Anthropic’s Claude Fable 5.1, released September 1, anchors the 98.7% market-implied probability by posting the highest scores across leading benchmarks such as BenchAlign v5 (84.6) and Vals Index, outperforming OpenAI’s GPT-6 Astra in coding, agentic workflows, and knowledge-work tasks. Traders appear to view the model’s verified gains in SWE-bench Pro, Terminal-Bench, and multi-step reasoning as decisive through month-end, especially given Anthropic’s consistent frontier positioning since Opus 5 shipped in July. A credible challenge would require another lab to ship and independently validate a clearly superior large language model within the remaining days, an outcome that historical release timelines and current benchmark gaps make improbable.
Tóm tắt AI thử nghiệm tham chiếu dữ liệu Polymarket. Đây không phải tư vấn giao dịch và không ảnh hưởng đến cách thị trường này được giải quyết. · Cập nhậtAnthropic secures top spot on Arena Text Arena Overall leaderboard at September 30 snapshot
Anthropic's Claude Fable 5.1 and related models held the highest rank on the Arena Text Arena Overall leaderboard at the September 30, 2026, 12:00 PM ET snapshot, confirming Anthropic as the company with the best AI model at the end of September.
Anthropic's market price peaks at 98% ahead of September 30 leaderboard check
Anthropic rises to 98%1%
Anthropic's market price reached a high of 98% on September 20, 2026, reflecting strong market consensus that Anthropic would maintain the top position on the Arena.ai Text Arena overall leaderboard at the end of September.






















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