Claude Opus 5 (High) vs GPT-6.1 Terra (High)
Which is better for the money: Claude Opus 5 (High) by Anthropic or GPT-6.1 Terra (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
Claude Opus 5 (High) scores 4.2 points higher (48.1 vs 43.9) but costs 18× as much to run the benchmark ($4332 vs $239; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Opus 5 (High) when you need intelligence above 43.9, and GPT-6.1 Terra (High) when 43.9 is enough.
| Metric | Claude Opus 5 (High) | GPT-6.1 Terra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 48.1 | 43.9 | −8.7% GPT-6.1 Terra (High) is 8.7% less intelligent |
| Total AA cost (lower is better) | $4,331.68 | $238.53 | −94.5% GPT-6.1 Terra (High) is 94.5% cheaper |
| End-to-end time (lower is better) | 28.11s | 11.16s | −60.3% GPT-6.1 Terra (High) is 60.3% faster |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $1.00 / $5.00 | |
| Input modalities | Text, Image | Text, Image |
GPT-6.1 Terra (High) vs Claude Opus 5 (High): 8.7% less intelligence, 94.5% less cost to run the AA benchmark, and 60.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5 (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- GPT-6.1 Terra (High) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Opus 5 (High)GPT-6.1 Terra (High)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-high/gpt-6-1-terra-high · Markdown: /api/v1/compare/claude-opus-5-high/gpt-6-1-terra-high?format=md · llms.txt · agent skill