AI Chatbot Review (2025): ChatGPT vs. the Competition

In 2025, generative AI chatbots are more advanced, accessible, and useful than ever. The latest versions of ChatGPT (GPT-4o), Claude 3 Opus, Gemini 1.5, and Meta's LLaMA 3 represent major leaps in natural language reasoning, creativity, and code generation. But how do they compare?
ChatGPT (GPT-4o) — OpenAI
OpenAI’s flagship model GPT-4o brings native multimodal capability — able to process text, image, audio, and video in real-time. It’s fast, responsive, and extremely good at structured tasks, reasoning, and conversation. It's integrated into ChatGPT (Pro users), with access to web browsing, file uploads, memory, and voice chat.
- Strengths: Fast, multi-input, accurate code and writing assistant, built-in tools
- Weaknesses: Memory still evolving, occasional hallucinations in creative mode
Claude 3 Opus — Anthropic
Claude 3 Opus excels in enterprise-level document analysis, ethics, and long-context tasks (up to 200k tokens). It has a calm, balanced personality and tends to be cautious and thoughtful in its outputs. It performs well on reasoning benchmarks and is favored in regulated industries.
- Strengths: Long context handling, safety alignment, structured replies
- Weaknesses: Lacks plugins and real-time browsing, fewer integrations
Gemini 1.5 — Google DeepMind
Gemini 1.5 (formerly Bard) offers excellent integration with Google services and strong performance in programming, math, and multi-turn queries. It’s available for free with access to tools like Docs, Gmail, and Sheets, but the experience is less cohesive than ChatGPT.
- Strengths: Google ecosystem access, real-time search, strong factual accuracy
- Weaknesses: Slower refinement, less intuitive interface
LLaMA 3 — Meta AI
Meta’s open-source LLaMA 3 is designed for research, customization, and deployment. It powers Meta AI in Facebook, Instagram, and WhatsApp. While less capable than GPT-4o in general conversation, it’s extremely powerful for developers and hobbyists.
- Strengths: Open-source, customizable, fast inference
- Weaknesses: Less general-purpose quality, limited built-in features
Benchmark Comparison
Model | Reasoning Score | Token Limit | Multimodal | Speed |
---|---|---|---|---|
ChatGPT (GPT-4o) | 9.5 | 128K | Yes | Fast |
Claude 3 Opus | 9.2 | 200K | No | Medium |
Gemini 1.5 | 8.8 | 100K | Yes | Medium |
LLaMA 3 | 8.0 | 65K | Optional | Fast |
Verdict
Best for All-around Use: ChatGPT GPT-4o
Best for Long Documents: Claude 3 Opus
Best for Google Users: Gemini 1.5
Best for Developers: LLaMA 3
Published: June 2025 · By Computers.uk Editorial Team