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OpenAI released three new models in its API: GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano, all outperforming previous versions with significant gains in coding and instruction following capabilities. GPT-4.1 scores 54.6 percent on SWE-bench Verified coding tasks, a 21.4 percent improvement over GPT-4o. The models feature expanded context windows of up to 1 million tokens. GPT-4.1 mini offers comparable performance to GPT-4o at half the latency and 83 percent lower cost, while GPT-4.1 nano performs best at low-latency tasks like classification and autocompletion. The new models are available immediately to all developers at reduced pricing, with GPT-4.1 costing 26 percent less than GPT-4o for typical queries. (OpenAI)