GPT-5 is a top-tier frontier AI model, developed by OpenAI and released in August 2025. It is a proprietary closed-weight model, available through the OpenAI API. It supports a 400K-token context window, adequate for most documents and multi-turn applications.
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GPT-5 was released on August 7, 2025 as OpenAI’s first model to self-report above-human performance on several hard reasoning benchmarks. It was the first GPT to integrate text, image, and audio input as a unified capability at the reasoning level rather than through a pipeline of specialised models. GPT-5 set the foundation for the current frontier tier: its 400K context window was, at release, the longest available from OpenAI; its coding improvement over GPT-4o was significant enough to displace a large portion of Codex-based and GPT-4o-based development tooling. The launch drove the fastest acceleration in GPT API adoption since ChatGPT’s debut in 2022.
It handles code generation, bug fixing, and code review for typical development tasks, though frontier models score significantly higher on fully autonomous complex engineering.
Scientific & Technical Reasoning
It handles demanding scientific reasoning, research literature summarisation, and knowledge-intensive tasks across STEM disciplines.
Strengths and limitations
Strengths
+Solid coding assistance
+Advanced scientific Q&A
+Long-context tasks (400K context window)
Limitations
−Closed-weight — cannot be self-hosted or fine-tuned on private data
Use it in FlowHunt
Use GPT-5 in any flow, next to your own tools and knowledge sources.
About OpenAISan Francisco, CA · Founded 2015 · openai.com
OpenAI was founded in December 2015 as a nonprofit AI research laboratory by Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, John Schulman, and Wojciech Zaremba, with the mission of developing artificial general intelligence (AGI) that benefits all of humanity. In 2019 it created a capped-profit subsidiary, OpenAI LP, to raise institutional capital and scale model training. The company is known for the GPT series of language models (GPT-1 through GPT-6.1), the DALL-E image generation series, Whisper speech recognition, and Sora video generation. OpenAI operates the ChatGPT consumer application, a developer API, and enterprise services through Microsoft Azure. As of 2026 it maintains a close strategic partnership with Microsoft, which is the company's largest investor and cloud provider.
GPT-5 is a top-tier frontier AI model, developed by OpenAI and released in August 2025.
GPT-5 is a proprietary closed-weight model. Its weights are not publicly available — access is through the OpenAI API only.
GPT-5 supports a 400K-token context window, adequate for most documents and multi-turn applications.
Yes — GPT-5 is directly available in FlowHunt. You can use it to build AI agents, automated workflows, chatbots, and document processing pipelines without any additional setup.
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