ChatGPT-4 vs ChatGPT-5 – Comparison

ChatGPT-4 vs ChatGPT-5 – A Complete Comparison Artificial Intelligence has evolved rapidly in recent years, and OpenAI’s ChatGPT models are at the forefront of this transformation. With the release of ChatGPT-5, users are curious about how it compares to its predecessor, ChatGPT-4. In this blog, we’ll break down the key differences in terms of features, speed, accuracy, reasoning, and code generation capabilities — along with a side-by-side table comparison so you can see the upgrades clearly. 1. Overview of ChatGPT-4 Released in March 2023, ChatGPT-4 was a significant leap from ChatGPT-3.5. It introduced: Better understanding of complex prompts. Improved reasoning and creativity. Support for multimodal input (text and images). Higher accuracy in long-form content generation. Approximate context length: 8K to 32K tokens. 2. Overview of ChatGPT-5 ChatGPT-5, introduced in mid-2025, builds upon GPT-4’s foundation with: Ultra-long memory (up to 200K tokens in some cases). More human-like reasoning and decision-making. Real-time web integration and live data fetching. Improved multi-turn conversation memory. Enhanced code generation and debugging. More stable performance in multilingual contexts.

Aspect	ChatGPT-4	ChatGPT-5
Release Context	Popular and powerful AI with strong multimodal support.	Latest generation AI, most powerful and capable from OpenAI as of 2025.
Multimodal Abilities	Supports text and images; voice available in some versions.	Fully multimodal: text, images, voice, and video input simultaneously, plus combined modal queries.
Context Window Size	Up to 128,000 tokens (GPT-4o version).	Massive increase up to 1 million tokens for very long documents/conversations.
Reasoning & Thought Process	Strong reasoning and nuanced responses.	Enhanced reasoning with automatic "thinking mode", clearer logic explanation.
Hallucinations & Safety	Reduced hallucinations, but some inaccuracies remain.	80%+ hallucination reduction, safe completions, transparent limitation disclosure.
Coding & Development Support	Robust code generation and debugging assistance.	Improved accuracy, full-stack UI generation, “vibe coding” for natural language app dev.
Integrations & Tool Use	Browsing and some external API tools in Pro version.	Deeper integration with Gmail, Calendar, and productivity tools for automated referencing.
Personalization & Memory	Basic personalization and limited session memory.	Advanced memory remembering preferences and chat personalities; customizable UI themes.
Speed & Accessibility	Fast, but complex queries can be slower; Pro faster.	Faster overall; available to all tiers; Mini and Nano variants for speed/cost options.
User Experience	Conversational tone with some emojis.	More emotionally aware, subtle tone, supports voice conversations and natural interaction.
Primary Use Cases	Education, content creation, coding, and multimodal input tasks.	Expanded to healthcare, professional, academic, creative fields with expert-level reasoning and safer outputs.