2410: Claude 3.5 Sonnet as coding agent in GitHub Copilot 2502: Claude 3.7 Sonnet and Claude Code (CC) And today (2603): 1M context window is everywhere Gemini 1.5 Pro (2405, source) Claude (Sonnet|Opus) 4.6 (2603, source) GPT-5.4 (2603, source) TUI tool is everywhere Claude Code, 80.1k opencode, 126k codex, 66.4k gemini-cli, 98.4k pi-mono, 26k mistral-vibe, 3.5k