GPT-4

service active paid

OpenAI's flagship large language model family released in March 2023. GPT-4 introduced multimodal capabilities (text and image input), significantly improved reasoning, and a larger context window compared to GPT-3.5. The foundation for many production AI applications and established new benchmarks for LLM capabilities.

Implements

Concepts this tool claims to implement:

  • Transformer-based language model with 1.76T parameters (rumored). State-of-the-art performance across reasoning, coding, and knowledge tasks.

  • GPT-4V variant accepts image inputs for visual understanding tasks.

  • Primary interface through OpenAI Chat Completions API with system/user/assistant message format.

  • Native function calling support for structured tool use and agent applications.

Integration Surfaces

  • REST API
  • Python SDK
  • Node.js SDK

Details

Vendor
OpenAI
License
Proprietary
Runs On
cloud
Used By
human, agent, system

Notes

GPT-4 marked a generational leap in LLM capabilities and established the modern era of powerful language models. While newer models (GPT-4o, o1) have since launched, GPT-4 remains widely used and referenced as a capability benchmark.