DeepSeek V4.1 Flash vs GLM-5.3
DeepSeek V4.1 Flash (DeepSeek) and GLM-5.3 (Z.ai (Zhipu AI)) compared on benchmarks, pricing, context window, and use-case rankings.
- DeepSeek V4.1 Flash is cheaper on input tokens: $0.02 vs $0.40 per 1M.
- GLM-5.3 ranks higher for coding (89th vs 74th percentile).
| Attribute | DeepSeek V4.1 Flash | GLM-5.3 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 157 | 157 |
| Coding | 74 | 89 |
| Math | 68 | 35 |
| Reasoning & Knowledge | 57 | 62 |
| Agentic & Tools | 39 | 73 |
| Specifications | ||
| Developer | DeepSeek | Z.ai (Zhipu AI) |
| Family | DeepSeek | — |
| Released | Sep 9, 2026 | Aug 14, 2026 |
| Parameters | 552B | 744B |
| Availability | Open weights (unrestricted) | Open weights (restricted use) |
| Context window | 1M | 1M |
| Price — $/M input | $0.02 | $0.40 |
| Price — $/M output | $0.40 | $2.46 |
| Inputs | text, image | text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 98% | 91% |
| APEX | 40% | 57% |
| ARC-AGI | 95% | — |
| ARC-AGI-2 | 73% | — |
| GPQA Diamond | 90% | 91% |
| Humanity's Last Exam | 39% | 42% |
| SciCode | 52% | 59% |
| SimpleBench | 67% | 66% |
| SimpleQA Verified | 43% | 41% |
| WebDev Arena | 1614 | 1614 |
| WeirdML | — | 75% |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Is DeepSeek V4.1 Flash better than GLM-5.3?
On Epoch AI's Capabilities Index, DeepSeek V4.1 Flash and GLM-5.3 both score 157. The right pick depends on your task, so compare their coding, math, and reasoning scores in the table above.
Which is cheaper, DeepSeek V4.1 Flash or GLM-5.3?
DeepSeek V4.1 Flash is cheaper on input tokens at $0.02 per million, versus $0.40 (representative OpenRouter pricing).
Which has a larger context window, DeepSeek V4.1 Flash or GLM-5.3?
Neither: both support up to 1M tokens.
Which is better for coding, DeepSeek V4.1 Flash or GLM-5.3?
GLM-5.3 ranks higher across coding benchmarks like WebDev Arena and SciCode: 89th vs 74th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.