GLM 5.2 is now available on Serverless. Try it today.

Model Library
/Z.ai/GLM 5.2
model path:accounts/fireworks/models/glm-5p2

GLM-5.2 introduces a robust 1M-token context and advanced, multi-effort coding capabilities to significantly enhance performance on long-horizon tasks. Its new IndexShare architecture and improved MTP layer simultaneously boost efficiency by reducing per-token FLOPs and increasing speculative decoding lengths.

GLM 5.2 API Features

Serverless

Docs

GLM 5.2 is available via Fireworks' serverless API, where you pay per token. There are several ways to call the Fireworks API, including Fireworks' Python client, the REST API, or OpenAI's Python client.

On-demand Deployment

Docs

On-demand deployments allow you to use GLM 5.2 on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.

Available Serverless

Run queries immediately, pay only for usage

$1.40 / $0.26 / $4.40
Per 1M Tokens (input/cached input/output)

Metadata

State
Ready
Created on
6/16/2026
Kind
Base model
Provider
Z.ai
Hugging Face
zai-org/GLM-5.2

Specification

Calibrated
No
Mixture-of-Experts
Yes
Parameters
743B

Supported Functionality

Fine-tuning
Not supported
Serverless
Supported
Context Length
1040k tokens
Function Calling
Supported
Embeddings
Not supported
Rerankers
Not supported
Support image input
Not supported