#context-window 3 items 7 мая xAI Releases Grok 4.3 with 1M Context, 40-60% Price Cuts, and Agentic Benchmark Gains xAI models-llm 9 июл GitHub Copilot in VS Code — June 2026: Browser Tools GA, Parallel Sessions, 1M Context GitHub tools 19 июл Codex CLI 0.144.6 fixes GPT-5.6 context-window regression OpenAI tools