ChatGPT

ChatGPT is the most widely used AI assistant in the world, combining GPT-4o's writing and reasoning capabilities with live web browsing, image generation, and a code interpreter in a single interface. For writing tasks, it covers an unusually wide range: one-line social copy, long-form research reports, email drafts, structured documents, and anything in between. Web search keeps drafts grounded in current information rather than training data alone, which matters for news, industry trends, and anything time-sensitive.

For teams, Custom GPTs allow you to build pre-configured versions with specific instructions, personas, and knowledge bases baked in — so a marketing team can have a GPT that knows the brand voice, and a support team can have one trained on the product documentation.

GPT-4o's performance on complex writing tasks has improved substantially with recent releases, narrowing the gap with more specialised writing tools. Getting started requires nothing beyond creating an account. Most teams that adopt ChatGPT find it becomes the default starting point for any unstructured writing task within weeks.

The breadth of GPT-4o's capabilities is genuinely useful for teams that need a single tool across multiple types of work. A content team member can write copy, generate a supporting image with DALL-E 3, and analyse a competitor's document in one session. A developer can write code, have it explained, and generate documentation for it. For teams that cannot justify multiple AI subscriptions, ChatGPT's coverage reduces the need.

Custom GPTs deserve more attention than they typically get. A marketing team can build a GPT pre-loaded with brand voice guidelines, product messaging, and audience context, then share it with every writer. Support teams can build a GPT trained on their documentation and FAQ database. Each Custom GPT behaves like a pre-briefed version of ChatGPT specific to your context, reducing the overhead of prompting from scratch each session.

ChatGPT's accuracy on factual claims has improved substantially with GPT-4o and the addition of live web browsing, but hallucination remains a risk for highly specific factual questions. The live web search is available on paid plans and makes a meaningful difference for content where current information matters — industry trends, market data, recent events. Verification remains important for any high-stakes factual claims.