GPT-5.6 Terra (Low) vs LongCat 2.0
Which is better for the money: GPT-5.6 Terra (Low) by OpenAI or LongCat 2.0 by LongCat? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick GPT-5.6 Terra (Low)
LongCat 2.0 vs GPT-5.6 Terra (Low): 30.5% less intelligence, 55.5% more cost to run the AA benchmark, and 564.4% slower end-to-end.
| Metric | GPT-5.6 Terra (Low) | LongCat 2.0 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 27.5 | 19.1 | −30.5% LongCat 2.0 is 30.5% less intelligent |
| Total AA cost (lower is better) | $350.36 | $544.74 | +55.5% LongCat 2.0 is 55.5% more expensive |
| End-to-end time (lower is better) | 5.67s | 37.67s | +564.4% LongCat 2.0 is 564.4% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.75 / $2.95 | |
| Input modalities | Text, Image | Text |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- LongCat 2.0 is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
GPT-5.6 Terra (Low)LongCat 2.0Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-terra-low/longcat-2-0 · Markdown: /api/v1/compare/gpt-5-6-terra-low/longcat-2-0?format=md · llms.txt · agent skill