Grok 4.7, Claude Opus 5.5, and DeepSeek V4.1 Flash: Which Model to Choose in September

Over the past two weeks, the artificial intelligence market has seen significant shifts as xAI, Anthropic, and DeepSeek released updated versions of their flagship models. This article provides a detailed comparative analysis of Grok 4.7, Claude Opus 5.5, and DeepSeek V4.1 Flash. The author evaluates the performance of these neural networks based on independent benchmarks, assesses the cost-efficiency of executing standard tasks, and analyzes practical aspects of integration and access for users in Russia. Given the rapid pace of technological updates, choosing the optimal model has become critical for developers and businesses alike. The article helps navigate the current LLM landscape by offering an objective look at the strengths and weaknesses of each solution, while providing recommendations on how to select the right tool based on specific user needs and access constraints.