Question 1

What is GLM 5.2 Fast?

Accepted Answer

GLM 5.2 Fast is a model from Z.ai, released on Jul 23, 2026. GLM 5.2 Fast is available on the Respan AI Gateway for production LLM workloads. Supports tool use. Up to 1.0M context window.

Question 2

How much does GLM 5.2 Fast cost?

Accepted Answer

On the Respan gateway, input starts at $2.10 per 1M tokens on Baseten, and output starts at $6.60 per 1M tokens on Baseten, after gateway discounts. Averaged across 2 providers, it costs $2.35 per 1M input tokens and $7.70 per 1M output tokens.

Question 3

Which providers serve GLM 5.2 Fast on Respan?

Accepted Answer

2 providers serve GLM 5.2 Fast: Baseten and Inference.net.

Question 4

What is GLM 5.2 Fast's context window?

Accepted Answer

GLM 5.2 Fast accepts up to 1.0M tokens of context on its largest provider route.

Question 5

How do I use GLM 5.2 Fast with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "glm-5.2-fast". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is GLM 5.2 Fast?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was Baseten at 78 tokens per second, and the lowest response latency was 0.8 seconds on Baseten. Speed varies with request size and provider.

Provider	Context	Input	Output	Capabilities
Baseten`baseten/zai-org/GLM-5.2-Fast`	1.0M	$2.10/M	$6.60/M
Inference.net`inference_net/glm-5.2-fast`	1M	$2.60/M	$8.80/M

GLM 5.2 Fast

Providers

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Pricing

Cost by volume

Throughput and latency

Output speed

Response latency

Apps

GLM 5.2 Fast FAQ

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