GPT-5 is now live

OpenAI's GPT-5, the latest and most advanced model from the company, introduces significant improvements in reasoning capabilities, reliability, and domain-specific applications, notably excelling in complex reasoning and health-related inquiries. The model features a dynamic reasoning ability, which greatly reduces the incidence of hallucinations and supports a vast 400,000 token context window, accommodating up to 128,000 output tokens. It's available in different variants, including GPT-5-mini and GPT-5-nano, each tailored for specific use cases ranging from balanced performance and cost-efficiency to high-throughput tasks. Pricing varies according to the variant, with the standard GPT-5 model commanding higher costs per million tokens compared to its mini and nano counterparts. Earlier versions, known as Horizon Alpha and Beta, have been phased out, and users are required to use their own API key to access GPT-5 through OpenAI's API.

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