ChatGPT

Name: ChatGPT
Author: OpenAI

OpenAI, US

⭐⭐⭐⭐⭐ 4.9/5

Editorial estimate compiled from public vendor data — not a user-review average. How we rate

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📊 Quick Facts

Pricing Modelfreemium

Categorychat

Users1B+ weekly (OpenAI, Sep 2026)

Founded2015

HQSan Francisco, CA, USA

Employees1,500+

Monthly Visits5.51B

LanguagesEnglish, Spanish, French, German, Japanese, Chinese, Korean, Arabic, Portuguese, Italian, 50+ languages

PlatformWeb, iOS, Android, macOS, Windows, API

DeploymentCloud

Data Snapshot2026-09-24

📝 About ChatGPT

OpenAI's flagship AI chatbot powered by the GPT-5.6 family — Sol for eligible paid plans and Luna as the default free model — supporting advanced reasoning, code generation, and image generation.

💰 Pricing

Free: GPT-5.6 Luna; Go: $8/mo; Plus: $20/mo; Pro: from $100/mo (5x) or $200/mo (20x)

✨ Key Features

GPT-5.5 with integrated o-series reasoning (no mode switching)1M token context window via API (400K in Codex)GPT-5.5-Instant: 52.5% hallucination reduction in professional domainsNative GPT-4o image generation (replaced DALL-E 3)Codex: autonomous coding agent with debugging and refactoringOperator: computer-use agent for browser tasksDeep Research: multi-source synthesis with citationsSora: text-to-video generation (up to 60 sec)Advanced Voice Mode with natural conversationCustom GPTs and GPT StoreGoogle Drive, Microsoft 365, and Gmail integration

🏷️ Tags

chatllmcodingwritingresearch

⚖️ Pros & Cons

✓ Pros

Industry-leading AI technology with proven track record
Comprehensive feature set for diverse use cases
Strong integration ecosystem and developer community
Excellent performance and reliability at scale

✗ Cons

Premium features require paid subscription
Learning curve for advanced functionality
Limited offline capabilities in cloud-dependent workflows
May require technical expertise for optimal configuration

🎯 Use Cases

• chat

• coding

• writing

• research

• productivity

✔ Best For

Text GenerationCreative WritingCode GenerationData AnalysisTranslationResearch

🧠 Models

GPT-5.5
GPT-5.5-Instant
GPT-5.5-Cyber
GPT-5.6 Luna
GPT-5.6 Sol

🔗 Integrations

SlackDiscordMicrosoft TeamsZapierGoogle DriveNotion

📈 Benchmarks

MMLU: 86.4%

HumanEval: 90.2%

GSM8K: 92.0%

MATH: 76.6%

🔀 Alternatives

Claude Google Gemini DeepSeek

⚖️ Comparisons

ChatGPT vs Claude ChatGPT vs Gemini ChatGPT vs DeepSeek

📅 History

Nov 2022 Initial Release - ChatGPT launches to the public, revolutionizing conversational AI

Mar 2023 GPT-4 Integration - GPT-4, plugins, and web browsing introduced

May 2024 GPT-4o Launch - GPT-4o multimodal model and Advanced Voice Mode released

Sep 2024 o1 Reasoning Models - o1 and o1-mini reasoning models for complex problem solving

Dec 2024 o3 & o4-mini - Next-gen reasoning models o3 and o4-mini released via API

Feb 2025 GPT-4.1 Family - GPT-4.1, GPT-4.1 mini, GPT-4.1 nano with 1M context

May 2025 GPT-5 Launch - GPT-5 model family with Instant and Thinking modes

Feb 2026 GPT-4o Deprecation in ChatGPT - GPT-4o and GPT-4.1 deprecated in ChatGPT (API retains access); GPT-5.5 becomes default

May 2026 GPT-5.5 Pro & Deep Research GA - GPT-5.5 Pro, Deep Research agent generally available

Aug 2026 GPT-5.6 family - GPT-5.6 Luna becomes the default model for Free and Go users; GPT-5.6 Sol rolls out to eligible paid plans

Sep 2026 Over 1 billion users - OpenAI reports serving more than 1 billion ChatGPT users (official announcement, September 11, 2026)

🇨🇳 China Insight

ChatGPT is not available in mainland China. Users typically access it via VPN. Popular local alternatives include DeepSeek, Qwen, and Kimi.

🔒 Data & Compliance

Data PolicyData used for model improvement unless opted out. Enterprise API data not used for training.

ComplianceSOC 2 Type II, GDPR, CCPA

Content ModerationAI-powered content filtering with human review.

Data Retention30 days for API

🌐 Social & Community

X/Twitter YouTube

💬 Reviews

G2: 4.7/5 (1,500+ reviews),Trustpilot: 4.3/5

ℹ️ How this page is built

This page is compiled by an automated pipeline from publicly available vendor information. It is not a hands-on review, and no editor reviews it before publication.

Ratings are editorial estimates derived from public vendor data (features, pricing, ecosystem coverage). They are not user-review averages, and we do not publish user ratings.

Data Snapshot shows when this entry was last refreshed from our directory dataset. Pricing and model line-ups change frequently, so confirm critical pricing on the vendor’s own site.

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