Z.ai: GLM 5.3 Flash (batch)
This AI model, GLM 5.3 Flash, is offered by vendor z-ai and can handle text, image, and video input modalities with a context length of up to 1 megabyte. It supports tools and reasoning capabilities, but does not provide structured output. GLM 5.3 Flash may be worth considering for those on a budget who require a model that can handle multiple input types with high context capacity. Its price point is $0.06 per million input tokens and $0.2 per million output tokens. With a blended benchmark score of 70.6 across one independent benchmark, it holds some value in terms of performance. Those seeking a cost-effective option within its capabilities may find this model suitable for their needs.
Benchmark results
Independent, published benchmarks. Blended score 70.6 across 1 benchmark, last refreshed 2026-09-27. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 69.0 |
- 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
- 131,072 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 $0.06/M input and $0.20/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 | $0.04 |
| A month of a busy support chatbot | 5M in / 2M out | $0.70 |
Price & spec history
Tracked daily by PicksByModel since 2026-08-29.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-09-23 | $0.06 | $0.20 | 1,048,576 |
| 2026-09-09 | $0.07 | $0.25 | 1,048,576 |
| 2026-08-29 | $0.15 | $0.50 | 1,048,575 |
Strong choice for
Category rankings
Where Z.ai: GLM 5.3 Flash (batch) places across the 21 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #3 | Image CaptioningVision · of 25 ranked | 121 |
| #8 | Short-Form SummarizationWriting · of 25 ranked | 127 |
| #8 | Email DraftingWriting · of 25 ranked | 123 |
| #8 | Language LearningEducation · of 25 ranked | 123 |
| #8 | Chat CompanionPersonal · of 25 ranked | 127 |
| #8 | Trivia & General KnowledgePersonal · of 25 ranked | 117 |
| #10 | Cheap Bulk InferenceCost · of 25 ranked | 137 |
| #11 | Video SummarizationVideo · of 25 ranked | 148 |
| #12 | Code CompletionCode · of 25 ranked | 133 |
| #12 | Real-Time ChatLatency · of 25 ranked | 118 |
| #13 | Sales / Cold EmailBusiness · of 25 ranked | 119 |
| #13 | Job Application DraftingBusiness · of 25 ranked | 119 |
| #13 | Video Auto-TaggingVideo · of 25 ranked | 123 |
| #13 | Journaling HelperPersonal · of 25 ranked | 119 |
| #13 | Recipe GenerationPersonal · of 25 ranked | 119 |
| #18 | Self-Hosted / LocalCost · of 25 ranked | 117 |
| #19 | Resume WritingBusiness · of 25 ranked | 113 |
| #20 | Regex WritingCode · of 25 ranked | 126 |
| #20 | Language TranslationWriting · of 25 ranked | 126 |
| #20 | Tutoring for KidsPersonal · of 25 ranked | 126 |
| #24 | Code DocumentationCode · of 25 ranked | 138 |
Similar models
Z.ai: GLM 5.3 FlashX
Z.ai: GLM 5.3 Flash
Z.ai: GLM 5V Turbo
Z.ai: GLM 4.6V
Z.ai: GLM 4.7 Flash
Z.ai: GLM 4.6
Quick answers
- How much does Z.ai: GLM 5.3 Flash (batch) cost?
- $0.06 per million input tokens and $0.20 per million output tokens.
- What is Z.ai: GLM 5.3 Flash (batch)'s context window?
- 1,048,576 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.