MODEL PROOF
GLM 5.3 Flash
NOT INDEPENDENTLY RATED
No independent LMArena score is published for this model.
- 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
MODEL MONUMENT
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Z.ai: GLM 5.3 Flash. Balanced workload. Not independently rated. Evidence as of 28 Aug 2026.
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) |
|---|---|---|---|---|
| Z.AI | $0.075 | $0.250 | fp8 | 99.47% |
| Novita | $0.075 | $0.250 | fp8 | 99.54% |
| GMICloud | $0.075 | $0.250 | fp8 | 98.61% |
| DeepInfra | $0.150 | $0.500 | fp8 | 99.91% |
| Io Net | $0.150 | $0.500 | fp8 | 99.91% |
| Cloudflare | $0.150 | $0.500 | undeclared | 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 See the Z.ai GLM family family