NexAI: Multi-Model AI Chat

NexAI is the only AI chat app that connects you to 9 major AI providers — OpenAI, Anthropic, Google, DeepSeek, Groq, xAI, GitHub Models, OpenRouter, and Ollama — all from one clean, fast interface. No subscription required. No account needed. Your keys, your data, your choice.

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🏆 9 AI PROVIDERS — ONE APP
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Stop switching between apps. NexAI brings every major AI provider together:

• OpenAI — GPT-5.6, and other
• Anthropic — Claude Sonnet 5, Claude 4.8 Haiku
• Google AI — Gemini 3.1 Pro, Gemini 3.5 Flash
• DeepSeek — DeepSeek V4, DeepSeek R1
• Groq — Llama 3.3 70B, Mixtral 8x7B (blazing fast)
• xAI — Grok 4.5, Grok 4 Mini
• GitHub Models — GPT-5o Mini, Llama 3.1 70B, Phi-4
• OpenRouter — 400+, free and paid models
• Ollama — Run any model locally on your device

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🆓 FREE TIER — START CHATTING NOW
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No credit card. No signup. Just open and chat.

• Free cloud models via OpenRouter, DeepSeek, Groq, and GitHub
• Smart provider routing picks the fastest available model
• Daily limits keep the free tier sustainable for everyone
• Upgrade anytime with your own API key (BYOK)

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🔑 BRING YOUR OWN KEY (BYOK)
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Already have API keys? Add them to NexAI and unlock everything:

• Add keys for any of the 9 supported providers
• Use your existing OpenAI, Anthropic, or Google subscriptions
• Per-provider key management with validation
• Your keys stay on your device — never uploaded

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💬 AGENTIC AI CHAT
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ChatGPT-style interface with power-user features:

• Upload PDF, Markdown & code files — AI reads them
• Choose from any model across all 9 providers
• Adjust temperature — control creativity from precise to wild
• Chat history sidebar — switch conversations instantly
• Full markdown rendering with code highlighting & tables
• Multi-model comparison — test up to 4 models side-by-side

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⚡ POWERFUL AI TOOLS BUILT IN
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• Smart Reply — Get 4 perfect replies in different tones
• Text Summarizer — Condense any text into key points
• Text Enhancer — Polish grammar, clarity, and tone
• Code Reviewer — AI-powered code analysis
• PDF Reviewer — Summarize documents in seconds
• ATS Resume Analyzer — Optimize your resume for job apps
• Code Explainer — Understand any code in plain English
• Nutrition AI Analyzer — Enter foods, get beautiful charts with Calories, Protein, Carbs, Fat & micronutrients

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🎨 BEAUTIFUL DESIGN
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• Stunning OLED dark mode with glassmorphism
• Clean light mode for bright environments
• High-contrast Black & White theme for accessibility
• Smooth animations, 60 FPS, lightweight
• Swipe navigation between Home and Chat tabs

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🔒 PRIVACY YOU CAN TRUST
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• No account required — download and use instantly
• API keys encrypted on-device with hardware-backed storage
• No analytics on your conversations
• No data sold. Ever.
• Optional offline mode with on-device AI (coming soon)

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💎 PRICING
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• Free tier: Chat with free models, use AI tools (daily limits)
• BYOK: Add your own keys for unlimited access to paid models

Whether you're a developer reviewing code, a professional polishing writing, a student tracking meals, or a privacy advocate — NexAI is the AI assistant built for you. Nine providers. One app. Your choice.

Download NexAI free today.