboxes, composing and sending messages, scheduling events, checking reservations, integrating chats and cloud services, with persistent memory, background jobs and developer-friendly self-hosting an
Free
Coachify uses AI to create custom workout plans aligned with user goals, offering animated tutorials for proper form. It tracks sets, reps, and weights, generates progression reports, and provides real‑time coaching feedback within a single mobile app.
Freemium
Uwear AI converts single garment photos into studio‑quality images, offering multi‑angle shots, 5‑second clips, and optional 4K upscaling. Its batch processing, model‑consistent branding, and virtual try‑on with Shopify integration streamline catalog creation and enhance shopper engagement.
Free trial
SiteForge Open App is an AI-powered tool that generates wireframes and automates content creation for optimized website structures. Overcome blank page syndrome with automated site planning and AI-generated website structures.
Free trial
OC Maker AI generates anime-style characters from text or image inputs, offering inpainting/outpainting, pose control, animation and video-to-video conversion, 3D/Live2D export, and fine-grained style editing for illustration, animation, and game asset workflows.
Free
- $8
Peak Strength AI generates personalized, sport-specific strength training plans for enhanced performance, focusing on strength, speed, and explosiveness, with progress tracking and mobility exercises.
Free trial
WeShop AI is a cloud studio that generates high‑resolution product images and marketing videos. It integrates multiple AI image generators and offers tools for virtual try‑on, background removal, pose generation, and advanced post‑processing, streamlining e‑commerce visual workflows.
Subscription
- $399/mo
Openfabric is a decentralized layer‑one blockchain that lets AI developers, data providers, and infrastructure partners build, train, and deploy algorithms on a permissionless network. Its marketplace offers ready‑made tools, and token holders can stake for governance and liquidity.
Freemium
AIFaceSwap lets you swap faces in photos, GIFs, and videos without sign‑up. It supports JPG, PNG, WebP, batch processing, and gender swapping. Results are watermark‑free, auto‑deleted after 24 hours, and mobile‑friendly.
Free
Generate custom Fakémon with varied type combos. Use preset quick picks, tweak designs, iterate via text, view community gallery, share creations, and access a marketplace. Sign in with Google to save. JavaScript required.
Freemium
AliveAI is an AI tool designed to effortlessly generate realistic, uncensored images and lifelike characters, empowering users to explore limitless creative possibilities.
Free
YourMove AI automates dating profile creation, photo enhancement, and message drafting. Within seconds it generates tailored openers, bios, and quick responses, offering data‑driven feedback to boost visibility and match rates, freeing users to focus on actual dates.
Freemium
OpenAgents is an open-source framework for building and operating scalable, interoperable AI agent networks. It provides tools to launch, connect, and orchestrate agents with live monitoring, enabling collaborative applications and workflows.
Freemium
Finlo uses AI to generate monthly, ten‑stock portfolios based on proven investment strategies. Users pick a strategy by risk tolerance, copy holdings to their brokerage, and receive pre‑market email updates with performance metrics versus the S&P 500.
Paid
Free.ai provides a comprehensive, free platform with over 400 AI tools, enabling users to experiment with diverse AI capabilities including chat, image generation, code creation, and more. It’s a versatile tool for exploration and application of AI technologies.
Free
TattoosAI turns text prompts into tattoo designs across 18 styles—geometric, watercolor, Japanese, etc. Users customize colors, download concepts, and preview placements. A surprise button selects random styles for quick inspiration.
Subscription
- $4.99/mo
JuggernautAI delivers personalized strength training plans that adapt to user data and performance logs. It offers a 250‑exercise library with videos, a warm‑up planner, plate calculator, RPE tracker, and a community forum for technique feedback.
Paid
- $34.99