
GPT-5 review: what is it good for, reasoning on by default, hallucinations down, prompt rules change
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GPT5 Launch and Model Architecture (00:00:00)
- OpenAI announces GPT5 after multiple delays
- Four model variants: GPT5, GPT5 Pro, GPT5 Mini, and GPT5 Nano
- Introduction of intelligent router system that automatically selects models
- Launch issues with router sending queries to wrong models initially
The Router Revolution: No More Model Selection (00:05:06)
- How the router uses previous ChatGPT usage signals to train selection
- Product decision to remove model dropdown confusion for users
- Small model in front makes decisions based on task complexity
- Users can influence selection by asking model to "think hard"
Dramatic Improvements in Accuracy (00:12:43)
- 45% hallucination rate vs GPT4's 80% rate
- Better data quality and reinforcement learning improvements
- Focus on agentic behavior and context gathering
- Tool calling accuracy improvements for real-world applications
Three Key Enhancement Areas (00:24:34)
- Coding: Direct competition with Claude and Anthropic's models
- Writing: Shorter, more concise, better quality outputs
- Medical/Healthcare: Improved analysis of health documents and test results
- Each area received specialized reinforcement learning
Developer Implementation Challenges (00:18:13)
- Markdown disabled by default requiring explicit instructions
- Shorter instructions work better than detailed prompts
- Need to rethink system prompts and instruction patterns
- Different behavior requires rewriting existing implementations
Pricing and Competitive Positioning (00:29:13)
- GPT5 offers best price-to-performance ratio in market
- 1/12 the cost of competing models like Claude Opus 4.1
- Free tier users get access to GPT5 with routing
- Pro tier ($200/month) provides research-grade intelligence
Real-World Implementation at element451 (00:20:11)
- Immediate deployment for summarization and classification tasks
- Evaluation ongoing for higher-stakes applications
- Benefits of pluggable AI architecture for new models
- Different models for different latency requirements
Market Impact and User Adoption (00:40:03)
- Free user reasoning model usage jumped from 1% to 7% in days
- Plus users increased from 7% to 24% reasoning model usage
- Traffic doubled overnight causing serving challenges
- OpenAI deprecating all previous models to focus resources
The Future of AI Assistants (00:43:22)
- Evolution from assistant to "chief of staff" capability
- Model knows when to act and how hard to think
- Implications for higher education automation
- Why institutions should adopt GPT5 immediately
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Connect With Our Co-Hosts:
Ardis Kadiu
https://www.linkedin.com/in/ardis/
https://x.com/ardis
Dr. JC Bonilla
https://www.linkedin.com/in/jcbonilla/
https://x.com/jbonillx
About The Enrollify Podcast Network:
Generation AI is a part of the . If you like this podcast, chances are you’ll like other Enrollify shows too!
Enrollify is made possible by Element451 — The AI Workforce Platform for Higher Ed.
Learn more at element451.com.
- - - -
Connect With Our Co-Hosts:
Ardis Kadiu
https://www.linkedin.com/in/ardis/
https://twitter.com/ardis
Dr. JC Bonilla
https://www.linkedin.com/in/jcbonilla/
https://twitter.com/jbonillx
About The Enrollify Podcast Network:
Generation AI is a part of the Enrollify Podcast Network. If you like this podcast, chances are you’ll like other Enrollify shows too!
Enrollify is made possible by Element451 — The AI Workforce Platform for Higher Ed. Learn more at element451.com.