Gemini 3.1 Flash Lite vs GLM-5.3-FlashX
Price and specs side by side · USD per 1M tokens · verified 2026-10-23
// side by side
| metric | Gemini 3.1 Flash Lite | GLM-5.3-FlashX |
|---|---|---|
| input / 1M | $0.25 | $0.37 |
| output / 1M | $1.50 | $1.25 |
| blended (3:1) | $0.5625 | $0.59 |
| cache read / 1M | $0.025 | $0.075 |
| context | 1.05M | 1M |
| max output | 65.5K | 131.1K |
| input types | text · image · video · audio · pdf | text · image · video · pdf |
| reasoning | yes | yes |
| tool calling | yes | yes |
| structured output | yes | yes |
| open weights | no | yes |
| released | 2026-05-07 | 2026-09-18 |
| knowledge cutoff | 2025-01 | n/a |
| lab | Z.AI (Zhipu) |
// monthly cost scenarios
| workload | tokens in / out | Gemini 3.1 Flash Lite | GLM-5.3-FlashX |
|---|---|---|---|
| Chatbot | 10M / 2M | $5.50 | $6.20 |
| RAG app | 50M / 5M | $20.00 | $24.75 |
| Coding agent | 20M / 10M | $20.00 | $19.90 |
// verdict
- Gemini 3.1 Flash Lite is 4.7% cheaper than GLM-5.3-FlashX on a blended 3:1 input/output basis.
- Gemini 3.1 Flash Lite has the larger context window (1.05M vs 1M tokens).
- Chatbot (10M input / 2M output tokens per month): Gemini 3.1 Flash Lite costs $5.50 vs $6.20 for GLM-5.3-FlashX, saving $0.70 per month.
- RAG app (50M input / 5M output tokens per month): Gemini 3.1 Flash Lite costs $20.00 vs $24.75 for GLM-5.3-FlashX, saving $4.75 per month.
- Coding agent (20M input / 10M output tokens per month): GLM-5.3-FlashX costs $19.90 vs $20.00 for Gemini 3.1 Flash Lite, saving $0.10 per month.
// Gemini 3.1 Flash Lite or GLM-5.3-FlashX: which one to choose
- Choose Gemini 3.1 Flash Lite for cost-sensitive, high-volume workloads.
- Choose Gemini 3.1 Flash Lite for long documents and large codebases (1.05M-token context).
- Choose GLM-5.3-FlashX if you want open weights you can self-host.