On August 8, 2025, we witnessed the biggest moment in OpenAI’s history. GPT-5 opened a new chapter in the artificial intelligence world. Now we don’t just have a chatbot in our pocket, but a team of PhD-level experts in every field! This revolution, which Sam Altman describes as “You’ll feel like you’re talking to an expert,” raises the bar to a completely different level with both its technical performance and human touch.
This new era creates as striking a difference as the iPhone’s transition from low resolution to Retina display. GPT-5 doesn’t just answer your questions; it writes code for you, plans calendars, conducts research, and takes a giant step on the path to AGI (Artificial General Intelligence).
What’s Changed? GPT-5’s Revolutionary Innovations
🧠 Smart Router System: Finding the Perfect Balance
GPT-5’s biggest innovation is the unified system approach. You no longer need to think about which model to choose! The real-time router system automatically decides based on the complexity of the question:
- Simple questions: Instant quick response
- Complex problems: Deep thinking mode is activated
- Manual control: You can force reasoning with commands like “Think hard about this”
💻 Coding: Now an Art Form
GPT-5 opens a new era in coding. While breaking records with a 74.9% success rate in the SWE-bench Verified test, it demonstrates these amazing capabilities:
- Single prompt aesthetic web applications, games, and mobile applications
- Significant progress in understanding typography, spacing, and white space
- Ability to generate 400+ lines of code in 2 minutes
- Performance exceeding GPT-4o in bug finding and fixing
Real Demo Example: In the live presentation, an interactive application explaining the Bernoulli effect was brought to life in just a few minutes!
🏥 Health: Your Reliable Assistant
GPT-5 takes the bar to other dimensions in the health field:
- 46.2% success in HealthBench Hard test (GPT-4o: 0%)
- Hallucination rate only 1.6% (GPT-4o: 12.9%)
- Instantly simplifies medical reports, allowing you to prepare before doctor consultations
- Regional adaptation: Recommendations suitable for your country’s health system
🎨 Multimodal Intelligence: Perfect in Every Format
- 84.2% success in MMMU test - peak in visual understanding
- Video analysis, diagram interpretation, and table processing capabilities
- CharXiv-Reasoning: 81.1% success in understanding scientific figures
🛡️ Safe Completions: Security Revolution
New approach that leaves behind the old “reject or accept” system:
- Explains why it’s rejecting and offers safe alternatives
- In dual-use scenarios (explosives, biology, etc.), provides partial answers while being both helpful and maintaining security
- Deception rate: Only 2.1% in GPT-5 vs. 4.8% in o3
👤 Personalization: Your AI is Now More “You”
- 4 personality profiles: Cynic, Robot, Listener, Nerd
- Chat colors and interface customizations
- Gmail and Google Calendar integration (for Pro users)
- 400K token long context window
🗣️ Advanced Voice Experience
- Speed settings: Slow/fast speech options for language learning
- Multilingual support: Fluent conversation even in difficult languages like Korean
- Hourly access for free users, unlimited experience for paid users
🎯 Impressive Experiences from Real Users
Carolina Millon - Cancer Patient
“When I was diagnosed with three different cancers at age 39 within one week, I uploaded my biopsy reports to GPT. Complex medical terms became understandable in seconds. When I spoke with my doctor 3 hours later, I was able to have a prepared conversation understanding what I was facing.”
Sam Altman - OpenAI CEO
“GPT-5 is like having a PhD-level expert, a whole team in your pocket! This is as striking a difference as the iPhone’s transition from low resolution to Retina.”
Elaine Ya Le - Demo Expert
“When I said ’explain the Bernoulli effect and create a visual demo,’ GPT-5 didn’t just explain - it coded an interactive application. A complete simulation where I could change air speed and observe pressure differences!”
Michael Truell - Cursor CEO
“When we asked GPT-5 questions about our codebase, it identified architectural decisions and security trade-offs that took us weeks to think through in minutes.”
BBVA Financial Analyst
“We can now complete financial analyses that used to take 3 weeks in a few hours with GPT-5. It surpasses all models in the market in terms of accuracy and speed.”
