GLM-5.3-Flash Pricing - Cost Calculator

GLM-5.3-Flash is Z.ai’s efficient multimodal frontier model for coding, autonomous agents, visual workflows, document processing, research, and professional automation.

GLM-5.3-Flash is a multimodal model from Z.ai, released 26 August 2026. It pairs a 1,000,000-token context window with up to 128,000 tokens of output, accepting text, image, video and file and returning text. Step-by-step reasoning is supported. It costs $0.15 per million input tokens through Perplexity.

Last updated Sep 15, 2026

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Model Details

Released
Aug 26, 2026
Context Length
1,000,000
Max Output
128,000
Modalities
Text Image Video File → Text
Capabilities
Tool use Structured outputs Prompt caching Code execution Computer use Open weights

Where is GLM-5.3-Flash a perfect fit?

GLM-5.3-Flash is Z.ai’s highly efficient open-weight multimodal model, combining frontier coding and agentic intelligence with native visual understanding, long context, and exceptionally low inference costs.
- 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

(USD 0.1500 per 1M tokens)
(USD 0.5000 per 1M tokens)

Your GLM-5.3-Flash Cost Estimate

💰 Total Cost

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for 1000 input + 1000 output tokens

📥 Input (1000 × $0.150000) —
📤 Output (1000 × $0.500000) —

Cost Breakdown

📥 Input 📤 Output

Prices updated daily from official provider data.

Pricing

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Perplexity LogoPerplexityTextStandard$0.1500$0.5000$0.03001,000,000 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 Analysis
Detailed scores
GLM-5.3-Flash
41.9
Intelligence Index
Overall intelligence across reasoning, knowledge & math evals
Better than 38% of 9 models
71.5
Coding Index
Coding ability across software-engineering evals
Better than 44% of 10 models
51.2
Agentic Index
Tool use & multi-step agent task performance
Better than 63% of 9 models
Reasoning
GPQA Diamond 91.2%

Graduate-level questions in biology, chemistry & physics

Humanity's Last Exam 39.9%

Expert-level questions across many academic domains

CritPt 15.4%

Unpublished physics research reasoning problems

AA-LCR 80%

Long-context reasoning across large inputs

Coding
SciCode 51.6%

Research-level scientific coding tasks

Knowledge
GDPval 57.7%

Economically valuable, real-world knowledge work

Omniscience Accuracy 27.5%

Breadth of factual knowledge across domains

Omniscience Non-Hallucination 72.4%

How reliably the model avoids fabricated answers

Design Arena

Elo rating by arena & category
Variant Arena Category Elo Win % Percentile Avg time (ms)
notebook models 3d 1,355 60% 94 449,565
notebook models asciiart 1,285 55.7% 87 408,625
notebook models codecategories 1,298 49.8% 88 361,371
notebook models dataviz 1,275 50.7% 84 338,814
notebook models gamedev 1,308 47.4% 90 578,721
notebook models svg 1,312 57.1% 93 188,916
notebook models uicomponent 1,342 56.6% 95 281,303
notebook models website 1,285 48.5% 86 313,229

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.

Where can I use GLM-5.3-Flash?

GLM-5.3-Flash is available through Perplexity, 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.