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OpenClaw + GLM 5.3 Flash — Opus-Class Scores at Flash Cost

This story is from 2026-08-27. It is preserved in the archive; the latest stories are on the live feed.

For a week an anonymous model called ox-alpha sat at the top of OpenRouter and OpenCode with nobody knowing who made it. On 26 August 2026 Z.ai (Zhipu AI) revealed it as GLM 5.3 Flash and open-sourced the weights under MIT the same day. Here is what it actually is, what the benchmarks support, and…

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  1. 2026-08-27 14:14 · DEV Community — Machine Learning
    OpenClaw + GLM 5.3 Flash — Opus-Class Scores at Flash Cost

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