Agnes 2.5 Pro Beta Joins Frontier Tier with Major Agentic Gains, Higher Cost

ArtificialAnlys · x · 2026-08-28

Singapore-based lab Agnes AI released Agnes 2.5 Pro Beta, scoring 49 on the Artificial Analysis Intelligence Index—a 9-point jump from the Alpha version. This places it in the frontier-adjacent tier, just behind Gemini 3.5 Flash and GPT-5.6 Luna, and ahead of MiniMax-M3.

The primary driver is a leap in agentic capabilities: the Agentic Index rose from 25 to 44. The τ³-Banking metric nearly tripled, and GDPval-AA v2 Elo score increased significantly against a human baseline. Frontier reasoning benchmarks saw modest gains, with Humanity's Last Exam rising from 34% to 38%.

The model significantly reduced hallucination rates (from 88% to 33%) by adopting a more conservative abstention strategy, attempting only 45% of questions compared to the Alpha's 94%. However, this comes at a cost: output token usage doubled to 50k per task. The model features a 1M token context window, supports text/image input, and is priced at $0.10/$0.30 per 1M input/output tokens.

Related event: Agnes 2.5 Pro Beta Jumps in Rankings at Doubled Token Cost(4 posts)→

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