Gemini 3.1 Pro vs GLM 5.2

Choose Gemini 3.1 Pro if you want huge-context and multimodal work, and Gemini CLI users. Choose GLM 5.2 if you want open-weight coding agents that want a long context.

In our editorial scoring, GLM 5.2 leads in 3 of five dimensions (agentic ability, speed and value for $), while Gemini 3.1 Pro leads in 2. On price, Gemini 3.1 Pro runs about $5.00 per 1M tokens (blended) and is proprietary; 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.