# GLM-5-Turbo

> Z.ai's proprietary, API-only GLM-5 variant tuned for fast, high-throughput agent workflows.

- Maker: Z.ai (Zhipu / GLM)
- Line: GLM Turbo
- Canonical page: https://ai-tldr.dev/models/glm-5-turbo/
- Updated: 2026-06-18

## In short

GLM-5-Turbo is a large language model from Z.ai (Zhipu / GLM), released on March 15, 2026 as part of the GLM Turbo line. Unlike the open-weight GLM-5 flagship, GLM-5-Turbo is a proprietary, closed-source companion model that is only available through Z.ai's hosted API and partner platforms — there is no weights download. It has a 262K-token context window and costs $1.20 per million input tokens and $4.00 per million output tokens.

## Facts

| Fact | Value | Source |
| --- | --- | --- |
| Context window | 262K (max output 128K) | [1] |
| Input price | $1.20 / 1M tokens | [2] |
| Output price | $4.00 / 1M tokens | [2] |
| Licence | Proprietary · API only | [1] |
| Released | 15 March 2026 | [3] |
| Parameters | ~744B total / ~40B active (MoE, shared GLM-5 base) | [1] |

## Sources

1. [Z.ai Developer Docs — release notes](https://docs.z.ai/release-notes/new-released)
2. [OpenRouter — GLM-5-Turbo API & pricing](https://openrouter.ai/z-ai/glm-5-turbo)
3. [Z.ai — official site](https://z.ai)

## Overview

GLM-5-Turbo is a large language model from Z.ai (Zhipu / GLM), released on March 15, 2026 as part of the GLM Turbo line. Unlike the open-weight GLM-5 flagship, GLM-5-Turbo is a proprietary, closed-source companion model that is only available through Z.ai's hosted API and partner platforms — there is no weights download.

GLM-5-Turbo is a reasoning model that uses extended chain-of-thought before answering, and it is tuned specifically for high-throughput agentic workloads. Z.ai's release notes describe it as focused on stability and efficiency in long-chain agent tasks: stronger tool and skills integration, better decomposition of complex instructions, and more consistent execution across multi-step, multi-agent workflows.

It serves text in and text out (it is not multimodal), accepts a long context window of up to 262,144 tokens, and can return up to 131,072 tokens in a single response. On the Artificial Analysis Intelligence Index it scores 38, placing GLM-5-Turbo among the stronger models tracked there at the time of release.

## Benchmarks

- Artificial Analysis Intelligence Index: 38% ([source](https://artificialanalysis.ai/models/glm-5-turbo))

## Pricing

- Input: $1.20 / 1M tokens per 1M tokens
- Output: $4.00 / 1M tokens per 1M tokens

Source: https://openrouter.ai/z-ai/glm-5-turbo

## Strengths

- Tuned for high-throughput, long-chain agent tasks with improved stability over many steps
- Strong tool and skills integration plus reliable decomposition of complex, multi-step instructions
- Long 262K-token context window with up to 128K-token outputs for large agent workloads
- Built on the capable GLM-5 MoE base (~744B total / ~40B active params)
- Competitive Artificial Analysis Intelligence Index score (38) for its price tier

## Best for

- Autonomous and multi-agent systems that run long tool-calling chains
- Agentic coding and engineering assistants that decompose multi-step tasks
- High-volume API workloads where throughput and stability matter
- Long-document and long-context reasoning over large inputs
- Tool-augmented assistants that browse, call functions, and orchestrate skills

## How to access

- [Z.ai](https://docs.z.ai/guides/overview/pricing) — model id `glm-5-turbo`
- [OpenRouter](https://openrouter.ai/z-ai/glm-5-turbo) — model id `z-ai/glm-5-turbo`

## GLM Turbo versions

- [GLM-5V-Turbo](https://ai-tldr.dev/models/glm-5v-turbo/) (1 April 2026)
- GLM-5-Turbo (15 March 2026) — this page

## FAQ

### Is GLM-5-Turbo open source or open weights?

No. Unlike the GLM-5 flagship, which Z.ai released with open weights, GLM-5-Turbo is a proprietary, closed-source companion model. It is available only through Z.ai's hosted API and partner platforms such as OpenRouter — there is no weights download.

### What is GLM-5-Turbo best at?

It is optimised for high-throughput agentic workloads: long tool-calling chains, multi-step task decomposition, and multi-agent coordination. Z.ai positions it for fast inference and stability across extended agent runs rather than as a maximal-quality model.

### What is GLM-5-Turbo's context window and pricing?

GLM-5-Turbo supports up to a 262K-token context window and up to 128K tokens of output. On OpenRouter it is priced at about $1.20 per million input tokens and $4.00 per million output tokens.

### Is GLM-5-Turbo multimodal?

No. GLM-5-Turbo is text-in, text-out only. For vision tasks, Z.ai offers a separate GLM-5V-Turbo multimodal variant.

## Links

- [Z.ai — official site](https://z.ai)
- [Z.ai Developer Docs — release notes](https://docs.z.ai/release-notes/new-released)
- [Z.ai Developer Docs — pricing](https://docs.z.ai/guides/overview/pricing)
- [OpenRouter — GLM-5-Turbo API & pricing](https://openrouter.ai/z-ai/glm-5-turbo)
- [Artificial Analysis — GLM-5-Turbo analysis](https://artificialanalysis.ai/models/glm-5-turbo)

Source: AI/TLDR LLM registry, https://ai-tldr.dev/models/glm-5-turbo/