GPT-5 已于 2025 年 8 月 7 日正式发布。多个权威来源均证实这一消息，例如维基百科、AP News 及多家科技媒体均指出 GPT-5 的发布日期为 2025 年 8 月 7 日WikipediaAP NewsThe Washington Post。
GPT-5 发布的重点概要
发布时间与可用性
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OpenAI 于 2025 年 8 月 7 日推出 GPT-5，随后迅速向所有 ChatGPT 用户开放，包括免费用户与付费用户（Plus、Pro、Team 等）WikipediaAP NewsBleepingComputer中央社 CNAThe Washington Postelectrify.tw。
模型结构与功能
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GPT-5 是 OpenAI 旗舰级代理型语言模型，整合了推理、多模态识别与任务执行能力，采用“路由器”系统自动选择合适子模型，无需用户自行选择WikipediaOpenAI+2OpenAI+2AP NewsThe VergeWikipediaBotpress。
模型版本与使用等级
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GPT-5 包含多个版本：标准版、Mini、Nano，以及更强大的 GPT-5 Pro 版本OpenAI+1Wikipedia中央社 CNAUnite.AI。
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免费用户可使用标准版，但存在使用上限；Plus 用户享更高使用额度，Pro 用户可享无限制使用并访问 GPT-5 Pro中央社 CNAThe Washington Post+1OpenAIWikipedia。
性能提升与新特点
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GPT-5 在写作、编程（包括前端开发、debug）、健康领域等表现显著提升，幻觉率（hallucination）减少，响应速度更快OpenAIStatesman+1The Washington Post+1中央社 CNAArs Technicaelectrify.twThe Paper。
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新增个性化功能，如用户可选择不同聊天“语气”或界面配色，并改进语音模式响应用户情绪TechRadar+1OpenAI。
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支持整合 Gmail、Google 日历、通讯录等工具（仅限 Pro 用户起陆续开放）TechRadarThe Washington Post。
后续反响与问题
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虽然具备多个提升，但首次发布并不顺利。用户反馈包括语气较冷、基础任务表现不如预期、每周访问限额引发争议等 The Wall Street JournalThe Times of IndiaNew York MagazineThe New YorkerThe Washington PostArs Technica。
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OpenAI 已对部分反馈作出响应，例如恢复旧模型访问选项、改善个性化调整，并承诺推出更多升级The Times of IndiaThe Wall Street JournalWikipediaNew York Magazine。
总而言之，GPT-5 已经正式上线，目标成为更智能、更快速、更实用的 AI 工具，特别是在编码、写作和专业应用领域。但初期体验中仍存在挑战和改进空间。你对 GPT-5 的某项功能感兴趣，或想了解如何在 ChatGPT 中切换模型吗？欢迎继续聊！
GPT-5 Official Release Summary
Release Date & Availability
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OpenAI officially launched GPT-5 on August 7, 2025.
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The model quickly became available to all ChatGPT users, including free, Plus, Pro, and Team plans.
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Free users can access the standard GPT-5 model with usage limits, Plus users get higher limits, and Pro users enjoy unlimited use and access to the most powerful GPT-5 Pro version.
Model Architecture & Capabilities
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GPT-5 is OpenAI’s flagship agent-style large language model, integrating reasoning, multimodal recognition, and task execution.
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It uses a “router” system that automatically selects the best sub-model for each request—no need for users to choose manually.
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CEO Sam Altman described GPT-5 as having “PhD-level expertise” in reasoning and problem-solving.
Versions
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GPT-5 Standard – default version for all users.
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GPT-5 Mini & GPT-5 Nano – smaller, faster variants for lightweight tasks.
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GPT-5 Pro – enhanced version for Pro subscribers with faster responses, deeper reasoning, and higher reliability.
Performance & New Features
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Improved reasoning and reduced hallucinations (wrong or made-up answers).
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Faster response times and stronger performance in writing, coding, debugging, and healthcare topics.
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Personalization features: choose different conversation tones, interface themes, and voice styles.
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Emotion-aware voice mode that can adapt to the user’s mood.
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Integration with Gmail, Google Calendar, and Contacts (rolling out first to Pro users).
Initial Feedback & Issues
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Early user feedback was mixed. Some praised the improved reasoning, but others said:
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Tone felt less warm than previous models.
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Some basic tasks performed worse than expected.
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Weekly usage limits frustrated high-volume users.
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OpenAI responded by:
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Restoring access to older models.
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Adding more tone and style customization.
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Promising further upgrades in the coming months.
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In short: GPT-5 aims to be a smarter, faster, and more practical AI tool for writing, coding, and professional work, but its early rollout faced both praise and criticism. OpenAI is already making adjustments to address user concerns.GPT-4 → GPT-4.5 → GPT-5:
| Feature | GPT-4 (2023) | GPT-4.5 (2024) | GPT-5 (2025) |
|---|---|---|---|
| Release Date | March 14, 2023 | November 2024 | August 7, 2025 |
| Reasoning Ability | Strong, but slower on complex logic | Improved logical consistency & faster reasoning | “PhD-level” reasoning, multi-step problem solving significantly enhanced |
| Speed | Moderate | ~30% faster than GPT-4 | Faster still, with sub-second response for many queries |
| Multimodal Input | Text & images (limited beta) | Text, images, better OCR & diagram understanding | Fully integrated text, image, audio, and early video input capabilities |
| Hallucination Rate | Moderate | Reduced by ~25% | Further reduced; more cautious factual accuracy |
| Customization | Limited “custom instructions” | Persistent custom settings across chats | Multiple tones (formal, casual, friendly), theme colors, voice personality |
| Voice & Emotion | Basic text-to-speech | Faster, more natural voice output | Emotion-aware voice mode that adapts tone to user’s mood |
| Integration | None | Limited plugin support (ChatGPT Plus) | Native integration with Gmail, Google Calendar, Contacts (Pro users first) |
| Model Selection | Manual selection (3.5, 4) | Still manual | Automatic “router” picks best sub-model for task |
| Variants | GPT-4 | GPT-4.5, GPT-4.5-Turbo | GPT-5, GPT-5 Mini, GPT-5 Nano, GPT-5 Pro |
| Access for Free Users | GPT-3.5 only | GPT-3.5, occasional GPT-4 access | GPT-5 Standard with usage cap |
| Best For | General tasks, complex reasoning | Faster everyday use, better accuracy | Professional-grade tasks, complex workflows, seamless multimodal projects |
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