Claude Opus 4.8 (Max) vs GPT-6.1 Terra (Xhigh)
Which is better for the money: Claude Opus 4.8 (Max) by Anthropic or GPT-6.1 Terra (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Xhigh)
GPT-6.1 Terra (Xhigh) vs Claude Opus 4.8 (Max): 8.6% more intelligence, 94.7% less cost to run the AA benchmark, and 62.9% faster end-to-end.
| Metric | Claude Opus 4.8 (Max) | GPT-6.1 Terra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.8 | 45.4 | +8.6% GPT-6.1 Terra (Xhigh) is 8.6% more intelligent |
| Total AA cost (lower is better) | $6,873.86 | $364.95 | −94.7% GPT-6.1 Terra (Xhigh) is 94.7% cheaper |
| End-to-end time (lower is better) | 50.72s | 18.82s | −62.9% GPT-6.1 Terra (Xhigh) is 62.9% faster |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $1.00 / $5.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Opus 4.8 (Max) 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 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Claude Opus 4.8 (Max)GPT-6.1 Terra (Xhigh)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-4-8/gpt-6-1-terra-xhigh · Markdown: /api/v1/compare/claude-opus-4-8/gpt-6-1-terra-xhigh?format=md · llms.txt · agent skill