Large Language Models (LLMs)
Explore 43 curated Large Language Models (LLMs) AI tools on WithAI.Top. Compare standout products by pricing model, use case, and core capabilities.
Large Language Models (LLMs) is evolving fast. This category page on WithAI.Top is designed to help users compare the leading tools, understand common capabilities, and find the best fit for different workflows.
Featured Platforms
Nous Portal
Nous Portal is the account, model catalog and tool gateway behind Hermes Agent from Nous Research. One sign-in unlocks hundreds of frontier and open models, hosted tools for search, scraping, image generation and browser use, and one-click cloud hosting, with everything billed to a single prepaid credit balance instead of separate provider API keys.
MiniMax
MiniMax is an AI foundation-model platform covering frontier coding with MiniMax M3 and its 1M-token context, H3 omni-modal video generation, Speech 2.8 voice synthesis and Music 3.0. Developers reach every model through one pay-as-you-go API or a monthly Token Plan subscription, while MiniMax Code, MiniMax Design and Audio bring agentic coding plus image, video and audio content creation to non-developers.
Explore Directory
43 tools
Inception Labs
Inception Labs builds Mercury, a family of diffusion large language models (dLLMs) that generate many tokens in parallel instead of one at a time. Mercury 2.5 delivers frontier-class reasoning with sub-300ms time to first token, 5-7x higher throughput and up to 70% lower cost per task. Access is through an OpenAI-compatible API, chat playground and enterprise deployments.
Sakana AI
Sakana AI is a Tokyo-based frontier AI research company that ships practical products. Its flagship, Sakana Fugu, is a multi-agent system delivered as a single API that orchestrates the world's best models for complex tasks, with subscription and pay-as-you-go plans. The company also offers Namazu, an LLM specialized in Japanese, Marlin for analyst research reports, and Sakana Translate and Chat. Fugu is available worldwide except the EU and EEA.
Arena
Arena (arena.ai, formerly LMArena) is the official AI ranking and LLM leaderboard platform where users chat with two anonymous AI models side by side and vote on which responds better. Those votes power a public, community-driven leaderboard for large language models, image models, and code models through real-world evaluation. Anyone can join free, test the latest frontier and open models, and help shape the rankings that developers and researchers use to compare AI capabilities.
FastRouter
FastRouter is a unified LLM gateway that gives developers one OpenAI-compatible API for 200+ models from providers such as OpenAI, Anthropic, Google, and xAI. It adds automatic model routing, fallbacks, caching, spend caps, role-based access, guardrails, and per-request observability, while passing provider token prices through with no markup on any plan, including the free tier.
Kitool.AI
Kitool.AI is an AI coding workspace that puts Claude Code and Codex behind one account and one API key. It offers transparent usage-based billing, a model plaza with per-million-token prices, and routing that can cost less than paying each vendor directly. Configure it once in VS Code, JetBrains, or the terminal on macOS, Windows, or Linux.
Crompt AI
Crompt AI is a web-based AI workspace that bundles frontier language and image models from OpenAI, Anthropic, Google and xAI in one interface. Switch between GPT, Claude, Gemini and Grok mid-conversation, generate images with Nano Banana or Ideogram, run deep research, chat with PDFs and summarize YouTube videos, all under one credit-based subscription instead of several separate AI bills.
Electron Hub
Electron Hub routes a single OpenAI-compatible request to more than 600 language, image, audio and embedding models from over 40 providers. A price-, latency- and health-aware router picks the cheapest healthy upstream, failing over automatically when a provider degrades. Developers get one key, usage-based credit billing, scoped proxy keys, an API console, a playground, an agent runtime and integrations for coding agents such as Claude Code, Cursor and Cline.
claude-mem
claude-mem keeps structured project memory outside the chat. An open-source engine captures decisions, discoveries, and fixes locally, while CMEM Pro adds hosted observation, cloud sync, and a private MCP link. Recall synced notes from Claude Code, Cursor, Codex, Gemini CLI, Windsurf, or ChatGPT, or keep everything local-first on your own machine.
RunInfra
RunInfra, from RightNow, is a hosted inference platform that serves open models behind one API key compatible with both the OpenAI and Anthropic SDKs. It publishes per-token pricing with cached-input discounts, keeps each agent session on the replica that already holds its context, and reports cache hits in usage, so effective input rates land far below list price.
Modelflare
Modelflare is a pay-as-you-go LLM API gateway that gives developers one OpenAI-compatible endpoint for 76+ text, image and video models. Each model exposes several routing groups priced between roughly 1.5% and 20% of official API list rates, so teams can trade cost against stability per request. A built-in dashboard tracks API keys, request logs, latency, token usage, cost and cache-hit guarantees in one place.
