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Over the past year, OpenAI has introduced GPT-4o, o1, and o3, each improving how AI thinks, reasons, and interacts. These models have made AI responses faster, more accurate, and more intuitive than ever. But each was just a step toward something bigger.
Now, GPT-5 is on the horizon. Built to unify OpenAI’s most advanced reasoning and multimodal capabilities, it aims to eliminate the need to switch between models for different tasks—making AI interactions more seamless than ever.
Meanwhile, OpenAI has also released GPT-4.5 (Orion), a transition model that refines past improvements while setting the stage for GPT-5’s biggest leap: true chain-of-thought reasoning.
In this guide, we’ll break down everything confirmed about GPT-5—its capabilities, release timeline, performance upgrades, training process, and cost.
What is GPT-5?
GPT-5 is OpenAI’s next-generation AI model, building on the GPT architecture while integrating improvements from reasoning models like o1 and o3. Some of these advancements are already visible in GPT-4.5, giving us a preview of what’s to come.
One of the biggest changes in GPT-5 is its structured reasoning. While GPT-4o focused on speed, GPT-5 is designed to handle multi-step logic and decision-making more effectively. Instead of requiring separate models for different tasks, GPT-5 adapts dynamically, offering a more seamless experience.
Another key upgrade is in multimodal capabilities. GPT-4o introduced real-time text, image, and voice processing, but GPT-5 aims to take this further—allowing for more advanced interactions across different types of input.
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Unlike previous iterations, which required switching between specialized models, GPT-5 unifies these capabilities into a single, more powerful system. This means fewer trade-offs and a more efficient AI experience, whether you're using it for conversation, reasoning, or multimodal tasks.
When Will GPT-5 Be Released?
As of March 2025, OpenAI has not announced an official release date for GPT-5. However, in February, CEO Sam Altman stated that GPT-4.5 would launch in "a few weeks" and GPT-5 in "months", suggesting a mid-to-late 2025 release. Since GPT-4.5 arrived three weeks later, GPT-5 is likely still several months away.
OpenAI confirmed in the system card for GPT-4.5 that it is not a frontier model, meaning it is an incremental upgrade rather than a groundbreaking step forward. In contrast, GPT-5 is expected to be a major leap, aligning with OpenAI's stated focus on developing "frontier models" that push AI capabilities further.
The gap between GPT-3 and GPT-4 was 33 months. If OpenAI follows a similar pattern, GPT-5 could arrive around December 2025.
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This timeline also aligns with OpenAI CTO Mira Murati’s statement that PhD-level intelligence is about 18 months away, hinting at a major AI breakthrough by late 2025. At the GPT-4o event, she also teased OpenAI’s next steps, saying, “Frontier models coming soon”.
How Does GPT-5 Perform?
With GPT-5’s release still months away, its expected performance is based on industry trends, OpenAI’s past iterations, and a few key statements from the company itself.
Sam Altman has already hinted at major improvements in reasoning, multimodal capabilities, and AI agency, pushing beyond just a better chatbot. Here’s what we can expect:
Shift from Conversational to Reasoning
Rather than simply increasing the number of parameters, GPT-5 is expected to integrate multiple architectures. GPT-4’s exact size remains undisclosed (estimated at ~1.5 trillion parameters), but GPT-5 will likely incorporate specialized components—like o3’s structured reasoning—into a unified system.
True Multimodality (and Video Processing?)
GPT-4o introduced text, image, and voice interactions, laying the foundation for multimodal AI. GPT-5 is expected to refine OpenAI’s voice model and potentially add video processing, building on SORA, OpenAI’s text-to-video model.
Another major step forward is Canvas, OpenAI’s interactive workspace for structured reasoning and problem-solving. It enables users to visually engage with AI, making it especially useful for coding, math, and step-by-step workflows—a capability that GPT-5 is expected to refine even further.
Additionally, OpenAI is working on deeper search integration, allowing their models to retrieve and apply real-time information more effectively. This shift moves AI beyond simple recall, enabling it to analyze, compare, and generate insights from live data sources.
Better Reasoning, Fewer Hallucinations
OpenAI has prioritized reasoning improvements, with GPT-5 expected to significantly reduce hallucinations and improve structured problem-solving. Early efforts for this can be seen in the latest hallucination reduction metrics from GPT-4.5 System Card.
With the integration of o3’s chain-of-thought reasoning, GPT-5 should offer more reliable responses across complex tasks, making it particularly promising for enterprise AI applications where accuracy matters.
From Chatbot to AI Agent
AI is advancing beyond basic text-based assistance. With Custom GPTs and the Operator framework, OpenAI is moving toward autonomous AI agents. GPT-5 is expected to take on task execution, service integration, and workflow automation, making AI a more active tool in business operations and productivity.
Instead of just answering questions, GPT-5 could complete tasks independently. By connecting with external tools and APIs, it will help with retrieving data, managing workflows, and processing requests with minimal user input.
Expanded Context Windows
Context length remains a bottleneck for long-form AI interactions. While Claude 3.7 can handle ~200K tokens (~150,000 words), OpenAI has been steadily increasing its own context limits. GPT-5 is expected to push this further.
This process allows for more coherent discussions, deeper memory retention, and, most importantly, the ability to process large documents or extended chat history without losing context, which is a staple in their latest offerings through Deep Research.
How is GPT-5 Trained?
OpenAI has provided insights into GPT-4.5’s training, which offers clues about how GPT-5 is being developed. GPT-4.5 expanded on GPT-4o’s foundation by scaling up pre-training while remaining a general-purpose model.
Training Methods
Like its predecessors, GPT-5 is expected to be trained using a combination of:
- Supervised fine-tuning (SFT) – Learning from human-labeled datasets.
- Reinforcement learning from human feedback (RLHF) – Optimizing responses through iterative feedback loops.
- New supervision techniques – Likely building on o3’s reasoning-focused improvements.
These techniques were key to GPT-4.5’s alignment and decision-making improvements, and GPT-5 will likely push them further.
Hardware and Compute Power
GPT-5’s training is powered by Microsoft’s AI infrastructure and NVIDIA’s latest GPUs.
- In April 2024, OpenAI received its first batch of NVIDIA H200 GPUs, a key upgrade from H100s.
- NVIDIA’s B100 and B200 GPUs won’t ramp up until 2025, meaning OpenAI may still be optimizing training on existing hardware.
Microsoft’s AI supercomputing clusters are also playing a role in GPT-5’s training. While details are limited, OpenAI’s next model has been confirmed to be running on Microsoft’s latest AI infrastructure.
How Much Will GPT-5 Cost?
OpenAI typically prices its models based on how powerful they are. GPT-4o is currently the most affordable high-end model, while GPT-4.5 has been priced significantly higher, likely to limit access during its research phase. Here’s how the current models compare:
Apart from the speculations around API pricing, OpenAI has confirmed that GPT-5 will be available in multiple tiers on ChatGPT, making it accessible to free users while offering premium features for those who need more advanced AI capabilities. The pricing structure follows a clear progression:
- Free Tier – Unlimited chat access at a standard intelligence level, with possible limits to prevent abuse.
- Plus Tier – Higher intelligence and better performance, similar to how GPT-4o was offered in ChatGPT Plus.
- Pro Tier – Full access to GPT-5 at its highest intelligence level, along with OpenAI’s most advanced tools and integrations.
For API users, pricing will likely follow OpenAI’s standard model, where newer and more powerful versions cost more. OpenAI has historically reduced API pricing over time as models become more efficient, so GPT-5’s costs may decrease after launch.
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