Luna Beats DeepSeek in Performance, but Agentic Costs Remain High

teortaxesTex · x · 2026-07-31

The author points out that Luna significantly outperforms DeepSeek V4-Pro in raw capabilities. However, in agentic sessions, Luna is not cheaper on a token basis: cache reads remain 5.5x more expensive, with penalties for longer sequences and extra charges for cache writes. The author suggests DeepSeek V4 needs improvement.

Related event: GPT-5.6 Luna Price Cut Sparks Cost-Performance Revolution, Inference Costs Drop 13-Fold in 4 Months(8 posts)→

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