Key Takeaways
- Microsoft has introduced Decision-1, a specialized AI model for decision-making tasks.
- The model is 35 times faster and up to 200 times cheaper than GPT-6 Sol.
- Decision-1 excels in tasks like classification and routing, outperforming larger models in accuracy.
Microsoft has launched a new AI model named Decision-1, designed for decision-making tasks such as classification, routing, and verification. Unlike general-purpose models, Decision-1 is optimized to handle predefined options, making it faster and more cost-effective.
According to Microsoft, Decision-1 can outperform or match larger general-purpose AI models on decision-focused workloads while running significantly faster and at a fraction of the cost. The model is based on Alibaba’s Qwen3.5-9B and has been post-trained by Microsoft for specific tasks.
The model receives a fixed set of possible answers and assigns a calibrated probability score to each option. It can handle yes/no questions, multiple-choice tasks, and ratings. Additionally, it can evaluate AI responses or agent actions against a predefined rubric.
Microsoft has tested Decision-1 across 36 benchmarks containing nearly 150,000 questions. The model achieved the highest overall accuracy among the models evaluated. It was also 2.5 times faster than H2O-Lightning-4B v1.1 and 35 times faster than GPT-6 Sol.
Xbox Research used Decision-1 to categorize over 10,000 pieces of player feedback and reviews into different themes. The model delivered quality competitive with GPT-6 Sol while being more than 14 times faster and around 200 times cheaper for that workload.
Microsoft warns that the model should not be the sole basis for high-impact decisions involving people, including areas such as employment or credit. The company emphasizes that the model’s consistency is particularly important for tasks such as routing and automated workflows.
In internal testing, Decision-1 changed its decision only 1.3% of the time on average when the same question was phrased or ordered differently. This consistency is crucial for tasks where minor changes in phrasing should not produce completely different decisions.
Microsoft has already integrated Decision-1 into internal products and teams, demonstrating its practical applications in real-world scenarios. The model’s performance and cost-effectiveness make it a valuable tool for businesses and organizations looking to streamline decision-making processes.
