Users protest as Google Antigravity price floats upward
… Antigravity supports five LLMs large language models : these being Gemini 3.1 Pro with High and Low options , Gemini 3 Flash, Anthropic Claude Sonnet 4.6 or Claude Opus 4.6, and OpenAI's GPT-OSS 120B. Flash is the cheapest model, tuned for efficiency. …