# glm-5.2 — API, Pricing & Context Window | Vivgrid

> Source: https://vivgrid.com/docs/models/glm-5.2

glm-5.2 on Vivgrid: Zhipu AI's coding model with a 1M-token context window, function calling, and competitive pricing.

`glm-5.2` is Zhipu AI's latest coding and reasoning model, pairing reliable function calling with a major upgrade: a **1M-token context window**, up from 200K in `glm-5.1`. It's a strong, low-cost option for agentic coding workloads that need to reason over large codebases.

On Vivgrid, `glm-5.2` is reachable through the unified, OpenAI-compatible endpoint, so it integrates cleanly alongside models from OpenAI, Anthropic, Google, and DeepSeek under one API key.

## Specifications

| Field | Value |
| --- | --- |
| Provider | Zhipu AI |
| Model ID | `glm-5.2` |
| Best for | Coding |
| Available on | Vibe coding |
| Context window | 1,000,000 tokens |
| Max output | 128,000 tokens |
| Modalities | Text |
| Tool / function calling | Yes |
| Knowledge cutoff | 2026-06 |
| Acceleration | Global (centralized) |

## Pricing

Pricing in USD per 1M tokens.

| Input | Cached input | Output |
| --- | --- | --- |
| $1.20 | $0.30 | $4.20 |

### What one request costs

The rates above applied to a 20K-token prompt with a 2K-token reply — a typical single agent turn, small enough that every request is billed at the base rate.

| Request | Cost |
| --- | --- |
| Cold prompt, nothing cached | $0.0324 |
| Warm prompt, 90% of the input served from cache | $0.0162 |


## API surfaces

The Vivgrid Console catalogs `glm-5.2` on one surface, all behind the same API key. The endpoint shown is the one the Console previews for that surface.

| Surface | Primary endpoint | Use it for |
| --- | --- | --- |
| Vibe coding | `/chat/completions` | Coding CLIs and IDE agents that drive the model themselves — point the tool at Vivgrid and keep your own loop. |

## Quick start

Get an API key from the Vivgrid Console (https://console.vivgrid.com), then call `glm-5.2` directly.

```bash
curl https://api.vivgrid.com/v1/chat/completions \
  -H "Authorization: Bearer $VIVGRID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.2",
    "messages": [
      { "role": "user", "content": "Say hello in English, Chinese and Spanish." }
    ],
    "stream": true
  }'
```


## Ideal use cases

- Cost-effective coding agents and CLIs
- Whole-repository reasoning within a 1M-token context
- Tool-calling workflows on Chat Completions
- Teams diversifying beyond US-based providers

## Related models

- [gpt-6-astra](/docs/models/gpt-6-astra) — OpenAI's frontier gpt-6 coding model
- [glm-5.3](/docs/models/glm-5.3) — same base model and price, newer post-training
- [deepseek-v4-pro](/docs/models/deepseek-v4-pro) — flagship low-cost coding model