GPT-4.1

Overview

GPT-4.1 extends GPT-4-class capabilities with a much larger context window and improved instruction-following. Public documentation highlights a million-token context option in some deployments, enabling deep analysis across massive documents, long conversations, and large codebases. It is designed as a dependable general-purpose model for enterprises that need scale and accuracy without moving into the more specialized o-series reasoning models.

Capabilities

• Long-context processing for large document collections and codebases
• Improved instruction following over earlier GPT-4 variants
• Multimodal inputs for text and image understanding
• Tool and function calling for automation workflows

Strengths

• Strong across a broad range of tasks (analysis, coding, summarization)
• Reliable for enterprise knowledge management workflows
• Handles long conversations without losing context
• Good balance of quality and throughput

Limitations and Considerations

• Million-token context may not be available in every deployment
• Higher cost and latency than GPT-4.1 mini/nano
• For deep reasoning, o-series models may be stronger

Best Use Cases

GPT-4.1 is perfect for:

• Enterprise knowledge management
• Long document analysis
• Complex multi-turn conversations
• Professional content creation
• General-purpose AI assistance