GPT-5
by OpenAIOpenAI's frontier model launched August 2025 with unified reasoning and multimodal capabilities.
About GPT-5
GPT-5, launched August 7, 2025, is OpenAI's flagship frontier model combining the capabilities of previous GPT-4 and o-series reasoning models into one unified system. It adapts reasoning depth based on task complexity—simple questions get fast responses, complex problems get deep thinking. GPT-5.1 and GPT-5.2 Instant followed in early 2026 with further improvements.
Key Features
Works With
OpenAI API
Azure OpenAI
ChatGPT
Assistants API
Responses APIPerfect For
Getting Started
- 1
Sign up at platform.openai.com
- 2
Get API key
- 3
Use gpt-5 model ID
- 4
Integrate via OpenAI Node/Python SDK
What Makes GPT-5 Different?
Unified reasoning + generation model
Adaptive thinking depth
Best general benchmark scores (2025)
Integrated with entire OpenAI ecosystem
Pros & Cons
Pros
- Best-in-class general capability
- Adaptive reasoning (fast to deep)
- Massive ecosystem and third-party support
- Continuous updates (5.1, 5.2, 5.3)
Cons
- Expensive for high-volume use
- Closed source
- API waitlists for new features
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