GLM 5 Turbo
VerifiedGLM 5 Turbo handles massive text contexts with closed-source efficiency.
About GLM 5 Turbo
GLM 5 Turbo features a text-only modality and an unusually large context capacity. This architecture supports coherent processing across very long documents without truncation. Z.AI developed it as a non-open-weight system for controlled deployment.
Its strengths center on maintaining context over extended sequences while delivering turbo-level responsiveness. The model suits professional environments where data privacy and consistent long-form understanding are priorities.
Typical usage includes document summarization, multi-turn analysis, and content generation requiring full awareness of large input sets.
Capabilities
How GLM 5 Turbo compares
GLM 5 Turbo (striped bar) vs other language models on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · GLM 5 Turbo ranks #35 of 36
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long-document analysis
The 262144-token context window supports ingesting and reasoning over entire books, research papers, or legal contracts in a single pass.
Large codebase navigation
Developers can load multiple files or full repositories to receive accurate code explanations, refactoring suggestions, and bug detection.
Extended multi-turn conversations
Maintains coherence across very long dialogues, making it suitable for ongoing technical support, tutoring sessions, or iterative creative writing.
Strengths & limitations
Strengths
- +Very large context window support
- +Fast inference as Turbo variant
- +Strong general reasoning
- +Efficient text-only processing
Limitations
- –Text modality only
- –No native vision or multimodal input
- –Performance depends on prompt quality for edge cases
Pricing by provider
Live per-provider pricing & uptime, routed via OpenRouter. Prices are USD per 1M tokens.
| Provider | Input /1M | Output /1M | Context | Uptime |
|---|---|---|---|---|
| AtlasCloud(fp8) | $1.20 | $4.00 | 262K | 100.0% |
Cost calculator
Estimate what GLM 5 Turbo would cost for your usage.
Based on GLM 5 Turbo's $1.20/1M input · $4.00/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "z-ai/glm-5-turbo",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: z-ai/glm-5-turbo
Editor's verdict
GLM 5 Turbo is Z.AI's proprietary language models with a 262K-token context window.
At $4.00 per 1M output tokens, it is mid-priced for its class, served by 1 provider.
It is available through Z.AI's API and aggregators like OpenRouter.
Best suited to very large context window support and fast inference as turbo variant.
Frequently asked questions
The model supports a context length of 262144 tokens.
User reviews
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