gpt-5-1 - iAIFeed

Developer migrating an app between GPT-5 and GPT-5.1 API versions

How to Migrate from GPT-5 to GPT-5.1 Without Breaking Your App

GPT-5.1 changes token pricing, reasoning defaults and output formatting. Here is a migration checklist that keeps your prompts, costs and latency under control.

September 20, 2026

Person using GPT-5.1 on a laptop for everyday work tasks

How to Use GPT-5.1 for Everyday Work Tasks

GPT-5.1 is OpenAI's flagship chat model with a 400K context window and adaptive thinking. Here is how to set it up and use it for…

September 20, 2026

Tag: gpt-5-1

How to Migrate from GPT-5 to GPT-5.1 Without Breaking Your App

How to Use GPT-5.1 for Everyday Work Tasks