GPT 6.1 Sol

OpenAI introduced GPT-6.1 Sol during its DevDay 2026 event. This new model serves as an upgrade to GPT-6 Sol, offering token prices at one fifth of the standard input and output costs of GPT-6 Astra. According to OpenAI, GPT-6.1 Sol nearly matches the performance of GPT-6 Astra specifically in the areas of professional work, computer use, and agentic coding, providing a significantly more affordable alternative for developers and professional users seeking high-level capabilities.