GPT-5
The original GPT-5 API reasoning model combines coding, mathematics, instruction following, and tool-assisted work. Unlike the routed ChatGPT product, the API identity denotes the reasoning model with configurable minimal, low, medium, and high effort. It accepts text and images and generates text, supporting long documents and multi-step developer workflows.
2025-08-07
Unreleased
Undisclosed proprietary architecture
Proprietary
Specifications
- Parameters
- Unreleased
- Architecture
- Undisclosed proprietary architecture
- License
- Proprietary
- Context Window
- 400,000 tokens
- Max Output
- 128,000 tokens
- Training Data Cutoff
- Sep 30, 2024
- Type
- multimodal
- Modalities
- textimage
Benchmark Scores
Advanced Specifications
- Model Family
- GPT-5
- API Access
- Available
- Chat Interface
- Not Available
- Variants
- gpt-5-2025-08-07
Capabilities & Limitations
- Capabilities
- reasoningcodemathvisionstructured outputstool use
- Known Limitations
- Can produce incorrect factual claims or code; important results require independent verification.
- Notable Use Cases
- software engineeringdocument analysisreasoning assistants
- Function Calling Support
- Yes
- Tool Use Support
- Yes