OpenAI has officially launched its latest flagship AI model, GPT-5, offering it free for all users. The upgraded ChatGPT version comes with significant improvements in reasoning, speed, and multimodal capabilities. According to the company, GPT-5 is designed to deliver more accurate, safe, and versatile responses than its predecessors.

What is GPT-5?

GPT-5 is OpenAI’s most advanced AI model, built as a unified system. It combines enhanced reasoning with multimodal abilities, handling both text and vision tasks. The model is available on both ChatGPT and the OpenAI API. Compared to earlier versions, it provides faster responses, higher accuracy, and better context management.

Who Can Access GPT-5?

OpenAI has rolled out GPT-5 globally for both free and paid ChatGPT users.
Free users can access GPT-5 with limited usage, while Plus, Pro, Enterprise, Team, and Edu plans get higher usage limits and access to advanced reasoning profiles.

On the API side, developers can choose between GPT-5, GPT-5 mini, and GPT-5 nano to match performance needs and budgets.

Multiple Modes in One System

GPT-5 operates as a unified system with three modes.
One mode delivers quick, general answers.
Another is a deep reasoning or “thinking” model for complex problems.
The third is a real-time router that automatically selects the best mode for each task.

In the ChatGPT interface, a Parallel Compute or Thinking-Pro mode allows the model to compute separately for challenging queries, delivering improved answers.

Key New Capabilities of GPT-5

1. Better Reasoning and Lower Hallucinations

GPT-5 reduces hallucinations significantly compared to GPT-4o.
Internal tests show 45% fewer factual errors.
The reasoning mode offers even higher accuracy.

2. Larger Context Handling

The model can process much larger contexts.
It can read long books, massive codebases, or multiple documents at once.

3. Advanced Coding and “Software on Demand”

GPT-5 excels in code generation, debugging, and navigating large codebases.
It can handle complex, multi-step developer workflows effortlessly.

4. Multimodal Functionality

It works with both text and vision inputs.
The model can browse, run code, and interact with external APIs in an agent-style manner.
ChatGPT now includes Gmail and Calendar integrations along with preset personalities like professional and supportive.

5. Faster and More Accurate

Across writing, math, health, visual perception, and coding, GPT-5 outperforms older models.

Focus on Safer AI Responses

OpenAI has introduced a safe-completions training method in GPT-5.
This ensures the model aims to give helpful and safe answers rather than simply refusing queries.

The process includes:

• Expert red-teaming

• External testing

• Chain-of-thought monitoring

These steps reduce risks like deception, jailbreaks, and malicious use.

How to Start Using GPT-5

To access GPT-5, download the ChatGPT app or visit the ChatGPT website.
Once logged in, users automatically gain access to the new model.

Free users will face usage and feature limits, while paid users enjoy extended capabilities and pro modes.

Despite the upgrades, OpenAI advises users to verify information and avoid over-reliance on AI for critical decisions.