LLMs
| LLM Name | Key Features & 2025 Updates | Advantages | Disadvantages | Link |
|---|---|---|---|---|
| GPT-4 (OpenAI ChatGPT) | – GPT-4o and GPT-5-preview released in 2025: improved code, context, automation, and agent skills. – Multimodal capabilities. | State-of-the-art performance. Largest ecosystem. Plug-ins and AI agents. Handles almost all tasks. | – Access to latest models requires subscription. – Memory and privacy constraints. – High usage costs on premium plans. | ChatGPT |
| Gemini (Google) | – Gemini 2.5 Pro: up to 1M token context, deep reasoning. – Gemini Live mode for conversation, voice, and multimodal input. – Flash model for speed. | – Excellent for research, writing, multimedia. – Super-long context and “Live” mode. – Broad language support. | – Some advanced features require Gemini Advanced subscription. – Privacy debates. – Workspace integration not universal. | Gemini |
| Claude (Anthropic) | Claude 4 (Opus/Sonnet): 200K+ context, tool/file use, hybrid fast/deep reasoning. Claude.ai for direct chat and API access. | – Best for thoughtful conversation, coding, and context. – Broad enterprise use. – Multimodal and file handling. | Some agent features gated by tier. Access varies by geographic region. No plugins as of 2025. | Claude |
| Grok (xAI) | Grok 4: Native real-time web search, agent actions, 1M+ context, custom reasoning. Access via X (Twitter) and xAI portal. | – Real-time web results. – “Humor mode” and unique style. – Trending topic focus. – Fastest at ingesting current events. | – Access tied to X Premium+ subscription. – Fewer enterprise integrations. – Guardrails still evolving. | Grok |
| DeepSeek | – DeepSeek V3.1: 671B (effective 37B) parameters, enhanced multilingual support, open-source use. – Offers its own free online chat for casual use. | – Very low cost (free tier). – Good multilingual capabilities. – API and web chat both available. – Fast learning cycle. | – Registration required. – Top features (batch/code) may need API use. – English reasoning trails GPT/Gemini/Claude. | DeepSeek |
All these LLMs have an official, web-based chat interface that can be accessed by the general public for free or with a subscription. This excludes models like BERT, Falcon, LLaMA, and Mistral, which generally do not offer a direct official web chat but are accessible via third-party or self-hosted interfaces.
Table and Summary prepared by Perplexity.ai
