In Depth
GPT-4, released by OpenAI in March 2023, represents a significant leap from its predecessor GPT-3.5. It can process both text and image inputs and produces text outputs, making it a multimodal model. It demonstrates human-level performance on many professional and academic benchmarks, including passing the bar exam in the 90th percentile.
For businesses, GPT-4 powers a wide range of applications from customer support automation to code generation, document analysis, and creative writing. It is available through OpenAI's API and through the ChatGPT Plus subscription. Its improved reasoning capabilities make it suitable for complex tasks that require multi-step logic, nuanced understanding, and careful instruction following.
GPT-4 also introduced notable improvements in safety and alignment compared to earlier versions. It is less likely to produce harmful content and better at following detailed instructions. Subsequent updates like GPT-4 Turbo and GPT-4o further improved speed, cost-efficiency, and expanded context window sizes up to 128K tokens.