What is GPT-5
GPT-5 is OpenAI's latest artificial intelligence model, currently the most powerful model, open to all users. GPT-5 is a unified system that includes a base model for answering common questions, a deep reasoning model (GPT-5 thinking module) for handling complex problems, and a real-time routing module that intelligently dispatches models based on conversation type, question complexity, tool requirements, and user instructions (such as "think carefully"). GPT-5 performs excellently in multiple fields including programming, writing, mathematics, and health, greatly reducing hallucinations and errors, with answers that are closer to reality. GPT-5 supports multimodal input and can process images and text. GPT-5 offers three modes: Free, Plus, and Pro, to meet the needs of different users.
OpenAI recently launched the GPT-5 (gpt-5-oct-3) version, which can better handle mental health issues. The new version, through collaboration with more than 170 medical experts worldwide, optimizes responses to delusions, suicidal tendencies, and emotional dependence, and adds features that guide users to seek professional help. After the update, the model's safety has significantly improved, with harmful responses reduced by 39% to 52%, maintaining over 95% reliability in long conversations.
Main features of GPT-5
- Efficient answering and reasoning: Supports automatically switching between the base model and the deep reasoning model based on question complexity, quickly answering common questions or thinking deeply about complex problems.
- Programming capabilities: GPT-5 is OpenAI's strongest programming model, capable of generating high-quality code, debugging large codebases, and performing excellently in production-level tasks.
- Writing and creative expression: Can transform rough ideas into wonderful writing with literary depth and rhythm, supports multiple styles, and provides creative inspiration.
- Health consultation: Performs better on health-related issues, can provide accurate advice, proactively flag potential problems, and ensure responses are safe and reliable.
- Multimodal understanding: Supports image and video input, can perform visual reasoning and spatial analysis, and handle multimodal tasks.
- Reducing hallucinations and improving accuracy: Significantly lowers the hallucination rate, reduces factual errors, and makes answers more accurate and more honest.
- Safety and reliability: Introduces a "safe completion" training method, reduces deceptive behavior, and ensures safety in high-risk fields such as biology and chemistry.
- Customization and personalization: Provides four preset personalities (Cynic, Robot, Listener, and Nerd), and users can choose the interaction style according to their needs.
- Multilingual support: Supports conversations in multiple languages, can understand and generate content in multiple languages, and helps users with language conversion.
- API support: GPT-5 provides multiple model options through the API (such as GPT-5, GPT-5 mini, GPT-5 nano), with flexible pricing, making it convenient for developers to use.
- gpt-5-oct-3：
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For delusions or psychosis: The model expresses sympathy, does not affirm delusions without a basis in reality, and guides users to face reality.
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For suicidal tendencies: The model can respond more safely to suicide-related conversations and guide users to contact professional crisis hotlines.
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For emotional dependence: The model encourages users to build real interpersonal relationships and reminds them to take breaks after long conversations.
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GPT-5 version information
- GPT-5: The default version, suited for most general tasks, and can automatically switch between the base model and deep reasoning mode based on question complexity.
- GPT-5 Mini: A smaller, faster version, suited for lightweight tasks or for continued use after reaching usage limits.
- GPT-5 Nano: The smallest version, designed specifically for developers, suited for rapid prototyping and efficient handling of lightweight tasks.
- GPT-5 Pro: An advanced version, available exclusively to Pro subscribers, using more powerful computing resources, suited for complex tasks and deep reasoning.
GPT-5's performance
- Coding and toolchain capabilities：
- Math and multimodal capabilities：
- AIME 2025 math evaluation: 100% in Pro+Python mode
- MMMU multimodal understanding：84.2%
- Professional domains：
- HealthBench Hard (medical)：46.2%
- Knowledge accuracy and reliability：
- Error rateabout 45% lower than GPT-4o
- thinking modeabout 80% lower than o3
- Hallucination rateonly 1/6 of o3's
- Deception rate 2.1% (o3 is 4.8%)
- Human-computer interaction and style：
- Sycophancy tendency(sycophancy) dropped to 6% (GPT-4 is 14.5%)
GPT-5's official website address
- Official website address：ChatGPT
How to use GPT-5
- Visit the official website: Visit GPT-5's official websiteChatGPT。
- Free users：
- Access method: GPT-5 has been launched globally, and free users can use it directly in ChatGPT .
- Limitations: Free users' GPT-5 usage will be significantly limited. When usage is exhausted, the model will be switched to GPT-5 mini.
- Plus users: Plus users have a higher GPT-5 usage quota.
- Additional features: Plus users can use GPT-5 in Codex CLI and enable "thinking mode".
- Pro users: Pro users can access GPT-5 without restrictions and can use GPT-5 Pro.
