GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.
- Provider
- OpenAI
- Context Length
- 400,000 tokens
- Input Types
- text, image, file
- Output Types
- text
- Category
- GPT
- Added
- 8/7/2025
Benchmark Performance
How GPT-5 compares to its closest rivals across industry benchmarks
Metric: % Resolved
Metric: Accuracy %
Metric: Accuracy %
Metric: Intelligence Index
| Specification | GPT-4o (extended) Previous | GPT-5 Current | Change |
|---|---|---|---|
| Context Window | 128K | 400K | |
| Reasoning Support | |||
| Input Types | text, image, file | text, image, file | |
| Output Types | text | text | |
| LMArena Score | 1440 | 1455 | |
| Input Price (per 1M) | $6.00 | $1.25 | |
| Output Price (per 1M) | $18.00 | $10.00 |
Frequently Asked Questions
Common questions about GPT-5