🏢 GPT-5 in Business: The Choice of 5 Million Enterprises
GPT-5 is no longer just a chatbot - it’s a comprehensive business partner that provides expert-level assistance in every department. Currently, 5 million businesses use OpenAI technologies, and this number is expected to multiply with GPT-5.
🔬 Health & Pharmaceutical Sector
Amgen - Leading pharmaceutical company in the US:
- Deep reasoning with complex data in drug design
- Scientific literature review and clinical data analysis
- Acceleration in research processes
Oscar Health - New York-based insurance company:
- Industry’s best model for clinical reasoning
- Matching complex medical policies with patient conditions
- Quality improvement in patient services through automation
💰 Finance Sector
BBVA - Madrid-based multinational bank:
- Completing 3-week analyses in a few hours
- Surpassing all competitor models in accuracy and speed
- Risk assessment and portfolio optimization
🏛️ Public Sector
US Federal Government - Historic decision:
- 2 million federal employees will gain access to GPT-5
- Quality improvement in citizen services is targeted
- Digitalization of bureaucracy and efficiency gains
📊 Department-Based Usage Scenarios
| Department | Use Case | Time Savings | GPT-5 Prompt Example |
|---|---|---|---|
| Engineering | Multi-repo code analysis | 80% | "Analyze architecture across multiple repositories, identify security risks" |
| Sales | Customer analysis | 70% | "Analyze recent meeting transcripts, extract opportunities and risks" |
| Marketing | Content production | 85% | "Create multi-channel content plan, generate blog/email/social media texts" |
| Finance | Forecasting & analysis | 90% | "Summarize Q3 financial data, perform Q4 risk analysis and forecasting" |
| HR | Process optimization | 60% | "Analyze hiring process, find inefficiencies and suggest improvements" |
💼 Critical Actions for Managers
- Team Training: Share GPT-5’s innovations with your team, encourage them to experiment
- Admin Integration: Integrate GPT-5 into workflows from the admin panel
- Custom GPT Transition: While GPT-4 access continues for the first 60 days, start developing custom solutions with GPT-5
- API Strategy: Evaluate new
gpt-5,gpt-5-mini, andgpt-5-nanoversions
📈 Benchmark Performance: Breaking Records
GPT-5 has redefined the bar in academic and real-world tests. Here are the performance data that leave competitors behind:
🏆 Coding & Engineering
- SWE-bench Verified: 74.9% (GPT-4o: 30.8%, o3: 69.1%)
- Aider Polyglot: 88.0% (o3: 79.6%) - Multilingual code editing
- Front-end Coding: Human evaluators prefer GPT-5 70% of the time
🧮 Mathematics & Science
- AIME 2025: 94.6% (high school math olympiad)
- GPQA Diamond: 88.4% (PhD-level science questions)
- FrontierMath: 32.1% (expert-level mathematics)
- HMMT: 100% (Harvard-MIT mathematics tournament)
👁️ Multimodal Intelligence
- MMMU: 84.2% (university-level visual problem solving)
- VideoMMU: 84.6% (video-based reasoning)
- CharXiv-Reasoning: 81.1% (scientific figure analysis)
🏥 Health & Reliability
- HealthBench: 67.2% (GPT-4o: 32.0%)
- HealthBench Hard: 46.2% (o3: 25.5%, GPT-4o: 0%)
- Hallucination rate: 4.8% (thinking mode), 20.6% (normal mode)
- Deception rate: 2.1% (o3: 4.8%)
🎯 Real World Tasks
- Economically Important Tasks: 47.1% (competing half-and-half with experts)
- Tau2-bench Function Calling: 96.7% (telecom), 81.1% (retail)
- Scale MultiChallenge: 69.6% (multi-turn instruction following)
- COLLIE: 99.0% (instruction following in free writing)
⚡ Efficiency Gains
- 50-80% fewer tokens while achieving the same performance as o3
- Faster thinking: Less reasoning time for same quality results
- Context Window: Up to 400K tokens (increase from 200K)
💰 Pricing and Access: GPT-5 for Everyone
🎁 Free Users
- Direct access to GPT-5 (for the first time!)