Shannon AI
Shannon AI is an expert-level uncensored assistant built for red-teaming, LLM safety research and security analysis. It combines frontier and open-weight models served on its own GPU cluster with persistent memory, web search, custom skills, vision and transparent chain-of-thought reasoning, then maps findings to NIST AI RMF, ISO/IEC 23894 and SOC 2 controls for audit-ready signed reports and reproducible test suites.
AIHubMix
AIHubMix is an OpenAI-compatible API gateway that aggregates hundreds of AI models, including GPT, Claude, Gemini, Grok, Qwen, DeepSeek and GLM, behind one endpoint and one key. Developers get unified chat, responses and embeddings interfaces in one place, per-model token pricing, free model access, an in-house LLM router, and a console for managing keys, usage and billing.
Merlin
Merlin is a free AI chat assistant from Foyer that puts leading models, including ChatGPT, Gemini, Claude and Mistral, behind one login. Ask questions on any website from a Chrome extension, summarize YouTube videos and PDFs, draft emails and posts, generate diagrams, and chat with your own documents. It works on web, iOS and Android, with 102 free queries every day.
Api.Airforce
Api.Airforce is a unified AI gateway that routes requests to 600+ models, including Claude, GPT, Gemini, DeepSeek, Grok, Qwen and Midjourney, through a single OpenAI-compatible API. Pay-as-you-go credits cost up to 90% less than official providers, with automatic failover, smart routing and a free tier to start building today. It also ships integration guides for popular coding agents, chat clients and CLI tools.
DeepInfra
DeepInfra runs open models as metered APIs. Developers call text generation, embeddings, reranking, speech recognition, text to speech, image, music and video endpoints, paying per token or per execution time with no contracts or upfront costs. Dedicated GPU deployments, custom model hosting and owned B300 clusters are also offered, all running on DeepInfra's own inference-optimised hardware in US data centers.
UnoRouter
UnoRouter is a unified AI API platform that gives developers one OpenAI-compatible key for 253+ models across 49+ upstream providers, including 132 free models and 121 pay-per-use routes. Add credit or subscribe for extra credit, then point coding agents, chat clients or its built-in browser chat at a single endpoint. Free models need no account, and pay-as-you-go credit never expires.
Ollama
Ollama is a developer tool for running open-weight large language models locally, with a CLI, desktop app, and a library of downloadable models. Its local server exposes an OpenAI-compatible API that plugs into coding agents, editors, and scripts. Ollama Cloud adds hosted capacity and larger frontier models, so teams can mix private local inference with pay-as-you-go cloud usage.
Notrack
notrack.ai is a free, anonymous AI chat that needs no account: ask anything and get direct, uncensored answers in 46 languages. Sessions are stateless, with no profile, no analytics and no cross-site tracking, and nothing you type is used to train models. Paid Plus and Pro plans add photo, voice and memory limits rather than unlocking the chat itself.
Token Harbor
Token Harbor is a unified API gateway that gives developers one OpenAI-compatible endpoint for Anthropic, OpenAI, Gemini, Zhipu, Kimi and other leading models. Usage-based token billing sits alongside free monthly allowances and prepaid monthly Passes, and the service promises that the model ID you send is the model that runs, with data-retention controls you set yourself.
Apmix
Apmix is an AI API aggregation platform that puts eleven model families — GPT, Claude, Gemini, Grok, DeepSeek, Qwen, GLM, Kimi, MiniMax, MiMo and Hunyuan — behind one API key and one monthly subscription from $4.99. Point Claude Code, Codex CLI, Cursor or your own code at api.apmix.ai using OpenAI- or Anthropic-compatible endpoints, and track a single weighted-token allowance instead of paying six providers separately.
Writingmate
Writingmate is an all-in-one AI workspace that puts 350+ chat, reasoning, image and video models from OpenAI, Anthropic, Google, xAI, Meta and DeepSeek behind one subscription. Users chat, compare up to four models at once, analyse documents, search the web, save reusable prompts and Agents, and generate images or clips from a prompt, all from a browser app with a documented API and MCP server.
PackyAPI
PackyAPI is an enterprise AI gateway that connects Claude, GPT, Gemini, Grok, DeepSeek, Qwen and other providers behind one OpenAI-compatible and Anthropic-compatible endpoint. Teams prepay wallet credit, pick a token group whose multiplier sets the billing rate, then track calls, errors and spend in the console. The pricing page lists 68 models on pay-as-you-go token billing or pay-per-view image and video billing.