Alternatives to OpenAI o

Claude is Anthropic's AI assistant for long-document analysis, coding, and agentic work in one chat-and-Cowork surface.

ChatGPT is OpenAI's AI chat assistant for reasoning, Codex coding, deep research, voice and agentic work on one subscription.

DeepSeek is a free reasoning and web-search chat built on the V4.1-Flash multimodal model, plus a usage-billed developer API.

Free emotional-intelligence-focused AI assistant from Inflection AI, built for conversation quality rather than benchmark chasing

Mistral sells sovereign AI: frontier open-weight models you can own, self-host, or run on EU inference.

Chatbox AI is a multi-model chat client with a local knowledge base, real-time web search, and a desktop Work Mode agent

Renamed: Google Bard became Gemini on February 8, 2024. Everything Bard did now lives in Gemini.

Nova AI App is a multi-model consumer chatbot with an Apple Watch app, sold from $9.99/mo for unlimited messages.

Gemini is Google's multimodal AI assistant for text, image, audio, and video work inside Gmail, Docs, and Search.

Perplexity is a cited AI answer engine that footnotes every answer with a live source link you can verify.

Meta AI is a free AI assistant for chat, real-time web search, and image generation inside Facebook, Instagram, WhatsApp, Messenger, and

Chinese-language search engine that returns cited, synthesized answers instead of link lists.

Fullmoon runs small Llama and DeepSeek models entirely on your Apple device — free, offline, open source.

OpenChat is a multi-model AI chat app that opens GPT, Claude, Gemini, Llama, DALL·E and Stable Diffusion in one interface.

Grok is xAI's assistant that searches the web and X live, reasons step by step, and generates images, video, and code in one thread.

Google's sovereign Gemini for U.S. government agencies, built for FedRAMP High and IL5 environments

Native AI chat client for Mac, iOS, and iPad with a system-wide keyboard extension and Siri access.

Open-source, cross-platform AI assistant that generates full interactive screens and runs locally — with persistent memory and an autonomous heartbeat.