Google Antigravity vs OpenCode — Which AI Agent Is Better?
An in-depth comparison of Google Antigravity and OpenCode across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
An in-depth comparison of Google Antigravity and OpenCode across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
Pick a winner in each category — you can change your vote anytime.
Antigravity is Google's swing at the agentic IDE: a VS Code-style environment where an agent manager dispatches agents across the editor, terminal, and a Chrome instance they control, leaving verifiable artifacts — plans, screenshots, recordings — as they work. With Gemini 3 Pro behind it and a free public preview, the capability ceiling is genuinely high. It's also early: capacity limits, preview rough edges, and open questions around the browser-control surface mean production teams keep a human on the loop.
OpenCode is the opposite risk profile: a smaller, stable, open-source terminal agent that does the core job — plan, edit, run — with LSP integration and clean session management, using whatever model you point it at. No preview caveats, no vendor dependency, no browser-control questions.
Choose by risk appetite as much as by features: Antigravity is the most agentic experience you can try today, OpenCode is the one you can rely on unchanged next quarter.
AntigravityOpenCodeChoose Google Antigravity if you are developers who want to try the most agentic IDE experience available today. Choose OpenCode if you are terminal users who want a polished AI coding interface with LSP support.
In our editorial scoring, Google Antigravity leads in 2 of six categories (output quality and autonomy), while OpenCode leads in 1 (reliability). On price, Google Antigravity runs free public preview and is proprietary; OpenCode runs free (byo api key) / pro via standard compute and is open source.
Antigravity is Google's agentic development platform, launched alongside Gemini 3: a VS Code-style IDE where an agent manager dispatches agents that work across the editor, terminal, and a Chrome browser they control — producing verifiable artifacts (plans, screenshots, browser recordings) as they go. The free public preview and Gemini 3 Pro quality made it an instant heavyweight, but it's still early: capacity limits, preview rough edges, and early prompt-injection concerns around the browser-control surface mean production teams should keep a human on the loop.
OpenCode is an open-source terminal AI coding agent with a beautiful TUI (text user interface). It supports multiple LLM providers, has LSP integration for intelligent code understanding, and offers session management for long-running tasks. Designed for developers who live in the terminal.
Both work with any OpenAI-compatible provider. Point the base URL at Standard Compute and get frontier-model compute with no usage limits from $39/mo flat — no per-token billing, no 429 rate limits.
Weighing the cost of running it? Cheapest API for OpenCode
OpenCode runs on Standard Compute
