GPT-4.1 Nano

Overview

GPT-4.1 Nano prioritizes speed and affordability while still offering access to GPT-4.1’s long-context capabilities. It is designed for high-volume tasks such as classification, routing, and lightweight summarization, where responsiveness and cost predictability matter more than deep reasoning.

Capabilities

• Ultra-low latency for real-time applications
• Cost-optimized throughput for high-frequency usage
• Long-context inputs where supported by deployment
• Text and image inputs with concise text outputs

Strengths

• Excellent for classification, tagging, and routing
• Predictable costs for large-scale automation
• Handles basic document understanding at scale
• Good first-pass model before escalation

Limitations and Considerations

• Limited depth for complex reasoning and creative tasks
• Not ideal for nuanced multi-step analysis
• Best results come from tightly scoped prompts

Best Use Cases

GPT-4.1 Nano excels at:

• High-frequency API calls
• Real-time processing pipelines
• Quick classification tasks
• Budget-optimized deployments
• Prototype and development testing