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 |
|---|---|
| Arena Elo (LMArena) | 1413 |
| SWE-bench | 80.0% |
| Context Window | 256K |
Daily tokens (prompt + completion) routed to GPT-5 on OpenRouter, from Jun 20 to Jul 19, from our own stored daily snapshots. Reflects OpenRouter API demand only. See all models →
Unchanged since Jun 19, 2026 across 31 daily OpenRouter catalog snapshots.