Free tier at chat.openai.com includes GPT-4o with usage limits. ChatGPT Plus is $20/month for higher limits and priority access.
Go to chat.openai.com. Sign up with email or Google. The free tier includes GPT-4o — more than enough to start.
Go to Settings > Personalization > Custom Instructions. Tell ChatGPT your role, what you use it for, and how you want it to respond. This applies to every conversation.
GPT-4o for most tasks. o3 (on Plus) for complex math and reasoning. DALL-E 3 for images — just describe what you want and it creates it.
Click 'Explore GPTs' to find specialized versions built for specific tasks — coding, writing, research, SEO. Many are free.
ChatGPT Projects let you keep related conversations together with shared context. Create projects for different areas of your life or work.
Free gets GPT-4o with daily limits. Plus ($20/month) gets higher limits, o3 model access, and DALL-E 3 image generation.
Depends on the task. See our ChatGPT alternatives guide for a head-to-head comparison.
See our ChatGPT productivity prompts and prompt template library.