ChatGPT Review (2025)
By AI Tools Hub Editorial Team · ·
In This Review
What is ChatGPT?
ChatGPT is an AI chatbot and assistant developed by OpenAI, first released in November 2022. It is built on OpenAI's GPT (Generative Pre-trained Transformer) family of large language models. The current flagship version, GPT-4o, is a multimodal model capable of processing and generating text, images, audio, and code within a single conversation.
As of 2025, ChatGPT has over 200 million weekly active users, making it the most widely adopted AI assistant in the world. It is available as a web application, mobile app (iOS and Android), and via API for developers.
Key Features
🧠 GPT-4o Multimodal
Process text, images, PDFs, and audio in the same conversation. Ask questions about uploaded images or documents.
🔌 GPT Store & Plugins
Access thousands of custom GPTs built for specific tasks — from legal research to recipe generation.
🌐 Web Browsing
Search the web in real-time for up-to-date information. Available on Plus and above.
💻 Code Interpreter
Run Python code, analyse data, create charts, and process files directly in the chat.
🎙️ Voice Mode
Advanced voice conversations with natural turn-taking. Available on mobile and desktop.
🤖 Custom GPTs
Create personalised AI assistants with custom instructions, knowledge, and capabilities.
Pricing & Plans
| Plan | Price | Model | Key Features | Best For |
|---|---|---|---|---|
| Free | $0 | GPT-4o mini | Basic chat, limited GPT-4o access | Casual users |
| Plus | $20/mo | GPT-4o | Full GPT-4o, DALL-E, web browsing, plugins | Individuals & professionals |
| Team | $30/user/mo | GPT-4o | Higher limits, shared workspace, admin controls | Small teams |
| Enterprise | Custom | GPT-4o | SSO, unlimited usage, data privacy, priority support | Large organisations |
Pros & Cons
✓ Pros
- Genuinely useful free tier
- Most versatile AI assistant available
- Excellent multimodal capabilities
- Huge ecosystem of plugins and GPTs
- Consistent updates and improvements
- Available on all platforms
- Strong coding capabilities
✗ Cons
- Can hallucinate facts confidently
- Knowledge cutoff (not always current)
- Usage limits on free tier
- Not the best for very long documents
- Privacy concerns for sensitive data
- Can be verbose without prompting
Performance Tests
We tested ChatGPT (GPT-4o) across 20 real-world tasks over a two-week period. Here are the highlights:
Where It Excels
- ✓ Explaining complex topics clearly
- ✓ Writing and editing prose
- ✓ Python and JavaScript coding
- ✓ Summarising long documents
- ✓ Brainstorming and ideation
Where It Struggles
- ⚠ Very recent news and events
- ⚠ Precise numerical calculations
- ⚠ Niche domain expertise
- ⚠ Maintaining very long context
- ⚠ Consistent formatting in long docs
Alternatives to ChatGPT
Final Verdict
ChatGPT earns its position as the benchmark AI assistant. The free tier is genuinely useful, the Plus plan at $20/month is excellent value, and the breadth of capabilities — from writing to coding to image generation to voice — is unmatched in a single product.
The main caveat: for specific use cases like long-document analysis (Claude), SEO content (Surfer SEO), or coding (Cursor), specialist tools will outperform it. But as a general-purpose AI assistant, nothing beats ChatGPT's combination of capability, ease of use, and ecosystem.
Frequently Asked Questions
Yes — ChatGPT has a free tier that provides access to GPT-4o mini with usage limits. The free plan is sufficient for casual use. ChatGPT Plus ($20/month) unlocks the full GPT-4o model, higher usage limits, DALL-E image generation, and web browsing.
GPT-4o ("o" for omni) is OpenAI's current flagship model, released in 2024. It is faster and more capable than the original GPT-4, and natively handles text, images, and audio in a single model rather than requiring separate models for each modality. GPT-4o is available on the free tier (with limits) and without limits on Plus.
Standard ChatGPT accounts may use your conversations to train future models. You can opt out in Settings → Data Controls. For sensitive business data, use ChatGPT Team or Enterprise plans, which include data privacy guarantees and do not use your data for training. Avoid sharing passwords, financial data, or personal health information in any AI chat tool.