All AI tools

A recipe for online RLHF and online iterative DPO.

OnlineImageUpscaler

OnlineImageUpscaler is a free online AI image upscaling tool that can boost the resolution of JPG, PNG, and WEBP images to 2K, 4K, 8K, or even 16K in one click (login required and subject to credit limits), while also enhancing clarity, sharpening edges, removing blur, restoring details, and even colorizing black-and-white old photos. No design experience or complex settings are required, and registered users can batch process up to 20 images. It is suitable for scenarios such as professional photography, e-commerce product images, large-format printing, social media content, real estate and architectural displays, and app and website graphics.

Onlook

Open-source AI visual editing tool, design changes automatically sync to code

Only Babes

Pleasures.ai is a photorealistic NSFW image generator that allows users to create uncensored images using AI technology. Users can sign up for a subscription starting at $14/month, granting them unlimited access to generating images. The process involves describing the desired image, adjusting setti

Onlychar ai

NSFW AI character chat platform with no filters and 40,000+ characters.

Onlyfans ai chatbot chatpersona ai

AI tool for OnlyFans creators to boost engagement and revenue through optimized chatting.

Onlyfree ai

A platform providing free access to the latest LLM models and gen-AI apps.

Onlyinterns

Other AI tools

Connects interns with Silicon Valley startups using AI-powered job applications and candidate ranking.

Onlywaifus

Pleasures.ai offers an uncensored and photorealistic NSFW image generator, OnlyWaifus.ai. The AI-powered tool allows users to create unlimited NSFW images of waifus without requiring technical knowledge. The service has generated over 3.4 million images so far and offers various styles for customiza

ontheia

Ontheia is an open-source, self-hosted AI agent platform that emphasizes data sovereignty and compliance. It supports multiple model providers (Claude, GPT, Grok, Gemini, Ollama, and any OpenAI-compatible model), multi-user and role-based access control, and natively connects to external tools based on the open Model Context Protocol (MCP). The platform includes built-in Agent Skills reusable modules, Cron scheduled tasks, a visual workflow engine, long-term memory based on pgvector (RAG), and inter-agent delegation and collaboration. Data always stays on your own servers, achieving GDPR compliance by design through PostgreSQL row-level security. At least one AI provider API key is required for conversations, and memory features additionally require a provider that supports embeddings.

Ontocraft

AI data analysis

GenAI-powered analytics platform simplifying AI for enterprises with self-serve analytics.

Onverb

AI platform for custom system prompts and personalized AI conversations.

Oopsbusted

AI search

OopsBusted uses AI to check if your partner is on dating apps.

oorlogsbronnen-mcp

Access historical WWII records, photographs and documents from the Netherlands (1940-1945) via the Oorlogsbronnen (War Sources) API.

opa

Open Policy Agent (OPA) is an open source, general-purpose policy engine.

opa-mcp-server

OPA and Rego policy toolkit wrapping the OPA CLI and Regal: format, lint, evaluate, test and benchmark policies, manage the OPA REST API and explain decisions.

Opal

AI learning

Opal is an AI-powered study tool that helps students learn faster and remember more.

Opalai scanto3d

AI design

Spatial AI tools for 3D CAD, BIM, and data analysis.

opcua-mcp

📟 - Connect to OPC UA-enabled industrial systems.

Open challenges in LLM research

This is a review article written by Huyenchip on the open challenges in large language model (LLM) research, summarizing 10 major research directions in the current LLM field, including reducing hallucinations, optimizing context length, multimodal fusion, improving speed and reducing cost, designing new architectures, developing GPU alternatives, making agents usable, improving human preference learning, and more. Based on the author's conversations with people in industry and academia, the article aims to provide directional reference for researchers and practitioners.

Open Generative AI

Open Generative AI is a free AI image and video generation studio on the Muapi platform, where users can use more than 200 models, including Flux, Midjourney, Kling, Veo, Seedance, and others, to generate images and videos in a single interface, and can use it without registering an account.

Open Interpreter

AI agents

Open-source tool enabling language models to run code on your computer.

Open love

AI virtual companion app offering diverse characters and personalized conversations.

Open Paper

AI productivity

AI Assistant for Research Papers

Open Source Software

Last update: Today. #1 directory of open source equivalent. Find, Contribute, and Submit open-source projects. (OSS software, OSSsoftware)

open-agreements

Fill standard legal agreement templates (NDAs, SAFEs, NVCA docs, employment, cloud terms) and produce signable DOCX files.

open-dreamer

Open Dreamer is an open-source JAX/Flax (NNX) implementation of the Dreamer 4 world model, focused on training and running a world model in real time on Minecraft/VPT-style game data. The repository provides the complete training pipeline code: including a causal video tokenizer, an action-conditioned latent dynamics model, and tools for generating rollouts and computing the FVD quality metric. Users can train the tokenizer, tokenize a Minecraft/VPT-style MP4 dataset, train the latent dynamics model, generate videos, and evaluate FVD. The project also provides a real-time demo in the browser, where you can enter a generated Minecraft world and, via the Game ⟷ Dream toggle, transition frame by frame between real gameplay footage and model-generated footage.

open-gpt.app

AI search

open-gpt.app is a platform for a collection of ChatGPT apps where users can use a variety of ready-made ChatGPT apps in seconds or create their own apps. The platform provides a rich set of app examples covering fields such as entertainment, writing, programming, and daily life, such as Pokémon data lookup, movie recommendations, regex generation, Midjourney prompt generation, grammar correction, summary generation, startup plan inspiration, resume editing, blog writing, Xiaohongshu copy generation, weekly report generation, tarot divination, and more. Users can quickly invoke these apps without programming to meet diverse text-processing needs.

open-greenhouse-mcp

AI productivity

Greenhouse ATS for recruiting teams: role-based profiles (full, recruiter, read-only), pipeline views, analytics, candidate search and bulk operations.

open-interpreter

AI agents

Open-source agent that runs code locally in response to natural language, supporting Python, JS, shell, and more.

open-managed-agents

Open Managed Agents (OpenMA) is an open-source, self-hosted alternative to Claude Managed Agents and the OpenAI Agents API, maintained by openma-ai on GitHub. It is used to run agents with persistent sessions, sandboxed tools, memory, encrypted credentials, and crash recovery on your own infrastructure. Users can self-host with Node.js or Docker, deploy to Cloudflare, or use the hosted version of OpenMA (app.openma.dev) directly. The platform supports bring-your-own model keys (BYOK), allowing free choice of model, harness, and sandbox, and provides Claude-compatible /v1/agents and /v1/sessions APIs as well as an OpenAI Agents API-compatible /openai/v1 endpoint, along with a Console UI.

open-mcp

Turn a web API into an MCP server and add it to the open-source open-mcp.org registry.

open-ontologies

Ontology engineering for OWL, RDF and SPARQL: validate, query, diff, lint, version and govern knowledge graphs on an Oxigraph triple store.

Open-Qwen2VL