GPT-4 Turbo Preview
RetiredAn OpenAI model with a 128K-token context window. Released on the OpenAI API January 25, 2024, now retired.
Access details: OpenAI API
An alias. The provider can point it at a newer version.
gpt-4-turbo-previewUpdated Sep 23, 2026
Capabilities & limits
- Context window
- 128K
- Maximum output
- 4K
- Image input
- Unsupported
- Tool calling
- —
- Structured output
- Unsupported
Pricing
USD / 1M tokens- Input
- No longer sold
- Output
- No longer sold
No longer sold on the OpenAI API.
Price history
Mar 26, 2026
Input No longer sold per million tokens
Mar 26, 2026
Output No longer sold per million tokens
Technical details
- Parameters
- Not published
- Active parameters
- Not published
- Architecture
- Not published
- Training / knowledge cutoff
- Dec 01, 2023
- Input modalities
- Text
- Output modalities
- Text
From OpenAI
Official announcement ↗Release & lifecycle
- First available
- Jan 25, 2024
- deprecated
- As of Sep 13, 2026
- retired
- As of Sep 23, 2026