While Claude and GPT are still the two best choices, Gemini seems to be catching up on coding agent index with agy-cli
Summary
Artificial Analysis' new Coding Agent Index shows Claude Sonnet 5.5 in Claude Code leading at 68, but Gemini 4 Argon in Antigravity CLI (64) is close behind at less than half the cost, while GPT-6.1 Sol in Codex scores 63 at only $1.04 per task.
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