DeepSeek V4.1 Flash 1017 vs GLM 5.3 Flash
A side-by-side comparison of DeepSeek V4.1 Flash 1017 from DeepSeek and GLM 5.3 Flash from Z.ai, using published pricing, context windows, supported inputs, and release dates.
- DeepSeek V4.1 Flash 1017 input
- $0.3
- GLM 5.3 Flash input
- $0.0285
Key differences
GLM 5.3 Flash is 91% cheaper on input tokens ($0.0285 vs $0.3 per 1M).
DeepSeek V4.1 Flash 1017 is the newer release (Oct 17, 2026, vs Aug 26, 2026).
DeepSeek V4.1 Flash 1017 vs GLM 5.3 Flash specs
| Spec | DeepSeek V4.1 Flash 1017 | GLM 5.3 Flash |
|---|---|---|
| Provider | DeepSeek | Z.ai |
| Released | Oct 17, 2026 | Aug 26, 2026 |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Input price / 1M tokens | $0.3 | $0.0285 |
| Output price / 1M tokens | $1.2 | $0.0923 |
| 10K in + 1K out request | $0.0042 | $0.00038 |
| Accepts | image, text | image, text, video |
| Produces | text | text |
| Tool calling | Yes | Yes |
| Structured outputs | Yes | Yes |
| Reasoning | Yes | Yes |
| Popularity | 65/100 | 57/100 |
Highlighted values are better on that spec: lower price, larger context window, newer release, or higher popularity. Prices in USD per 1M tokens as listed on OpenRouter.
DeepSeek V4.1 Flash 1017 vs GLM 5.3 Flash questions
Is DeepSeek V4.1 Flash 1017 or GLM 5.3 Flash cheaper?
GLM 5.3 Flash has the lower listed input price ($0.0285 per million tokens). For a request with 10,000 input and 1,000 output tokens, DeepSeek V4.1 Flash 1017 costs about $0.0042 and GLM 5.3 Flash about $0.00038.
Which model should I choose?
Pick the cheaper model for high-volume, simpler tasks, and test both on a sample of your real prompts before committing. Price and context size do not measure output quality on your specific workload.