OpenAI has officially launched GPT-4.1, along with GPT-4.1 mini and GPT-4.1 nano, bringing major advancements in coding, instruction following, and long-context processing to developers worldwide. And now, these models are also available in Microsoft Azure’s OpenAI Service and GitHub.
Whether you’re working on building smarter AI agents, analyzing large codebases, or deploying enterprise-grade AI solutions, GPT-4.1 is designed to boost productivity and innovation at every level.
💡 What’s New in GPT-4.1?
- Improved Coding Performance
GPT-4.1 leads the field in real-world software engineering tasks. It scores 54.6% on SWE-bench Verified, a 21% improvement over GPT-4o, and generates cleaner, functional code with fewer unnecessary edits. - Advanced Instruction Following
It scores 38.3% on the MultiChallenge benchmark, a 10.5% gain over its predecessor. GPT-4.1 is particularly strong at understanding multi-step instructions, maintaining context, and following complex prompts reliably. - Massive Context Window
All three models support up to 1 million tokens, allowing them to process entire codebases, lengthy documents, or multi-turn conversations—ideal for legal, technical, or enterprise use cases. - Lower Cost and Latency Options
- GPT-4.1 mini: Balanced performance and cost
- GPT-4.1 nano: Fastest and most cost-effective model, perfect for autocompletion or classification tasks
- Multimodal & Visual Understanding
GPT-4.1 performs strongly in image and video comprehension benchmarks, often outperforming GPT-4o.
GPT-4.1 in Azure OpenAI Service
With the Azure integration, GPT-4.1 becomes even more powerful:
- Available now in Azure AI Studio & GitHub Copilot.
- Supports tool calling and structured outputs, just like GPT-4o.
- Fine-tuning (coming soon) for GPT-4.1 and 4.1 mini, allowing developers to align the models with their own domain data, tone of voice, and business workflows. This will be managed through Azure AI Foundry, with full support for secure deployment and version control.
Ready to Build?
GPT-4.1 is a leap forward in real-world AI performance, whether you’re building customer service bots, advanced coding assistants, or enterprise-grade document analysis tools.
Now available via:
- OpenAI API (https://openai.com/index/gpt-4-1)
- Microsoft Azure OpenAI Service (https://azure.microsoft.com/en-us/products/ai-services/openai-service)
Explore the capabilities today and start creating your next-gen AI solutions with GPT-4.1.
