Claude Fable 5.2 (Low, Default Fallback) vs GPT-6 Astra (Medium)
Which is better for the money: Claude Fable 5.2 (Low, Default Fallback) by Anthropic or GPT-6 Astra (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-11-10.
Trade-off
Verdict
Depends on your budget
Claude Fable 5.2 (Low, Default Fallback) scores 2.3 points higher (53.9 vs 51.6) but costs 1.1× as much to run the benchmark ($2862 vs $2638; both flagship class). Pick Claude Fable 5.2 (Low, Default Fallback) when the extra intelligence is worth the premium, otherwise GPT-6 Astra (Medium).
| Metric | Claude Fable 5.2 (Low, Default Fallback) | GPT-6 Astra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.9 | 51.6 | −4.3% GPT-6 Astra (Medium) is 4.3% less intelligent |
| Total AA cost (lower is better) | $2,861.78 | $2,638.29 | −7.8% GPT-6 Astra (Medium) is 7.8% cheaper |
| End-to-end time (lower is better) | 22.57s | 19.14s | −15.2% GPT-6 Astra (Medium) is 15.2% faster |
| Price per 1M tokens (in / out) | $8.00 / $40.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (Medium) vs Claude Fable 5.2 (Low, Default Fallback): 4.3% less intelligence, 7.8% less cost to run the AA benchmark, and 15.2% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5.2 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.60 for $1124.
- GPT-6 Astra (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.60 for $1124.
Claude Fable 5.2 (Low, Default Fallback)GPT-6 Astra (Medium)Today's Pareto frontierEvery other model
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