Model Details
Where is GLM 5.3 Flash a perfect fit?
- High-volume coding agents
- Autonomous software engineering
- Visual coding and UI development
- Browser and computer-use workflows
- Document and spreadsheet processing
- Financial research and analysis
- Multimodal research agents
- PPTX, PDF, DOCX and XLSX workflows
- Long-context analysis
- Cost-sensitive production agents
GLM-5.3-Flash uses 320B total parameters with only 18B activated, and its hybrid sparse/linear-attention architecture reduces attention computation by roughly 3× and KV-cache requirements by 4.4× versus GLM-5.3.
Z.ai reports a score of 57 on the Artificial Analysis Intelligence Index v4.1.1 at approximately $0.045 per task, positioning it strongly on the intelligence-to-cost frontier.
Quick Model Estimate
Your GLM 5.3 Flash Cost Estimate
💰 Total Cost
—
for 1000 input + 1000 output tokens
Cost Breakdown
Prices are watched for changes and checked against the provider's own page.
Pricing
|
Provider
↕
|
Modality
↕
|
Service Tier
↕
|
Input Price
(per 1M tokens) ↕ |
Output Price
(per 1M tokens) ↕ |
Cached Input
(per 1M tokens) ↕ |
Context Size
↕
|
View
|
|---|---|---|---|---|---|---|---|
 Perplexity | Text | Standard | $0.1500 | $0.5000 | $0.0300 | 1,000,000 tokens | → |
 Z.ai | Text | Standard | $0.1500 | $0.5000 | $0.0300 | 1,000,000 tokens | → |
Benchmarks
Scores from standardized evaluations by Artificial Analysis and Design Arena. Higher is better — the indices summarize overall ability, while the detailed scores break down performance on individual benchmarks.
Artificial Analysis
Higher is better · benchmarked by Artificial AnalysisGraduate-level questions in biology, chemistry & physics
Expert-level questions across many academic domains
Unpublished physics research reasoning problems
Long-context reasoning across large inputs
Research-level scientific coding tasks
Economically valuable, real-world knowledge work
Breadth of factual knowledge across domains
How reliably the model avoids fabricated answers
| Variant | GPQA Diamond | Humanity's Last Exam | AA-LCR | SciCode | CritPt | GDPval | Omniscience Accuracy | Omniscience Non-Hallucination |
|---|---|---|---|---|---|---|---|---|
| GLM 5.3 Flash | 91.2% | 39.9% | 80% | 51.6% | 15.4% | 57% | 27.5% | 72.4% |
| GLM-5.3-Flash | 91.2% | 39.9% | 80% | 51.6% | 15.4% | 57.1% | 27.5% | 72.4% |
Design Arena
Elo rating by arena & category| Variant | Arena | Category | Elo | Win % | Percentile | Avg time (ms) |
|---|---|---|---|---|---|---|
| notebook | models | 3d | 1,313 | 56.2% | 87 | 524,726 |
| notebook | models | asciiart | 1,271 | 55.2% | 87 | 427,804 |
| notebook | models | codecategories | 1,279 | 49.2% | 83 | 410,333 |
| notebook | models | dataviz | 1,260 | 50% | 77 | 401,568 |
| notebook | models | gamedev | 1,275 | 46.7% | 85 | 621,747 |
| notebook | models | svg | 1,280 | 56.4% | 87 | 211,865 |
| notebook | models | uicomponent | 1,308 | 54.1% | 89 | 324,575 |
| notebook | models | website | 1,270 | 48.4% | 82 | 346,563 |
Compare GLM 5.3 Flash with
Two models side by side: worked costs, every rate, and every benchmark figure both of them report.
Other Models in the GLM 5.3 Family
FAQs about GLM 5.3 Flash
How much does GLM 5.3 Flash cost per 1M tokens?
GLM 5.3 Flash costs $0.15 per million input tokens, and $0.50 per million output tokens.
What does a typical workload cost with GLM 5.3 Flash?
1,000 requests of 2,000 input and 500 output tokens each — 2,000,000 input and 500,000 output tokens in total — costs $0.55 with GLM 5.3 Flash at its lowest rates. Use the calculator on this page for your own volumes.
Which provider is cheapest for GLM 5.3 Flash?
Perplexity has the lowest input rate for GLM 5.3 Flash, at $0.15 per million tokens. Across all providers: Perplexity from $0.15 and Z.ai from $0.15 per million input tokens.
What is GLM 5.3 Flash's context window?
GLM 5.3 Flash has a context window of 1,000,000 tokens, and returns up to 128,000 tokens in a single response.
What input types does GLM 5.3 Flash support?
GLM 5.3 Flash accepts text, image, video and file input, and returns text.