GPT-4 Turbo for advanced tasks with large context
Use GPT-4 Turbo for complex instructions, specific formats, and large documents up to April 2023.
GPT-4 Turbo (gpt-4-1106-preview)
Tasks requiring careful instruction following, specific format generation (e.g., XML), and processing large amounts of text.
It has a 128k context window, knowledge up to April 2023, improved instruction following, and supports JSON mode.
November 2023
GPT-4 Turbo is recommended for tasks needing precise instruction following, generating specific formats like XML, or processing large texts. Its 128k context window and updated knowledge base make it suitable for complex applications.
It offers a significantly larger context window (128k tokens), knowledge of world events up to April 2023, and improved performance on instruction-following tasks.
For simpler tasks where cost is a major factor and the larger context or advanced instruction following is not needed.
- New models and developer products announced at DevDay ↗OpenAI News · OpenAI News · Nov 6, 2023 · paraphrased
First seen on Subvolts Nov 6, 2023. Updated Sep 11, 2026. Spotted a problem? Tell us.
- New models and developer products announced at DevDayOpenAI · OpenAI News · Nov 6, 2023
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
- Cost tipReduce GPT-6 Luna costs with cached tokensUse cached input tokens to lower costs for high-volume tasks. · 5 min
- Setting tipControl GPT-6 Luna reasoning effort for efficiencyAdjust reasoning_effort to balance model performance and cost for focused tasks. · 1 min
- Model pickGPT-4o fine-tuning for custom applicationsFine-tune GPT-4o for higher performance and accuracy in specific use cases. · 15 min
- ToolGPT-3.5 Turbo fine-tuning APICustomize GPT-3.5 Turbo models with your own data for improved performance on specific tasks. · 15 min
- Cost tipManage GPT-6 Luna costs for large token promptsBe aware of increased pricing for prompts exceeding 272K input tokens. · 5 min
- Cost tipUnderstand GPT-6 Luna pricing for batch and fast modesBatch and Flex modes offer 50% rates, while Fast mode doubles costs. · 5 min
Questions people ask
- Which AI tools does this work with?
- The sources used it with ChatGPT.
- Where did this come from?
- OpenAI News (OpenAI News). Subvolts collected, normalized and credited it; the link above opens the original.

