DeepSeek V4.1 Flash 1017 vs GLM 5.3 FlashX Legal
Detailed technical comparison between DeepSeek V4.1 Flash 1017 (DeepSeek) and GLM 5.3 FlashX Legal (Zhipu AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Tie
Equal CapacityTie
Equal CapabilityTie
Equal SpeedDeepSeek V4.1 Flash 1017
$0.15 / MTokDeepSeek V4.1 Flash 1017
DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...
GLM 5.3 FlashX Legal
GLM-5.3-FlashX-Legal (GLM-Legal) is Z.ai's legal-domain variant of GLM-5.3-FlashX, a native multimodal model that accepts text, image, and video input and produces text. It adds legal-domain mid-training and post-training with reinforcement...
Technical Specifications
🏆 = Superior Spec| Specification | DeepSeek V4.1 Flash 1017 | GLM 5.3 FlashX Legal |
|---|---|---|
| Provider | DeepSeek | Zhipu AI |
| Context Window | 1,048,576 tokens | 1,048,576 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | self hostable | managed api |
| Production Stability | Not verified | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-10-17 | 2026-11-02 |
API Pricing Comparison
Input Price per Million Tokens
DeepSeek V4.1 Flash 1017
$0.15
GLM 5.3 FlashX Legal
$0.37
Output Price per Million Tokens
DeepSeek V4.1 Flash 1017
$0.60
GLM 5.3 FlashX Legal
$1.25
💡 Cost Ratio: DeepSeek V4.1 Flash 1017 is 2.5x cheaper per input token than GLM 5.3 FlashX Legal.
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Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
DeepSeek V4.1 Flash 1017 Quirks & Gotchas
No developer gotchas reported.
GLM 5.3 FlashX Legal Quirks & Gotchas
No developer gotchas reported.
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