ChatGPTGPT-5
OpenAI's flagship chat assistant — the broadest, most-used AI product on earth.
✍️Writing & chatFreemium · from $20
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8 alternatives to Grammarly, ranked by category fit, capability overlap and pricing. Click any entry to see a head-to-head comparison with Grammarly.
OpenAI's flagship chat assistant — the broadest, most-used AI product on earth.
Anthropic's chat assistant — preferred by developers and writers for its tone and reasoning.
Google's chat assistant with 1M+ token context and tight Workspace integration.
Compare GPT-5, Gemini 2.5, Claude 4, DeepSeek R1 and Llama side-by-side.
xAI's conversational LLM with a real-time view of X and a less-filtered tone.
Free online AI humanizer — rewrites AI text to read like a human wrote it.
Analyze, score and optimize AI prompts for any model.
Desktop app for deep, multi-threaded conversations with AI.