Reduce prompt size with fine-tuning
Fine-tune instructions into GPT-3.5 Turbo to shorten prompts by up to 90% and cut costs.
Fine-tuning GPT-3.5 Turbo allows businesses to shorten their prompts while maintaining similar performance. Early testers reduced prompt size by up to 90%, speeding up API calls and cutting costs.
Significant cost reduction and faster API response times.
By embedding instructions and specific data into the fine-tuned model, the need for lengthy prompts is eliminated.
Fine-tuning GPT-3.5 Turbo enables embedding instructions directly into the model. This can reduce prompt size by up to 90%, leading to faster API calls and lower costs.
Instead of repeatedly providing context or instructions in each prompt, fine-tuning makes the model inherently understand the specific requirements, thus shortening the input needed.
- GPT-3.5 Turbo fine-tuning and API updates ↗OpenAI · OpenAI News · Aug 22, 2023 · paraphrased
First seen on Subvolts Aug 22, 2023. Updated Sep 11, 2026. Spotted a problem? Tell us.
- GPT-3.5 Turbo fine-tuning and API updatesOpenAI · OpenAI News · Aug 22, 2023
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
- HeuristicCombine fine-tuning with other techniquesMaximize fine-tuning effectiveness by integrating it with prompt engineering, retrieval, and function calling. · 10 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 tipFree training tokens for GPT-4o and GPT-4o miniGet free training tokens for GPT-4o and GPT-4o mini through September 23. · 5 min
- ChecklistFine-tuning data safety checkEnsure training data for fine-tuning meets safety standards before model training. · 5 min
- Code snippetNew fine-tuning jobs API endpointUse the /v1/fine_tuning/jobs endpoint for new fine-tuning jobs with pagination and extensibility. · 5 min
Questions people ask
- Which AI tools does this work with?
- The sources used it with ChatGPT.
- Where did this come from?
- OpenAI (OpenAI News). Subvolts collected, normalized and credited it; the link above opens the original.