OpenAI Launches GPT-5 with Advanced Reasoning
August 28, 2025
OpenAI launched GPT-5 on August 7, 2025, touting "PhD-level intelligence" with built-in advanced reasoning for coding, planning, and agentic tasks. Available to Free, Plus, Pro, and Team users immediately, with Enterprise/Edu following. The rollout faced backlash over glitches, hallucinations, and a "colder" tone, prompting OpenAI to restore legacy models for paid users.
Tweets reflected mixed sentiments, praising coding strengths but criticizing the chaotic debut and emotional impacts, and many missed gpt-4o.
| Category | Metric / Claim | Key Benefit |
|---|---|---|
| Cost Efficiency | 25× cheaper than GPT-4 | Enables wider access (link) |
| Coding Win Rate | 70%+ vs. GPT-4 | Excels in complex tasks (link) |
| Reasoning Boost | 40% improvement over GPT-4 | Better for long chains and tool use |
| Training Scale | 170K-180K H100 GPUs | Massive compute investment for multimodal advancements (link) |
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