# MiniMax M3.1 Flash Tops Agent Benchmarks, Hides the Cost

> Source: <https://byteiota.com/minimax-m3-1-flash-tops-agent-benchmarks-hides-the-cost/>
> Published: 2026-10-19 22:08:08+00:00

MiniMax launched M3.1 Flash today — a 428-billion-parameter mixture-of-experts model that beats Claude Opus 5 and GPT-5.6 Sol on enterprise automation benchmarks at $0.15 per million input tokens. The headline is accurate. What MiniMax doesn’t put in the headline: a 93% hallucination rate on independent reliability testing. Before you start migrating agentic pipelines, you need both numbers. What MiniMax Is Claiming On AutomationBench-AA — a benchmark for complex enterprise agent workflows — M3.1 Flash tops all comers, leaving Claude Opus 5 at 50.3 and GPT-5.6 Sol at 45.8 behind. It scores 73.7% on DeepSWE v1.1 (software engineering), 82% on CyberGym […]

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