OpenAI: GPT-4 Turbo Preview
GPT-4 Turbo Preview is an older preview variant of GPT-4 Turbo that has since been fully superseded, offering a 128K context window but no benchmark data of its own. Businesses should use current GPT-4o or GPT-5 series models instead.
Assessment date: March 14, 2026
Our methodology takes into account a range of factors including pricing, functionality, capabilities, benchmark performance, and real-world applicability. Rankings are reviewed and updated regularly as new models are released. Issues with our rankings? Contact us
The preview GPT-4 model with improved instruction following, JSON mode, reproducible outputs, parallel function calling, and more. Training data: up to Dec 2023. **Note:** heavily rate limited by OpenAI while in preview.
Capabilities
Architecture
| Modality | Text → Text |
| Tokenizer | GPT |
Model Information
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $10.00 | $0.010000 |
| Output | $30.00 | $0.030000 |
Live Performance
Live endpoint metrics — refreshed every 30 minutes.