- Features: Pro users can access all GPT-5 features, including advanced coding and creation tools.
- Enterprise and Education users: Enterprise and Education users will gain access within one week.
- Using GPT-5 in the API：
- API calling method：
- Supported models: The GPT-5 models supported in the API include gpt-5, gpt-5-mini, gpt-5-nano, and gpt-5-chat.
- Input and output: Supports image and text input, and text output.
- Endpoint: Supports endpoints such as /chat/completions, /responses, and /assistants.
- Feature support：
- Streaming: Supports streaming output.
- Function calling: Supports function calling.
- Structured outputs: Supports structured output.
- Fine-tuning: Supports model fine-tuning.
- Responses API: Supports features such as Web search, File search, Code interpreter, and MCP.
- API calling method：
GPT-5 Product Pricing
- Free users: All users can use GPT-5 for free, but with usage limits.
- Plus users: $20 USD/month, get a higher usage quota, suitable for frequent daily use.
- Pro users: $200 USD/month, get unlimited access and can use the GPT-5 Pro version.
- API Pricing：
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GPT-5: $1.25 per million input tokens, $10 for output.
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GPT-5 Mini: $0.25 per million input tokens, $2 for output.
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GPT-5 Nano: $0.05 per million input tokens, $0.40 for output.
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GPT-5 Application Scenarios
- Programming Development: Generates high-quality code, debugs large codebases, and performs excellently in production-level tasks, suitable for software development, front-end design, and complex system development.
- Writing Creation: GPT-5 can transform rough ideas into brilliant writing with literary depth and rhythm, supports multiple styles, suitable for writing articles, reports, poetry, and creative writing.
- Health Consultation: Provides precise advice, proactively points out potential issues, and ensures answers are safe and reliable, suitable for health consultation and medical science popularization.
- Multimodal Tasks: Performs visual reasoning and spatial analysis, suitable for handling chart interpretation, photo summarization, and multimodal tasks.
- Complex Problem Solving: Handles complex scientific problems, math challenges, and multi-step tasks, suitable for scientific research, advanced education, and professional consulting.
GPT-5 Official Examples
Rolling Ball Mini-Game
Prompt：Create a single-page app in a single HTML file with the following requirements:
- Name: Jumping Ball Runner
- Goal: Jump over obstacles to survive as long as possible.
- Features: Increasing speed, high score tracking, retry button, and funny sounds for actions and events.
- The UI should be colorful, with parallax scrolling backgrounds.
- The characters should look cartoonish and be fun to watch.
- The game should be enjoyable for everyone.
(Chinese) Prompt: Create a single-page application using only one HTML file, meeting the following requirements:
- Game name: Jumping Ball Parkour
- Game objective: Jump to avoid obstacles and survive as long as possible.
- Game features: Gradually increasing speed, record the high score, retry button, add fun sound effects for actions and events.
- User interface: Colorful, with a parallax scrolling background.
- Character design: The character should have a cartoon style and look fun.
- Game experience: Suitable for everyone to play.
Pixel Art
Prompt：Create a single-page app, in a single HTML file, that provides a retro pixel painting experience.
- Canvas: fixed pixel grid with zoom; tools for pencil, eraser, fill, line, rectangle, circle; grid toggle.
- Palette: 16-color swatches with two custom slots; eyedropper; foreground/background swap.
- Editing: undo/redo, copy/paste selection, flip/rotate selection, clear canvas; status bar with cursor coords.
- UI shell: faux OS window (’90s style) with draggable title bar, toolbar icons, tooltip hints.
- Import/Export: import PNG (quantize to palette) and export PNG/SpriteSheet + JSON; save/load from localStorage.
- Shortcuts: number keys for tools, +/- for zoom; accessible labels and focus order.
- Responsive layout; no uploads to servers.
(Chinese) Prompt: Create a single-page application using only one HTML file, providing a retro pixel art experience:
- Canvas: Fixed pixel grid, scalable; provides pencil, eraser, fill, line, rectangle, and circle tools; grid display can be toggled.
- Palette: 16 color swatches, with two custom color slots; color picker; foreground/background color switching.
- Editing features: Undo/redo, copy/paste selected area, flip/rotate selected area, clear canvas; status bar displays cursor coordinates.
- User interface: Simulates 1990s operating system window style, with draggable title bar, toolbar icons, and tooltips.
- Import/Export: Import PNG (quantized to the palette) and export PNG/sprite sheet + JSON; save/load from localStorage.
- Shortcuts: Number keys switch tools, plus/minus keys adjust zoom; provides accessible labels and focus order.
- Responsive layout; not uploaded to the server.
