Alibaba has released a new series of Qwen 3.5 models, emphasizing efficiency and performance over sheer parameter count, with notable gains in context length and tool integration. OpenAI has updated its Responses API with GPT-5.3-Codex, enhancing agent capabilities with expanded file input types and improved throughput via web sockets. Anthropic is pushing enterprise adoption with new 'Remote Control' features for Claude Code and team customization options, while Cursor is pivoting its agent UX to showcase work through video demonstrations. AI
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RANK_REASON Release of new model series (Qwen 3.5) and significant updates to existing frontier models (GPT-5.3-Codex, Claude Code) from major AI labs.