Use GPT 5.5 on High Reasoning in ChatGPT for Better Ideas

Melvin Vivas · X post · 2026-06-22 · Open on X

Topics: AI Dev Tools & Productivity, Prompt & Context Engineering · Level: beginner

Summary

A short tip: in ChatGPT, set GPT 5.5 to the high reasoning effort setting. The creator says it gives much better ideas.

Key points

• ChatGPT lets you choose a reasoning effort level for GPT 5.5.
• According to the creator, the 'high' setting gives clearly better ideas.
• Higher reasoning effort usually means slower answers, but better results for brainstorming and harder tasks.

Resources mentioned

• ChatGPT · tool · chatgpt.com · free · recommended by both Bashiri Smith & Melvin Vivas
  OpenAI's AI assistant (web, desktop and mobile apps), used for chat, coding, writing and image generation.
  Also in: Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Dots Demo: A Voice AI Agent Handling Travel Booking and Feedback Triage (Melvin Vivas on X · notes), ChatGPT Can Commit Code Directly to Your GitHub Repo (Melvin Vivas on X · notes), OpenAI Dots: Agents Inside ChatGPT That Debug, Fix, and Open PRs (Melvin Vivas on X · notes) and 23 more

Try this

• Set GPT 5.5 to the high reasoning setting in ChatGPT when brainstorming ideas.