News

GPT-5 is Coming with Unified AI System and Deeper Reasoning

• By David Ramel
• 08/07/2025

OpenAI has begun the gradual rollout of GPT-5, the company's new flagship large language model, to ChatGPT Plus, Pro, and Team subscribers worldwide. Enterprise and Edu plan availability is planned for the near future, with GPT-5 becoming the default model for all logged-in ChatGPT users across web, mobile, and desktop.

The company describes GPT-5 as a unified, auto-switching system that integrates the capabilities of prior models into a smart, fast model. GPT-5 introduces a deeper reasoning mode called GPT-5 Thinking, which engages automatically for more complex requests. As OpenAI explains, GPT-5 "can 'think' more deeply when a problem benefits from careful analysis, especially for complex work like coding, science questions, information synthesis, and data or financial analysis." With GPT-5, users do not need to choose the "right" model for their tasks, as ChatGPT "automatically adapts to the task, delivering faster, higher-quality, and more reliable results." The model uses a real-time router that decides which mode to use based on conversation type, complexity, tool needs, and user intent.

Key Features

• Unified System: GPT-5 automatically decides whether to use its Chat or Thinking mode for a given request. Users on paid plans can also manually select GPT-5 or GPT-5 Thinking.
• Professional Output: The model generates professional, long-form documents and reports that are structured and polished.
• Data Synthesis: GPT-5 can integrate insights from multiple uploaded reports, datasets, or connected apps, such as Google Drive, to provide evidence-based recommendations.
• Tool Compatibility: The model works with all existing ChatGPT tools without limitation, including web search, data analysis, image analysis, file analysis, image generation, Memory, and Custom Instructions.

Usage Limits by Tier

Automatic switching from GPT-5 to GPT-5 Thinking does not count toward the weekly limit for Plus or Team users.

Example Use Cases

• Engineering: Multi-repo architecture reviews, analyzing diagrams and code snippets to identify scalability, security, and maintainability risks.
• Sales: Strategic account planning using CRM notes[.
• Marketing: Creating a multi-channel content kit for a product launch, including a press release, social posts, and a blog draft.
• Finance: Quarterly forecasts and variance analysis with proposed mitigation strategies.
• Operations: Process optimization plans based on SOP documents and performance metrics.

Model Deprecations
The GPT-5 launch retires several older models, including GPT-4o, GPT-4.1, GPT-4.5, GPT-4.1-mini, o4-mini, o4-mini-high, o3, and o3-pro. Existing conversations will automatically migrate to a GPT-5 equivalent. Chats with o3 will open in GPT-5-Thinking, while conversations with o3-Pro will open in GPT-5-Pro, a model available only on Pro and Team plans.

More Information for Enterprise Use
The company's OpenAI Academy site provides a complete take on the new upgrade, with lots of information and links to other resources like "GPT for Builders."

It also provide helpful notes for enterprise use, like this:

Note: On August 7th (August 14th for Enterprise), GPT-5 will become your default model with unlimited* messages. Teams users are able to use GPT-4o, OpenAI o3, o4-mini, GPT-4.1, and GPT-4.5 with the same limits as today for the first 60 days after launch. Enterprise Admins must toggle back to legacy models for their teams in Admin Settings.