GPT-6.1 Terra vs Opus 5.5 vs Gemini 4 Argon: supercar prompt comparison

The same supercar prompt run through each lab's own agent: Gemini 4 Argon took 8m41s and $0.48, succeeding on the second try.

AgentSky

@agentsky_devArchived 9 hours agoOriginally posted 2026.10.27

AgentSky @agentsky_devOriginally posted 2026.10.27

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GPT-6.1 Terra, hours old, vs Opus 5.5 vs Gemini 4 Argon. Same supercar prompt, each lab's own agent. ⚡ Codex (Terra): 3 min 27 s · $0.12 Claude Code (Opus 5.5): 8 min 21 s · $1.31 pi (Argon): 8 min 41 s · $0.48, second try Which car would you drive? @OpenAI

x.com/agentsky_dev/status/2114914007643746453Archived 2026.10.28 10:04

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