OrcaRouter leaderboard: OpenAI sweeps top three, Astra ranks third

OrcaRouter 🐳 @OrcaRouterOriginally posted 2026.09.16

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OpenAI takes the top 3 positions on the OrcaRouter Model Leaderboard Three OpenAI models now occupy #1–#3, followed by two Anthropic models at #4–#5. #1 GPT-5.4 Pro — 82.3 #2 GPT-5.6 Luna — 78.4 #3 GPT-6 Astra — 74.0 #4 Claude Opus 5 — 73.6 #5 Claude Fable 5.1 — 73.1 Composite = 40% human preference + 30% independent benchmarks + 20% production evidence + 10% ecosystem adoption.

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