z-ai
Z.ai: GLM 5.3 Flash (batch)
The Z.ai: GLM 5.3 Flash is a batch AI model that can process text, images, and video input modalities up to a context length of 1048575 tokens. It supports tools and reasoning capabilities, but does not produce structured output. For those looking for an AI model with robust performance at a moderate price point, the Z.ai: GLM 5.3 Flash may be worth considering. With a blended benchmark score of 96.7 across three independent benchmarks, it demonstrates strong overall ability. Its pricing structure, $0.15 per million input tokens and $0.5 per million output tokens, is competitive in its class.
Quality Score
100/100
price + capability + benchmarks
Input Price
$0.15
per 1M tokens · checked 2026-09-04
Output Price
$0.50
per 1M tokens · checked 2026-09-04
Context Window
1,048,575
tokens
Benchmark results
Independent, published benchmarks. Blended score 96.7 across 3 benchmarks, last refreshed 2026-09-04. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 94.8 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 96.0 |
- Model ID
- z-ai/glm-5.3-flash:batch
- Vendor
- z-ai
- Released
- August 2026
- Tokenizer
- Other
- Input Modalities
- text, image, video
- Output Modalities
- text
- Max Output
- 943,717 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.15/M input and $0.50/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.10 |
| A month of a busy support chatbot | 5M in / 2M out | $1.75 |
Strong choice for
Code
Regex Writing
Crafting regular expressions that actually match what you intend.
Data
JSON Extraction
Pulling structured fields out of unstructured text.
Data
Bulk Data Labeling
Cheaply tagging thousands of items with consistent labels.
Writing
Short-Form Summarization
TL;DRs of articles and emails at scale.
Writing
Email Drafting
Cold emails, replies, and outreach at the right tone.
Writing
Language Translation
High-quality multilingual translation.
Category rankings
Where Z.ai: GLM 5.3 Flash (batch) places across the 76 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #2 | JSON ExtractionData · of 25 ranked | 149 |
| #2 | Bulk Data LabelingData · of 25 ranked | 135 |
| #2 | Short-Form SummarizationWriting · of 25 ranked | 133 |
| #2 | Email DraftingWriting · of 25 ranked | 129 |
| #2 | Language LearningEducation · of 25 ranked | 129 |
| #2 | Customer SupportBusiness · of 25 ranked | 136 |
| #2 | Chat CompanionPersonal · of 25 ranked | 133 |
| #2 | Trivia & General KnowledgePersonal · of 25 ranked | 123 |
| #2 | Dataset AnnotationResearch · of 25 ranked | 145 |
| #4 | Sales / Cold EmailBusiness · of 25 ranked | 125 |
| #4 | Job Application DraftingBusiness · of 25 ranked | 125 |
| #4 | Image CaptioningVision · of 25 ranked | 121 |
| #4 | Journaling HelperPersonal · of 25 ranked | 125 |
| #4 | Recipe GenerationPersonal · of 25 ranked | 125 |
| #5 | Regex WritingCode · of 25 ranked | 139 |
| #5 | Language TranslationWriting · of 25 ranked | 139 |
| #5 | Resume WritingBusiness · of 25 ranked | 119 |
| #5 | SOP / Process DocsBusiness · of 25 ranked | 139 |
| #5 | Tutoring for KidsPersonal · of 25 ranked | 139 |
| #7 | Code CompletionCode · of 25 ranked | 133 |
| #7 | Video Auto-TaggingVideo · of 25 ranked | 123 |
| #8 | Video SummarizationVideo · of 25 ranked | 162 |
| #9 | Marketing CopyWriting · of 25 ranked | 133 |
| #9 | Standardized Test PrepEducation · of 25 ranked | 133 |
