Head-to-head
GLM-5.3 vs GLM-5.3-Flash
A 1.7-point composite gap — but the real story is the dimension mix. Same weights, unpacked: who leads where, and whether the premium is justified.
The short answer
The composites differ by 1.7 points, and their strengths do not overlap.
Stronger overall: GLM-5.3. If you only run one workload, read the dimension table instead.
Overlaid radar
Same weights, same scale; overlap means parity
- GLM-5.395.4
- GLM-5.3-Flash93.7
Dimension deltas
A on the left, B on the right; 100 max per row
GLM-5.3 leads 7, GLM-5.3-Flash leads 1.
Spec sheet
Hard specs in one table
| Item | GLM-5.3 | GLM-5.3-Flash |
|---|---|---|
| Composite | 95.4 | 93.7 |
| Tier | S+ | S |
| Visual perception & grounding | 97WIN | 95 |
| Document parsing & Chinese OCR | 97WIN | 96 |
| Chart & document reasoning | 96WIN | 93 |
| Video & long-horizon reasoning | 93WIN | 90 |
| GUI agents & tool use | 95WIN | 94 |
| Generation & editing | 88WIN | 86 |
| Chinese context & culture | 96WIN | 94 |
| Ecosystem, cost & availability | 97 | 98WIN |
| Output price | ¥9 / M | ¥3 / M |
| Context | 400K | 200K |
| Parameters | Undisclosed (MoE, full Ascend stack) | Undisclosed (distilled lightweight) |
| Licence | Commercial + on-prem licence (Ascend images included) | Commercial + on-prem licence (Ascend images included) |
| Native multimodal | Yes | Yes |
| Evidence grade | B | B |
How to choose
Choose GLM-5.3 if…
- Domestic-chip and public-sector on-prem projects
- Complex agent workflows and tool orchestration
- Chinese official documents, policy and research reports
- You cannot accept its limitation: Grade B: two weeks old, with the video-93 and document-97 gains supported only by vendor figures so far.
How to choose
Choose GLM-5.3-Flash if…
- Domestic-chip projects on a tight budget
- Document batches and receipt extraction
- Lightweight agents and tool orchestration
- You cannot accept its limitation: Video 90 and generation 86: neither long-video QA nor creative generation is its scenario.
Scenario check
Five scenarios, who holds up
| Scenario | GLM-5.3 | GLM-5.3-Flash | Better |
|---|---|---|---|
| Chinese receipt OCR | 96 | 95 | GLM-5.3 |
| Chart data extraction | 95 | 92 | GLM-5.3 |
| 30-min video QA | 92 | 88 | GLM-5.3 |
| Mobile GUI control | 95 | 93 | GLM-5.3 |
| Chinese cultural context | 96 | 94 | GLM-5.3 |
Comparison FAQ
GLM-5.3 vs GLM-5.3-Flash: which is stronger?
Composite: GLM-5.3 95.4, GLM-5.3-Flash 93.7. GLM-5.3 leads on Visual perception & grounding, Document parsing & Chinese OCR, Chart & document reasoning, Video & long-horizon reasoning, GUI agents & tool use, Generation & editing, Chinese context & culture; GLM-5.3-Flash leads on Ecosystem, cost & availability. The stronger overall is GLM-5.3.
How much more expensive is GLM-5.3 than GLM-5.3-Flash?
GLM-5.3 is ¥9/1M output tokens; GLM-5.3-Flash is ¥3/1M. On output price, GLM-5.3 is pricier; real cost also depends on image tokens and input share.
Can GLM-5.3-Flash replace GLM-5.3?
It depends on your primary workload. If it sits in GLM-5.3-Flash’s strengths (Domestic-chip projects on a tight budget, Document batches and receipt extraction, Lightweight agents and tool orchestration), yes. If you need Domestic-chip and public-sector on-prem projects, switching will cost quality.
Personal ranking · Not an official score
Every ranking, score and comparison on this page is an independent personal ranking, not an official score, and represents no vendor, institution or regulator. Scores are a subjective mapping of public evidence under our own weights — change the weights and the order changes. Disagree, or spotted a factual error? Contact the site owner: jizhi2024@foxmail.com — we check each report and log corrections in the changelog.