GLM-5.3 Flash costs 10x less than Claude Opus in image gen test

rohanpaul_ai · x · 2026-08-29

A test by AI/ML API compared GLM-5.3 Flash, Claude Opus 4.6, and Tencent Hy4 on generating 'the Backrooms with a monster'. The results showed a significant pricing difference: GLM-5.3 Flash at 1x, Hy4 at 4.3x, and Claude Opus at 9.7x for the same prompt. This highlights the growing importance of model routers over simply choosing the 'best' model.

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