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GPT-5 vs GPT-4
According to OpenAI, this new generation model will be the most powerful and capable artificial intelligence model to ever come out of the company and it is delivering high end capabilities straight into the hands of everyone, not just paying customers.
Smarter Thinking, Safer Outputs
The capacity of GPT-5 to "think" before reacting is one of its greatest advantages over GPT-4. According to OpenAI, GPT-5 uses internal reasoning chains to provide more precise and context-aware responses.
Additionally, it creates less false information, which is a huge relief for anyone sick of AI hallucinations. In addition to pointing out its "safe completions" feature, which provides high-level, secure answers without outright rejecting challenging queries, OpenAI states that "GPT-5 mini is priced at $0.25/1M input tokens and $2/1M output tokens, and GPT-5 nano is priced at $0.05/1M input tokens and $0.40/1M output tokens."
GPT-5 vs GPT-4: Feature-by-Feature Comparison
| Feature | GPT-4 | GPT-5 |
| Reasoning Capability | Limited reasoning, more prone to errors in complex logic | Advanced reasoning with internal “chain-of-thought” for accurate, context-aware responses |
| Hallucinations (False Info) | Higher hallucination rate, sometimes speculates | Lower hallucination rate, avoids speculation, explains limitations clearly |
| Safety Features | Standard safety filters, may refuse risky queries | Introduces “safe completions” – gives secure high-level answers without outright refusal |
| Speed | Slower in generating complex outputs | Significantly faster across domains including coding, education, and healthcare |
| Creativity & App Development | Can code and create, but slower and less versatile | Can build fully functional apps (e.g., French-learning app) within seconds |
| Tool Integration | Limited – separate access for web search, images, voice | All major OpenAI tools (web, image generation, voice, Canvas) in one interface |
| Microsoft Integration | Used in some MS products | Deployed across Microsoft 365 Copilot & Azure AI Foundry |
| Model Variants | Not widely tiered for cost/performance | Three variants – GPT-5, GPT-5-mini, GPT-5-nano (performance & budget options) |
| Access for Free Users | Access only to older models or GPT-4 in Plus | Free-tier gets GPT-5 until usage cap, then GPT-5-mini |
| Pricing (API) | Higher token costs compared to mini/nano | GPT-5: $1.25/1M input & $10/1M output tokens; GPT-5 mini: $0.25/$2; GPT-5 nano: $0.05/$0.40 |
| Use Cases | Strong for text, general Q&A | Stronger in text, coding, education, healthcare, creative work |
| Overall Advantage | Reliable but slower, more restricted | Faster, safer, smarter, and more accessible to all tiers |
Cross-Domain Performance
GPT-5 is faster in addition to being smarter. GPT-5's speed and inventiveness surpass GPT-4, whether it's creating themed quizzes on the spot or coding a fully functional French-learning app in a matter of seconds.
This performance improvement is having a significant impact on the creative, medical, and educational sectors, where precise, safe solutions and quick prototyping are essential.
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One location, all tools
In contrast to GPT-4, GPT-5 unifies all of the main OpenAI tools into a single interface, including voice, image generation, web search, and creative workspaces like Canvas. Furthermore, GPT-5 is already being used by Azure AI Foundry and Microsoft 365 Copilot.
Through the API, developers can choose between three flavours: GPT-5, GPT-5-mini, and GPT-5-nano. Each is designed to accommodate varying workloads and financial constraints.
Unexpected Pricing
GPT-5 costs $10 per million output tokens and $1.25 per million input tokens for API users. The GPT-5 mini and GPT-5 nano further reduce those expenses, making them more affordable than some Google Gemini substitutes.
What's the best? GPT-5 is available to free-tier users until they reach usage caps, at which point they will continue to receive GPT-5 mini. Pro-tier users have unrestricted access, while Plus-tier users have higher limits.
Why This Matters
GPT-5 is a step towards making advanced AI the new standard, not just an AI improvement. Better thinking, safer responses, and wider access are all being combined by OpenAI to subtly pave the way for a time when having strong AI tools is standard rather than optional.
You're losing out on a significant advancement if you're still using GPT-4, and advancements in the field of artificial intelligence happen quickly.