Z.ai: GLM 5.3 FlashX vs Google: Gemini 3.5 Flash Lite (batch)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| Z.ai: GLM 5.3 FlashX | Google: Gemini 3.5 Flash Lite (batch) | |
|---|---|---|
| Vendor | z-ai | |
| Quality Score | 100 | 100 |
| Input Price | $0.37/M | $0.15/M |
| Output Price | $1.25/M | $1.25/M |
| Context Window | 1,048,576 | 1,048,576 |
| Max Output | 131,072 | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Gemini 3.5 Flash Lite (batch) costs $0.46 and GLM 5.3 FlashX costs $0.68, so Gemini 3.5 Flash Lite (batch) is about 1.5 times cheaper for the same work.
Both read up to 1,048,576 tokens at once, roughly 1,573 pages of text.
Only Gemini 3.5 Flash Lite (batch) offers audio input.
Across the 5 tasks where they differ, Gemini 3.5 Flash Lite (batch) on 5 (SQL Generation, CSV / Spreadsheet Cleanup, Bulk Data Labeling and others).
GLM 5.3 FlashX was released in September 2026 and Gemini 3.5 Flash Lite (batch) in July 2026.
Pick Gemini 3.5 Flash Lite (batch) if you need lower cost, audio input or the stronger all-round task scores.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | Z.ai: GLM 5.3 FlashX | Google: Gemini 3.5 Flash Lite (batch) |
|---|---|---|
| SQL Generation | 133 | 133 |
| CSV / Spreadsheet Cleanup | 133 | 133 |
| Bulk Data Labeling | 129 | 129 |
| Long-Document Summarization | 137 | 137 |
| Blog Post Writing | 121 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →