GLM 5.2 Fast via Wafer is now available on AI Gateway.

Based on our own benchmarking across small-context, large-context, and tool-call scenarios, Wafer delivers a 2x higher throughput than other providers serving GLM-5.2 on serverless, leading on decode and end-to-end speed for sustained generation in the small- and large-context cases.

In our testing, GLM 5.2 Fast on Wafer measured:

  • Small context: 170+ tok/s

  • Large context: 200+ tok/s

To use GLM 5.2 Fast, set model to zai/glm-5.2-fast in the AI SDK:

import { streamText } from 'ai';

const result = streamText({

model: 'zai/glm-5.2-fast',

prompt: 'Add error recovery to the data ingestion pipeline.',

});

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, Zero Data Retention support, budgets for API keys, and more.

AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.

Try GLM 5.2 Fast in the model playground.

AI Gateway: Track top AI models by usage

The AI Gateway model leaderboard tracks the most popular models over time, ranking them by the total volume of tokens processed across all Gateway traffic.

View the leaderboard