Yeah, I clicked expecting a review of GLM 5.3 Flash, but the article was more a retrospective about what he learned during his September challenge: "Only use GLM 5.3 Flash for one month"

He said his experiment was a failure because:

1. He accidentally spent 450M tokens vibe coding with the wrong model, instead of GLM 5.3 Flash.

2. When he used GLM 5.3 Flash, it was sometimes slow. So he switched to other models (Deepseek / Qwen) instead. His guess to why it was slow: GLM 5.3 Flash was so good that the providers were congested.

3. He still needed to use other models besides GLM 5.3 Flash, for R&D and benchmarking.

His takeaways from doing the experiment were:

1. Measure local usage more.

2. Experiment with agent orchestration, with bounded goals.

3. Don't count other models that are used for R&D.

4. Play with Jev.

5. Include experiments with flagship models to compare with cheap open models.

His conclusion about GLM 5.3 Flash: Probably viable for day to day work, but he'll have more thoughts next month.