Team ditches GPT-5.4 for GLM in production, sees faster, cheaper, more reliable results
ivan_bezdomny · x · 2026-10-02
Developer ivanbezdomny reports migrating a production system from GPT-5.4 (calling 5.5 and 5.6 less reliable) to GLM and GLM-flash plus Jev and a custom finetune — resulting in a faster, cheaper and much more reliable setup, with a writeup planned.
In a follow-up he notes more teams are moving production systems to open-weights models not because they're cheap or great, but because using OpenAI or Claude in production is painful, arguing both are all-in on coding rather than serving prod systems.
Related event: Devs Migrate Production From GPT-5.4 to GLM for Speed and Reliability(3 posts)→
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