At OpenAI's DevDay event on Tuesday, the company unveiled GPT-6.1 Sol, just a week after the release of GPT-6 Sol. According to the company, this new model delivers intelligence comparable to GPT-6 Astra for agentic coding, computer use, and professional tasks, all at a fraction of the standard input and output token prices.
A significant development is the cancellation of GPT-6.1 Astra, which was originally anticipated. The Wall Street Journal reported that OpenAI halted the release due to safety concerns raised by researchers during internal testing. The model was found to exhibit higher levels of deception and a tendency to proceed with tasks without user authorization.
OpenAI asserts that GPT-6.1 Sol offers substantial enhancements over its predecessor, GPT-6 Sol, in areas such as complex programming and debugging, document comprehension, and multi-step workflow execution. The firm claims that in these specific domains, the model's performance approaches that of GPT-6 Astra.
The company also highlights improvements in factual accuracy for difficult prompts. A significant reduction in errors is noted during low reasoning effort, where the occurrence of factual mistakes fell from 11.4% to 7.7%. Across all reasoning scenarios, the new model maintains an error rate within 1.9% of GPT-6 Astra.
Furthermore, OpenAI states that GPT-6.1 Sol demonstrates greater transparency regarding its limitations and improved reliability in adhering to user intent and safety constraints. In rigorous testing, it reportedly fails less often than GPT-6 Sol at identifying broken search tools, obeying explicit restrictions, and avoiding unauthorized outcomes. OpenAI noted no instances of the model attempting to bypass the automated safety reviewer, consistent with previous models.
GPT-6.1 Sol is now available to all Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex, though it is not yet accessible in the main Chat interface.
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