Hands-on: Gemini Argon 4 flops at coding, fails edits on a 500-LOC file

ZealousidealTown1974 · reddit · 2026-10-14

A Reddit user tested Gemini Argon 4 High via OpenCode V2 and Antigravity with the 'Horse prompt': verdict — not worth the hype. On a real project it was unimpressive and repeatedly failed tool calls, botching multiple edits on a 500-LOC file even with Antigravity's native edit tooling (7 tests, 2 failing in the screenshot). Further testing planned on orchestration and delegated subagents.

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