Claude Opus 5.5 (Max, Default Fallback) vs GPT-6 Astra (High)
Which is better for the money: Claude Opus 5.5 (Max, Default Fallback) by Anthropic or GPT-6 Astra (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Claude Opus 5.5 (Max, Default Fallback) scores 6.7 points higher (57.6 vs 50.9) but costs 3.0× as much to run the benchmark ($8708 vs $2925; both flagship class). Pick Claude Opus 5.5 (Max, Default Fallback) when the extra intelligence is worth the premium, otherwise GPT-6 Astra (High).
| Metric | Claude Opus 5.5 (Max, Default Fallback) | GPT-6 Astra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 57.6 | 50.9 | −11.6% GPT-6 Astra (High) is 11.6% less intelligent |
| Total AA cost (lower is better) | $8,708.20 | $2,925.01 | −66.4% GPT-6 Astra (High) is 66.4% cheaper |
| End-to-end time (lower is better) | 626.13s | 45.44s | −92.7% GPT-6 Astra (High) is 92.7% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (High) vs Claude Opus 5.5 (Max, Default Fallback): 11.6% less intelligence, 66.4% less cost to run the AA benchmark, and 92.7% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5.5 (Max, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Astra (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
Claude Opus 5.5 (Max, Default Fallback)GPT-6 Astra (High)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5/gpt-6-astra-high · Markdown: /api/v1/compare/claude-opus-5-5/gpt-6-astra-high?format=md · llms.txt · agent skill