Claude Opus 5.5 dominates benchmarks of rivals released three weeks ago
daniel_mac8 · x · 2026-09-23
danielmac8 reports Claude Opus 5.5 beats Fable 5.1 and Astra across many benchmarks — models that shipped just three weeks ago — underscoring the accelerating pace of frontier model releases.
Related event: Claude Opus 5.5 Launches to Top Rankings with Lower Price and Faster Speed(28 posts)→
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