Claude Fable 5.2 (Low, Default Fallback) vs GPT-6 Astra (High)
Which is better for the money: Claude Fable 5.2 (Low, 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 2026-11-10.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (High) scores 0.9 points higher (54.8 vs 53.9) but costs 1.1× as much to run the benchmark ($3204 vs $2862; both flagship class). Pick GPT-6 Astra (High) when the extra intelligence is worth the premium, otherwise Claude Fable 5.2 (Low, Default Fallback).
| Metric | Claude Fable 5.2 (Low, Default Fallback) | GPT-6 Astra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.9 | 54.8 | +1.7% GPT-6 Astra (High) is 1.7% more intelligent |
| Total AA cost (lower is better) | $2,861.78 | $3,204.00 | +12.0% GPT-6 Astra (High) is 12.0% more expensive |
| End-to-end time (lower is better) | 22.57s | 144.47s | +540.1% GPT-6 Astra (High) is 540.1% slower |
| Price per 1M tokens (in / out) | $8.00 / $40.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (High) vs Claude Fable 5.2 (Low, Default Fallback): 1.7% more intelligence, 12.0% more cost to run the AA benchmark, and 540.1% slower 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 (High) is on today's frontier: nothing is both smarter and cheaper.
Claude Fable 5.2 (Low, Default Fallback)GPT-6 Astra (High)Today's Pareto frontierEvery other model
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