GPT-5 is OpenAI flagship model with breakthrough reasoning capabilities. It demonstrates significant improvements in mathematical reasoning, code generation, and multi-step problem solving. With a 256K context window and support for text, image, audio, and video inputs, GPT-5 is one of the most versatile models available. It powers ChatGPT and is available through the OpenAI API.
| Benchmark | Score |
|---|---|
| LMSYS Arena | 1413 |
| SWE-bench | 80.0% |
| Context Window | 256K |