Claude is Anthropic’s AI assistant, built with a focus on safety, accuracy, and long-context reasoning. Preferred by developers for coding precision and instruction-following. Powers Amazon’s Alexa+. Free plan available. Paid plans from $30/month.
Grok is xAI’s AI assistant with real-time access to the X (Twitter) platform data stream and a 2 million token context window — the largest of any major AI tool. The API starts at $0.20/M tokens. Free tier available. SuperGrok plan at $30/month.
Gemini is Google’s AI assistant powered by the Gemini model family, with the largest context window of any major AI tool — 1 million tokens. Built into Google Search, Gmail, Docs, and Meet. Free plan available. Paid plans from $19.99/month.
DeepSeek is the open-source AI model that shocked the industry in January 2025 — GPT-4-level performance trained for approximately $5.5 million, according to DeepSeek’s own technical report. The web interface is completely free with no message limits. API starts at $0.28/M tokens, up to 95% cheaper than GPT-5.
ChatGPT is OpenAI’s flagship AI assistant — the most widely used AI tool in the world with over 300 million weekly active users as of February 2025 (OpenAI blog). Powered by GPT-4o and the GPT-5 series, it handles text, images, voice, code, and data analysis. Free plan available. Paid plans from $8/month.
