DeepSeek V4 Flash vs GLM 5.2

Choose DeepSeek V4 Flash if you want cheap, high-volume open-weight agent steps. Choose GLM 5.2 if you want open-weight coding agents that want a long context.

In our editorial scoring, DeepSeek V4 Flash leads in 3 of five dimensions (speed, value for $ and reliability), while GLM 5.2 leads in 2. On price, DeepSeek V4 Flash runs about $0.12 per 1M tokens (blended) and is open-weight; GLM 5.2 is about $1.61 and open-weight.

The model is half the story — the agent is the other half

The model picks the moves; the agent runs the loop, the tools, and the guardrails. Once you've chosen a model, see which agent gets the most out of it.