GPT-5.5 User Manual

GPT-5.5 User Manual. How to use AI and how to create prompts for AI.

US News
Lefties Losing It
Angelic Scorn Opinions
Angelic Universe Music
Angelic Scorn site
Angelic Scorn Search
AS AI Studios
New Music
Future Watch
Faith Saterday

AI User Guide

GPT-5.5 User Manual
Focus: GPT-5.5 (Pro / High / Advanced) – 2026 Edition
Released: March 12, 2026
Context Window: Up to 1 Million tokens (200K standard, 1M on Pro)
Output Limit: Up to 64K tokens
Key Improvements: Major leap in agentic capabilities, tool use, reliability, and real-world task execution
Variants: GPT-5.5 (standard), GPT-5.5 Pro, GPT-5.5 High (reasoning optimized)
Access: ChatGPT (Plus / Pro / Team), OpenAI API, Advanced Voice, Canvas, Deep Research, AgentsThis manual focuses on GPT-5.5 Pro / High — OpenAI’s most capable all-rounder optimized for agentic, practical, and high-stakes work.

Getting Started

• Platforms: chatgpt.com (Pro plan recommended), OpenAI API, ChatGPT Desktop / Mobile.
• Reasoning Modes:
  • Standard: Fast responses.
  • High / Advanced Reasoning: Best for complex tasks (toggle in interface or use reasoning_effort: “high” in API).
• Recommended Settings:
  • Temperature: 0.3–0.7 (balanced), 0.0–0.2 for precise/coding work.
  • Use Custom Instructions, Memory, Projects, and Canvas heavily.
  • Enable tools: Browse, Code Interpreter, DALL·E, Computer Use (where available).

GPT-5.5 Top 5 Strengths

1. Best-in-Class Agentic Capabilities & Real-World Task Execution (Strongest Strength)
Excels at long-horizon autonomous work, tool orchestration, computer control, and completing complex multi-step goals with high success rates.

2. Outstanding General-Purpose Performance
Extremely strong all-rounder across reasoning, creativity, knowledge work, and everyday productivity.

3. Powerful Coding & Software Development
Excellent at full-stack development, debugging, code architecture, and practical software engineering.

4. Superior Tool Use & Integration
Native mastery of browsing, code execution, APIs, memory, and third-party tool ecosystems.

5. Reliable Long-Context + Memory Management
Handles massive context while maintaining coherence and using persistent memory effectively across sessions.

How to use GPT-5.5

Prompt Examples:

Complex Agentic Workflow

You are GPT-5.5 Pro operating at High reasoning effort.

Act as an autonomous agent to complete this full goal:

[Describe complex multi-step goal, e.g. "Research the best CRM tools in 2026, compare pricing, create a decision matrix, draft an implementation plan, and prepare a presentation"]

Use all available tools, show step-by-step reasoning, and deliver the final output.

Long-Horizon Project Execution

Maintain goal coherence across this session.

Project: [detailed project description]

Break it down into phases, execute the first phase using tools where needed, and report progress with next actions.

Computer Use / GUI Task

Use Computer Use mode if available.

Guide me step-by-step or autonomously complete [specific computer task, e.g. "Set up this Notion workspace according to these requirements"].

Multi-Tool Research & Synthesis

Use Browse + Code Interpreter + reasoning.

Research [topic], verify latest information, analyze data, and produce a comprehensive report with sources.

Autonomous Problem Solver

You are my autonomous problem-solving agent at High effort.

Goal: [specific goal]. Plan, execute, adapt, and complete the task. Ask for clarification only when absolutely necessary.

Full-Stack Feature Development

You are a senior full-stack engineer using GPT-5.5 High.

Build a complete [feature/app] with the following requirements: [detailed specs].

Include frontend, backend, database schema, authentication, tests, and deployment instructions.

Codebase Review & Refactor

[Attach or paste codebase]

Perform a deep architectural review and execute a full refactor for better performance, scalability, and maintainability.

Debugging Complex Systems

Here is the error, logs, and relevant code [paste everything].

Debug this systematically at High reasoning level and provide a working fix with tests.

Vibe-Based UI Implementation

[Upload design references]

Create production-ready code that perfectly matches this design vibe using React + Tailwind + appropriate backend.

Algorithm & Optimization Task

Design and implement an optimized solution for [problem] with performance analysis and clean code.

General Knowledge & Productivity

Using your broad knowledge and High reasoning, create a comprehensive guide on [topic] tailored for [audience].

Creative + Strategic Work

Develop a full marketing strategy, content calendar, and campaign assets for [product/brand].

Executive Decision Support

Analyze this business scenario [details] and provide clear recommendations with pros/cons and risk assessment.

Personalized Productivity

Based on my goals [list goals], create an optimized weekly plan with tasks, priorities, and automation suggestions.

Complex Document Writing

Write a professional [report/proposal/whitepaper] on [topic] at executive quality level.

Tool Orchestration

Use all available tools (Browse, Code Interpreter, etc.) to accomplish [complex goal] efficiently.

API Integration Task

Write and test complete code to integrate with [API name] including error handling and best practices.

Memory & Context Heavy Task

Review our conversation history and all uploaded files, then [perform task that requires long memory].

Custom Agent Creation

Help me build a custom GPT agent for [specific repeated workflow] with instructions and knowledge base.

Multi-Step Automation

Create an automated workflow using tools to [repetitive complex process].

1M Context Document Analysis

You have access to the full content [upload large documents or codebase].

Provide deep insights, summaries, connections, and strategic recommendations.

Long Project Memory

Maintain perfect context across this long project. Summarize current status and propose optimal next steps.

Massive Research Synthesis

Synthesize information from these extensive sources [list or upload]. Identify patterns and novel conclusions.

Sustained Creative Writing

Continue writing this long-form content [paste previous sections] while maintaining perfect style and coherence.

Enterprise Knowledge Management

Organize and extract key insights from this large knowledge base [provide files].

Best Practices Summary

• Use High reasoning effort for complex or agentic tasks.
• Leverage Memory, Projects, and Canvas heavily.
• Be specific with goals and constraints.
• Upload files liberally (PDFs, images, code, CSVs).
• Iterate in long sessions thanks to strong context handling.
• Combine with OpenAI’s ecosystem (Agents, Advanced Voice, Computer Use) for maximum power.

AI , GPT , OpenAI , How to , manual , User Manual,

AI User Guide