DeepSeek: DeepSeek V4.1 Flash (batch) vs Z.ai: GLM 5.3 Flash (batch)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| DeepSeek: DeepSeek V4.1 Flash (batch) | Z.ai: GLM 5.3 Flash (batch) | |
|---|---|---|
| Vendor | deepseek | z-ai |
| Quality Score | 100 | 100 |
| Input Price | $0.01/M | $0.05/M |
| Output Price | $0.20/M | $0.18/M |
| Context Window | 1,048,576 | 1,048,576 |
| Max Output | 943,718 | 131,072 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, DeepSeek V4.1 Flash (batch) costs $0.061 and GLM 5.3 Flash (batch) costs $0.095, so DeepSeek V4.1 Flash (batch) is about 1.6 times cheaper for the same work.
Both read up to 1,048,576 tokens at once, roughly 1,573 pages of text.
Only GLM 5.3 Flash (batch) offers video input.
DeepSeek V4.1 Flash (batch) was released in September 2026 and GLM 5.3 Flash (batch) in August 2026.
Pick DeepSeek V4.1 Flash (batch) if you need lower cost; pick GLM 5.3 Flash (batch) if you need video input.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.