| #9 | Function / Tool CallingAgents · of 25 ranked | 158 |
| #11 | SQL GenerationCode · of 25 ranked | 175 |
| #12 | Browser AutomationAgents · of 25 ranked | 177 |
| #13 | Code DocumentationCode · of 25 ranked | 145 |
| #13 | Blog Post WritingWriting · of 25 ranked | 143 |
| #13 | Trip PlanningPersonal · of 25 ranked | 143 |
| #14 | Diagram ExtractionVision · of 25 ranked | 151 |
| #15 | Data AnalysisData · of 25 ranked | 176 |
| #15 | CSV / Spreadsheet CleanupData · of 25 ranked | 155 |
| #15 | Meeting NotesBusiness · of 25 ranked | 153 |
| #16 | Frontend Component DesignCode · of 25 ranked | 149 |
| #16 | Social Media PostsWriting · of 25 ranked | 119 |
| #16 | Voice Assistant BackendVoice · of 25 ranked | 123 |
| #16 | Fitness CoachingPersonal · of 25 ranked | 137 |
| #17 | OCR / Document ParsingData · of 25 ranked | 147 |
| #17 | Table Extraction from PDFsData · of 25 ranked | 147 |
| #17 | Financial AnalysisProfessional · of 25 ranked | 163 |
| #17 | Character RoleplayPersonal · of 25 ranked | 153 |
| #18 | Math TutoringEducation · of 25 ranked | 150 |
| #18 | Screenshot DebuggingVision · of 25 ranked | 145 |
| #18 | Chart & Graph ReadingVision · of 25 ranked | 155 |
| #18 | Experiment DesignResearch · of 25 ranked | 160 |
| #19 | Unit Test GenerationCode · of 25 ranked | 157 |
| #19 | CI/CD PipelinesCode · of 25 ranked | 147 |
| #19 | Long-Document SummarizationWriting · of 25 ranked | 162 |
| #20 | Bug FixingCode · of 25 ranked | 186 |
| #20 | Physics TutoringEducation · of 25 ranked | 150 |
| #20 | Agent WorkflowsAgents · of 25 ranked | 198 |
| #20 | Coding AgentsAgents · of 25 ranked | 198 |
| #20 | Scientific CodingResearch · of 25 ranked | 186 |
| #24 | ETL ScriptingData · of 25 ranked | 157 |
| #24 | Medical Note SummarizationProfessional · of 25 ranked | 157 |
| #24 | History TutoringEducation · of 25 ranked | 147 |
| #25 | Code ReviewCode · of 25 ranked | 170 |
| #25 | Code RefactoringCode · of 25 ranked | 166 |
| #25 | Creative WritingWriting · of 25 ranked | 160 |
| #25 | Screenwriting & DialogWriting · of 25 ranked | 160 |
| #25 | Transcript CleanupWriting · of 25 ranked | 141 |
| #25 | Academic WritingWriting · of 25 ranked | 160 |
| #25 | Legal DraftingProfessional · of 25 ranked | 160 |
| #25 | Legal ResearchProfessional · of 25 ranked | 170 |
| #25 | Contract ReviewProfessional · of 25 ranked | 180 |
| #25 | Scientific ResearchProfessional · of 25 ranked | 170 |
| #25 | Essay GradingEducation · of 25 ranked | 170 |
| #25 | RFP ResponseBusiness · of 25 ranked | 176 |
| #25 | OKRs & Strategic PlanningBusiness · of 25 ranked | 160 |
| #25 | RAG PipelinesAgents · of 25 ranked | 166 |
| #25 | Long-Context Q&AAgents · of 25 ranked | 156 |
| #25 | Fiction CollaboratorPersonal · of 25 ranked | 170 |
| #25 | Math ProofsResearch · of 25 ranked | 160 |
| #25 | Literature ReviewResearch · of 25 ranked | 170 |
| #25 | Self-Hosted / LocalCost · of 25 ranked | 117 |
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Quick answers
- How much does Z.ai: GLM 5.3 Flash (batch) cost?
- $0.15 per million input tokens and $0.50 per million output tokens.
- What is Z.ai: GLM 5.3 Flash (batch)'s context window?
- 1,048,575 tokens, roughly 1,572 pages of text in a single request.
- Does Z.ai: GLM 5.3 Flash (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Z.ai: GLM 5.3 Flash (batch) process images?
- Yes, it accepts image input.