ChatGPT is OpenAI's assistant, backed by the GPT-4.1 and successor model family. It handles chat, coding, image generation, voice, and file analysis, with web, desktop, and mobile apps. The same models are available to developers through the OpenAI API and SDKs.

Highlights

Broadest feature set — chat, images, voice, file analysis
Large ecosystem and integrations
Cheaper "mini" models for high-volume API use
Strong, widely benchmarked general performance

Watch-outs

Closed model and weights
Feature sprawl can be confusing across tiers
Heavy usage gets expensive

ChatGPT is the broadest consumer AI product: if you want one assistant that does chat, images, voice, and analysis, it is the safe default. For pure reasoning and writing many prefer Claude, and for cheapest high-volume API calls DeepSeek or Gemini Flash undercut it. Pick ChatGPT for breadth and ecosystem; shop around when cost or a specific strength dominates.

When to use it

general_users
developers
teams_wanting_one_tool_for_everything

Avoid if

need_open_weights
want_the_lowest_possible_api_cost

From USD 20

Free tierAPI

Free tier with capable default models; Plus (~$20/mo) and higher tiers add usage and features; metered API pricing per model, including cheaper "mini" options.