Claude Sonnet 5 (High) vs GPT-6 Astra (Xhigh)
Which is better for the money: Claude Sonnet 5 (High) by Anthropic or GPT-6 Astra (Xhigh) 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 (Xhigh) scores 20.7 points higher (52.4 vs 31.7) but costs 1.8× as much to run the benchmark ($3803 vs $2086; both flagship class). Pick GPT-6 Astra (Xhigh) when the extra intelligence is worth the premium, otherwise Claude Sonnet 5 (High).
| Metric | Claude Sonnet 5 (High) | GPT-6 Astra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 31.7 | 52.4 | +65.3% GPT-6 Astra (Xhigh) is 65.3% more intelligent |
| Total AA cost (lower is better) | $2,086.04 | $3,802.98 | +82.3% GPT-6 Astra (Xhigh) is 82.3% more expensive |
| End-to-end time (lower is better) | 21.74s | 176.59s | +712.3% GPT-6 Astra (Xhigh) is 712.3% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (Xhigh) vs Claude Sonnet 5 (High): 65.3% more intelligence, 82.3% more cost to run the AA benchmark, and 712.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-6 Astra (Xhigh) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Claude Sonnet 5 (High)GPT-6 Astra (Xhigh)Today's Pareto frontierEvery other model
Matchup
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