Claude Opus 5 (Low) vs GPT-6 Astra (High)
Which is better for the money: Claude Opus 5 (Low) by Anthropic or GPT-6 Astra (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (High) scores 11.5 points higher (50.9 vs 39.4) but costs 1.9× as much to run the benchmark ($2925 vs $1561; flagship vs premium cost classes). Pick GPT-6 Astra (High) when the extra intelligence is worth the premium, otherwise Claude Opus 5 (Low).
| Metric | Claude Opus 5 (Low) | GPT-6 Astra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.4 | 50.9 | +29.2% GPT-6 Astra (High) is 29.2% more intelligent |
| Total AA cost (lower is better) | $1,560.91 | $2,925.01 | +87.4% GPT-6 Astra (High) is 87.4% more expensive |
| End-to-end time (lower is better) | 11.28s | 70.71s | +526.9% GPT-6 Astra (High) is 526.9% slower |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (High) vs Claude Opus 5 (Low): 29.2% more intelligence, 87.4% more cost to run the AA benchmark, and 526.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- 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 (Low)GPT-6 Astra (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-low/gpt-6-astra-high · Markdown: /api/v1/compare/claude-opus-5-low/gpt-6-astra-high?format=md · llms.txt · agent skill