GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at max
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
In a self-run comparison of GPT-6.1 Terra and Claude Opus 5.5 across three synthetic tests, Terra tied Opus on a browser-based release triage task at roughly one-sixth the estimated uncached token cost, and outscored it on a cell-tracking coding task.