ChatGPT

ChatGPT is the most widely used AI assistant in the world and, in 2026, the front door to OpenAI's GPT-5.6 model family. Whether you are drafting a contract, refactoring a service, reading a 200-page PDF or running a multi-step agent, ChatGPT gives you frontier reasoning in a conversational interface that needs no setup.

What is ChatGPT?

ChatGPT is OpenAI's consumer and business assistant, built on the GPT-5.6 family that reached general availability in 2026. The family ships in three sizes: Sol, the flagship that sets the state of the art across coding, knowledge work, cybersecurity and science while spending fewer tokens than rival frontier models; Terra, the balanced model for everyday work; and Luna, the cost-efficient option for high-volume tasks. Paid users choose an effort level, trading latency for depth of reasoning. Around the models sit connectors, file and image understanding, voice mode, canvas editing, deep research and agent runs that can execute long chains of work on your behalf.

Key Features

• GPT-5.6 Sol, Terra and Luna: Pick frontier reasoning, balanced everyday performance or cheap throughput, with medium and higher effort settings available to Plus, Pro, Business and Enterprise users.
• Agent runs: ChatGPT can plan and execute multi-step tasks — browsing, running code, editing files and calling connected tools — rather than only answering questions.
• Deep research: Long-horizon research runs that read dozens of sources and return a cited, structured report.
• Multimodal input and output: Text, images, documents, spreadsheets, audio and live voice conversation in a single thread, with GPT Image 2 handling image generation since DALL·E was retired in May 2026.
• Connectors and custom GPTs: Wire ChatGPT into Drive, SharePoint, GitHub and internal systems, or publish task-specific GPTs for a team.

Who Should Use ChatGPT?

ChatGPT suits almost everyone, which is precisely why it is the default. Students and casual users can stay on Free or the $8 Go tier. Knowledge workers, developers and analysts get the best value from Plus at $20. Pro at $100 or $200 is aimed at people who run agents and deep research all day and keep hitting limits. Teams that need admin controls, shared workspaces and data-exclusion guarantees should be on Business or Enterprise rather than pooling personal accounts.

Pricing

Free costs nothing and gives GPT-5.3 with tight limits and, in the US, ads. Go is $8/month for more volume, still ad-supported and without the advanced features. Plus at $20/month is the default serious tier. Pro comes in two flavours — $100/month for roughly 5x Plus usage and $200/month for around 20x. Business is $20 per seat per month billed annually or $25 monthly with a two-seat minimum, after OpenAI's April 2026 price cut, and Enterprise is quoted. API access is billed per token and has become markedly cheaper through 2026: Luna dropped 80% and Terra 20% on 30 July 2026, and Sol fell over 20% on 21 August 2026 for a three-month promotional window.

Pros and Cons

Bottom Line

ChatGPT in 2026 is less a chatbot than a general-purpose work surface, and GPT-5.6 Sol is genuinely frontier-class. If you only pay for one AI subscription, Plus at $20 remains the highest-leverage $20 in software. Power users running agents and research all day should look at Pro; teams should skip straight to Business for the admin and data controls. Its closest rivals — Claude for long-form reasoning and Gemini for Google-native workflows — are each stronger in specific lanes, but nothing else covers as much ground as well.