Video by AK (@akartit) · originally posted on XView original post on X
OpenCode (Gemini 4 Argon) vs Claude Code (Claude Opus 5.5) vs OpenAI Codex (GPT-6 Astra)
3D Lamborghini from code alone
AK@akartitHarness comparison1 likes125 views
Three coding agents build a 3D Lamborghini from the same prompt, all in code with no 3D files: Gemini 4 Argon in OpenCode, Claude Opus 5.5 in Claude Code and GPT-6 Astra in Codex.
Each side pairs a coding harness with its own model, so harness and model differences are mixed. More Claude Code vs OpenAI Codex. More Claude Code vs OpenCode. All harness comparisons.
Harnesses and models
| Harness | Model | Notes |
|---|---|---|
| OpenCode | Gemini 4 ArgonGoogle | 1 in the video |
| Claude Code | Claude Opus 5.5Anthropic | 2 in the video |
| OpenAI Codex | GPT-6 AstraOpenAI | 3 in the video |
Details
| Kind | Side-by-side (same post, same prompt) |
|---|---|
| Task | 3D Lamborghini from code alone |
| Category | 3D & Shaders |
| Mode | Not stated |
| Posted | |
| Video length | 22 s |
| Likes / views | 1 / 125 · as of Oct 18, 2026 |
| Bookmarks | 0 |
| Sponsored | No |
| Original post | x.com/akartit/status/2110131735757508805 |
Related
Compare all 3 modelsClaude Opus 5.5 vs Gemini 4 ArgonClaude Opus 5.5 vs GPT-6 AstraGemini 4 Argon vs GPT-6 Astra
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