- Switch to GPT-5 Mini when limit is reached (even stronger than o3)
- Voice chat hourly access
- Basic multimodal features
💎 Plus Subscription - $20/month
- High usage limits
- Access to GPT-5 Thinking model
- Custom GPTs for personalization
- Gmail/Google Calendar integration
- Advanced voice chat unlimited
🚀 Pro Subscription - $200/month
- GPT-5 Pro unlimited access
- Extended reasoning for the most difficult problems
- Priority API access
- Custom color themes
- Highest quality responses
🏢 Enterprise Solutions
- Team: Generous limits for organizations
- Enterprise: Will be available next week
- Education: Special access for educational institutions
- Federal: Special integration for US government employees
🔧 API Pricing (Developers)
| Model | Input Tokens (1M) | Output Tokens (1M) | Feature |
|---|---|---|---|
| GPT-5 | $1.25 | $10.00 | Full capacity reasoning |
| GPT-5 Mini | $0.25 | $2.00 | Fast responses, low cost |
| GPT-5 Nano | $0.05 | $0.40 | Ultra affordable, basic responses |
| GPT-5 Chat Latest | $1.25 | $10.00 | Latest chat model |
New API Features:
- Reasoning Effort: Minimal, medium, high levels
- Custom Tools: Free text instead of JSON
- Structured Outputs: RegEx and context-free grammar support
- Verbosity Control: Low, medium, high detailed response options
- Tool Call Preambles: Explanation before tool usage
⚙️ Technical Infrastructure and Training Innovations
🏗️ Microsoft Azure AI Supercomputers
GPT-5 was trained on Microsoft Azure AI supercomputers. This powerful infrastructure:
- Distributed training architecture with gigantic model capacity
- Parallel test-time compute for GPT-5 Pro’s extended reasoning
- Scalable inference infrastructure supporting millions of users
🔄 Synthetic Data Breakthrough
A synthetic data revolution occurred in GPT-5’s training:
- Previous generation models generate quality training data for new generations
- Ability to teach complex topics not found on the web
- Not just more data, but the right kind of data strategy
🧠 Pretraining + Reasoning Integration
- Router algorithm continuously learns from real user data
- Optimized with model switching, preference rates, and measured correctness
- Future goal of unified system within a single model
🔮 What to Expect in the Future?
🧠 Recursive Improvement Loop
According to OpenAI’s research director Sebastien Bubeck, GPT-5 is the beginning of the recursive development loop. Future generation models will:
- Be able to generate their own training data
- Continue learning from previous generation models
- Deepen the pretraining and reasoning interaction
🖥️ Computer Use Capabilities
- Screen viewing and clicking abilities
- DevOps and system management automation
- Managing projects that last days, weeks, or even months
🌐 Global Impact
- 700 million weekly users expected to multiply
- Proliferation of advanced tools like ChatGPT Agent
- Critical milestones on the path to AGI
🏁 Conclusion: The Doors of a New Age Are Opening
GPT-5 is not just a technical upgrade - it’s a turning point in artificial intelligence history. As Sam Altman said, you now have a team of PhD-level experts in your pocket. This model:
✅ In coding combines aesthetics and functionality ✅ In health provides reliable consulting ✅ In business multiplies efficiency ✅ In security sets new standards ✅ In personalization creates unique experiences
Like the iPhone’s Retina screen revolution, GPT-5 creates that striking difference in the AI world. It’s time to not work with AI, but collaborate with AI.
🚀 Try It Now!
Try GPT-5 on ChatGPT or watch the introduction video.
This revolution is just the beginning. Push the boundaries of your imagination with GPT-5, because the future is here!
🔍 FAQ: Frequently Asked Questions
Q: Is GPT-5 available for free users too? A: Yes! For the first time, the most advanced model is open to free users too. When the limit is reached, it switches to GPT-5 Mini.
Q: Is the transition from GPT-4o to GPT-5 automatic? A: Yes, GPT-5 is now the default model. Old models like GPT-4o, GPT-4.1, o3 are being retired.
Q: Which languages does it support? A: Advanced support in 50+ languages including Turkish. Multilingual support is available even in voice chat.
Q: How can I use it in the API?
A: You can start immediately with the gpt-5 endpoint. Adjust performance with the reasoning effort parameter.
Q: I have security concerns, how secure is it? A: Most secure model with Safe Completions. 2.1% deception rate and transparent explanations.