---
title: "GLM-5.2 vs DeepSeek V4 Pro"
canonical: "https://router.xark.io/models/compare/glm-5-2-vs-deepseek-v4-pro"
description: "GLM-5.2 vs DeepSeek V4 Pro priced at 100M input and 20M output tokens a month, with both rate cards, the licences and which of the two is callable today."
section: "model-comparisons"
updated: "2026-09-02"
source: "https://router.xark.io/models/compare/glm-5-2-vs-deepseek-v4-pro.md"
---

# GLM-5.2 vs DeepSeek V4 Pro

DeepSeek V4 Pro costs less than GLM-5.2 at every mix of input and output — $0.28/M against $0.82/M on input and $0.55/M against $2.55/M on output — so at 100M input and 20M output tokens a month it comes to $39.00 against $133.00, a difference of $94.00, and what GLM-5.2 holds over it is context rather than price — 200K against 160K, 1.3× wider.

**Availability:** 7 of the 24 catalogued models are callable today. The rest are listed at their intended rate but no configured upstream serves them, so a request naming one returns `no available channel`. Every table below marks which is which.

## Cost at 100M input and 20M output tokens a month

| Model | Our cost | Official cost | Callable |
| --- | --- | --- | --- |
| GLM-5.2 | $133.00 | $228.00 | Yes |
| DeepSeek V4 Pro | $39.00 | $60.90 | Yes |

## Rates and specification

| Field | GLM-5.2 | DeepSeek V4 Pro |
| --- | --- | --- |
| Model id | `z-ai/glm-5.2` | `deepseek/deepseek-v4-pro` |
| Publisher | Z.ai | DeepSeek |
| Input | $0.82/M | $0.28/M |
| Output | $2.55/M | $0.55/M |
| Cached input | $0.16/M | $0.055/M |
| Capacity | 200K tokens | 160K tokens |
| Licence | MIT | MIT |
| Released | Jun 30, 2026 | May 21, 2026 |
| Callable today | Yes | Yes |

## Reasons to pick GLM-5.2

- It holds 200K in one request against 160K — 1.3× wider, which decides whether a long input is one call or a map-reduce.
- The catalogue lists it for general-purpose production workloads, structured output and function calling at scale and bilingual EN/ZH applications.

## Reasons to pick DeepSeek V4 Pro

- Input costs $0.28/M against GLM-5.2's $0.82/M, which decides the bill on input-heavy work — long documents in, short answers out.
- Output costs $0.55/M against GLM-5.2's $2.55/M, which is the whole bill on generation-heavy work where a short brief produces long copy.
- Cached input is $0.055/M against GLM-5.2's $0.16/M, and on an agent loop the repeated prefix is most of every request.
- The catalogue lists it for cost-sensitive batch processing at scale, math and reasoning-heavy evaluation pipelines and agent loops with large repeated system prompts.

## Questions

### Which is cheaper, GLM-5.2 or DeepSeek V4 Pro?

DeepSeek V4 Pro, at 100M input and 20M output tokens a month: $39.00 against $133.00, a difference of $94.00 — 71% less. That holds at any ratio of input to output on this pairing, because DeepSeek V4 Pro has the lower rate on every column, not just the one the headline quotes. What the arithmetic does not tell you is whether both models do your job to the same standard; that is a measurement on your own prompts, not a number we can publish.

### Can I call both GLM-5.2 and DeepSeek V4 Pro today?

Yes — both. Requests naming `z-ai/glm-5.2` or `deepseek/deepseek-v4-pro` reach a live upstream today and are billed at the rates above. 7 of the 24 models in this catalogue are callable right now; the rest are listed at their intended price and marked, so you find out here rather than from an error at call time.

### How much context does GLM-5.2 hold compared with DeepSeek V4 Pro?

GLM-5.2 takes 204,800 tokens (200K) in a single request against DeepSeek V4 Pro's 163,840 (160K) — 1.3× wider. The window is a cost decision before it is a capability one: an input that does not fit has to be split, summarised in pieces and summarised again, which bills the source text more than once. Below that line the wider window is capacity you are not using.

### What licences are GLM-5.2 and DeepSeek V4 Pro under?

Both are MIT — GLM-5.2 from Z.ai and DeepSeek V4 Pro from DeepSeek. Licence is therefore not a differentiator on this pairing, which is worth knowing before it becomes the question a legal review opens with. Read the text itself before shipping either; a licence name is a pointer to terms, not a summary of them.

### How do I switch between GLM-5.2 and DeepSeek V4 Pro?

Change the model id and nothing else. Both are served from `https://router.xark.io/api/v1` behind the same OpenAI-compatible contract — `z-ai/glm-5.2` and `deepseek/deepseek-v4-pro` — so the request shape, the streaming frames, the usage block and the error envelope are identical between them. Send an explicit id and no substitution happens underneath you, which is what makes running both and comparing the two on your own traffic a change of one string rather than a migration.

### How do these rates compare with the official ones?

Both rows are published side by side rather than as a single discount claim. GLM-5.2 is 42% below Z.ai's official rate and DeepSeek V4 Pro is 37% below DeepSeek's, which at 100M input and 20M output tokens a month is $133.00 against an official $228.00 for GLM-5.2, and $39.00 against $60.90 for DeepSeek V4 Pro. The claim on this site is only that our rate sits below the model publisher's own — not that no one else is cheaper. Where a third-party provider undercuts us on either model, that provider's rate is printed on that model's own page.

## Full model pages

- [GLM-5.2](https://router.xark.io/models/glm-5-2.md)
- [DeepSeek V4 Pro](https://router.xark.io/models/deepseek-v4-pro.md)