OpenAI has launched GPT-6 Sol and GPT-6 Luna, expanding its lineup to allow users to select models based on task complexity, scale, required processing speed, and budget.
On September 23, OpenAI introduced GPT-6 Sol and Luna. Both models were trained similarly to GPT-6 Astra and have improved performance in specialized tasks, factual accuracy, coding, and computer usage compared to their predecessors, GPT-5.6 Sol and GPT-5.6 Luna.
While GPT-6 Astra is designed for high-performance critical tasks, Sol and Luna focus on delivering enhanced performance more quickly and cost-effectively. OpenAI stated that this allows for the use of GPT-6 in everyday tasks and various services.
OpenAI reported that in the 'Automation Bench,' which evaluates AI performance in real work environments, GPT-6 Sol outperformed GPT-6 Astra. The Automation Bench assesses the ability to complete tasks from start to finish using 47 tools across sales, marketing, operations, customer support, finance, and human resources. GPT-6 Sol achieved a score of 33.2% at the highest 'xhigh' inference level, surpassing GPT-6 Astra's 'low' inference level score of 30.3%.
GPT-6 Luna scored 5.4 percentage points higher than GPT-5.6 Luna at the 'high' inference level, with task costs reduced by 58%. The inference level indicates the extent of reasoning resources the model uses to solve problems. For complex tasks, users can increase the inference level to prioritize performance, while for relatively simple tasks, they can lower it to enhance speed and cost efficiency.
Factual accuracy has also improved. OpenAI evaluated factual accuracy based on anonymized real ChatGPT conversations where users pointed out factual errors in previous models. GPT-6 Sol recorded about half the errors of GPT-5.6 Sol, achieving near the factual accuracy of GPT-6 Astra at a lower cost.
Improvements were also made in coding performance and development efficiency. In technical and coding-related conversations, the model reduces jargon, awkward expressions, and unnecessary details to convey key points more clearly and concisely.
GPT-6 Sol and Luna are available to Plus, Pro, Business, Enterprise, and Edu users through ChatGPT Work and Codex. Free and paid plan users can access GPT-6 Luna via the desktop app.
* This article has been translated by AI.
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