---
title: "Z.ai: GLM 5.3 Flash — unrated, priced in this catalogue · Undominated.ai"
canonical: https://undominated.ai/models/z-ai__glm-5.3-flash/
description: "Z.ai: GLM 5.3 Flash: $0.075/M in, $0.250/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero."
---

# Z.ai: GLM 5.3 Flash — unrated, priced in this catalogue · Undominated.ai

> Z.ai: GLM 5.3 Flash: $0.075/M in, $0.250/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero.

MODEL PROOF

# GLM 5.3 Flash

Z.ai · 26 Aug 2026

 Balanced Summarise Chat Code gen Agentic

NOT INDEPENDENTLY RATED

## No independent LMArena score is published for this model.

 **$0.119** / 1M tokens Balanced · 3 tokens in per 1 out

 Independent LMArena score Not independently rated
 Context window 1.05M
 Maximum output 131.07K
 Input modalities text, image, video
 Output modalities text
 Published input price $0.075 / 1M tokens
 Published output price $0.250 / 1M tokens
 Pricing kind fixed

Evidence as of 28 Aug 2026

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MODEL MONUMENT

## Save or share this proof

Z.ai: GLM 5.3 Flash. Balanced workload. Not independently rated. Evidence as of 28 Aug 2026.

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### Every price dimension

| Input | $0.075 /M |
| --- | --- |
| Output | $0.250 /M |
| Cached input | $0.015 /M |

### Who sells it

The same weights, different shops. Cheapest is not like-for-like when serving precision differs.

Headline cheapest is a lower precision. Like-for-like at the best declared precision is $0.075/M from Z.AI.

| Seller | Input | Output | Precision | Uptime (1d) |
| --- | --- | --- | --- | --- |
| Seller Z.AI | Input $0.075 | Output $0.250 | Precision fp8 | Uptime (1d) 99.47% |
| Seller Novita | Input $0.075 | Output $0.250 | Precision fp8 | Uptime (1d) 99.54% |
| Seller GMICloud | Input $0.075 | Output $0.250 | Precision fp8 | Uptime (1d) 98.61% |
| Seller DeepInfra | Input $0.150 | Output $0.500 | Precision fp8 | Uptime (1d) 99.91% |
| Seller Io Net | Input $0.150 | Output $0.500 | Precision fp8 | Uptime (1d) 99.91% |
| Seller Cloudflare | Input $0.150 | Output $0.500 | Precision undeclared | Uptime (1d) 99.79% |

### Independent scores

No independent benchmark has measured this model. Unrated is not a score of zero.

### Capability

| Context window | 1.0M |
| --- | --- |
| Max output | 131K |
| Input modes | text, image, video |
| Tool use | yes |
| Reasoning | always on |

### Provenance

| Price source | openrouter.ai |
| --- | --- |
| Fetched | 2026-08-28 |
| Quality data | unrated |

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...

## Questions this page answers

### What beats GLM 5.3 Flash?

GLM 5.3 Flash has no independent quality score. Unrated is not a score of zero.

### Does GLM 5.3 Flash have an independent quality score?

GLM 5.3 Flash has no independent quality score in this catalogue. Unrated is not a score of zero.

### What does GLM 5.3 Flash cost?

$0.075/M in, $0.250/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.

### Does this page use Artificial Analysis scores for GLM 5.3 Flash?

No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.

[Check whether this is still the one to buy](/check/z-ai__glm-5.3-flash/) [See the Z.ai GLM family family](/families/glm/)

## Related

No independent quality score, so there is no dominator to name. Unrated is not a clean bill of health.

 - Same vendor [GLM 5.3](/models/z-ai__glm-5.3/)
- Z.ai models [Z.ai](/providers/#vendor-z-ai)
- Where this model appears [effort](/effort/)
- Same vendor [GLM 5.2](/models/z-ai__glm-5.2/)
- Where this model appears [spreads](/spreads/)
- Same vendor [GLM 5.1](/models/z-ai__glm-5.1/)