Devs Migrate Production From GPT-5.4 to GLM for Speed and Reliability

Developer ivanbezdomny migrated a production system from GPT-5.4 to GLM and GLM-flash plus custom fine-tuned models, finding it faster, cheaper and more reliable, and notes a broader shift to open-weight models driven by poor production experiences with OpenAI and Claude.

2026-10-02 ~ 2026-10-02 · 3 related posts

• More production systems are moving to open-weights models because using OpenAI or Claude in prod sucks — ivan_bezdomny · 2026-10-02
• Team ditches GPT-5.4 for GLM in production, sees faster, cheaper, more reliable results — ivan_bezdomny · 2026-10-02

1 near-duplicate retellings: ivan_bezdomny