GPT-4 Turbo Preview
RetiredThe 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...
The first-party endpoint is retired. Partner-channel availability is tracked separately. Retirement: 2026-03-26
Replacement reference: gpt-5Pricing
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❓GPT-4 Turbo Preview Frequently Asked Questions
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