Real data comparison
DeepSeek: DeepSeek V4 Flash 0423 vs Z.ai: GLM 5.3 Flash (batch)
On quality, Z.ai: GLM 5.3 Flash (batch) leads (41.9 vs 34.5). On price, DeepSeek: DeepSeek V4 Flash 0423 is cheaper ($0.09 vs $0.12 per 1M). In real production usage, DeepSeek: DeepSeek V4 Flash 0423 is used more (rank #2 vs #5 of 325). Across 27 real task categories where both models have classified traffic, DeepSeek: DeepSeek V4 Flash 0423 handles more of the traffic in 22 of them.
- DeepSeek: DeepSeek V4 Flash 0423
- Z.ai: GLM 5.3 Flash (batch)
Head-to-head by real task
DeepSeek: DeepSeek V4 Flash 0423 leads 22 of 27 shared task categories by real classified traffic share; Z.ai: GLM 5.3 Flash (batch) leads 5. Not a benchmark score - this is what developers actually route to each model for, per OpenRouter's task classification.
| Task | DeepSeek: DeepSeek V4 Flash 0423 | Z.ai: GLM 5.3 Flash (batch) |
|---|---|---|
| Memory Extraction | 32.2% | 5.3% |
| Content Writing | 26.0% | 4.9% |
| Conversation | 25.0% | 4.1% |
| Q&A & Knowledge | 26.1% | 7.7% |
| Finance & Trading | 20.1% | 5.3% |
| Customer Support | 15.8% | 2.0% |
| Data Extraction | 15.9% | 4.4% |
| Math | 24.0% | 12.6% |
| Security Audit | 19.9% | 8.8% |
| Web Search | 20.0% | 10.1% |
| Classification | 14.8% | 5.6% |
| Shell Execution | 17.4% | 9.8% |
| Code Generation | 8.5% | 15.8% |
| Frontend & UI | 11.0% | 18.2% |
| Repo Scanning | 16.0% | 9.4% |
| DevOps | 19.9% | 13.9% |
| Tool Dispatch | 8.9% | 3.2% |
| Data Transformation | 14.5% | 9.0% |
| SQL & Database | 13.0% | 7.9% |
| Debugging | 15.8% | 11.1% |
| Code Review | 12.4% | 15.8% |
| Multi-step Planning | 14.9% | 11.6% |
| Workflow Execution | 13.7% | 10.6% |
| DevOps & Config | 8.7% | 11.8% |
| File I/O | 12.5% | 10.1% |
| Research & Reports | 16.1% | 14.5% |
| Translation | 9.8% | 10.2% |
Usage share over time
- DeepSeek: DeepSeek V4 Flash 0423
- Z.ai: GLM 5.3 Flash (batch)
Frequently asked questions
DeepSeek: DeepSeek V4 Flash 0423 vs Z.ai: GLM 5.3 Flash (batch): which is better quality?
Z.ai: GLM 5.3 Flash (batch) scores higher on Artificial Analysis's Intelligence Index (41.9 vs 34.5).
DeepSeek: DeepSeek V4 Flash 0423 vs Z.ai: GLM 5.3 Flash (batch): which is cheaper?
DeepSeek: DeepSeek V4 Flash 0423 is cheaper at $0.09/1M vs $0.12/1M.
DeepSeek: DeepSeek V4 Flash 0423 vs Z.ai: GLM 5.3 Flash (batch): which is used more?
DeepSeek: DeepSeek V4 Flash 0423 has higher real OpenRouter usage share (rank #2 vs #5 of 325).
DeepSeek: DeepSeek V4 Flash 0423 vs Z.ai: GLM 5.3 Flash (batch): which wins more real-world task categories?
DeepSeek: DeepSeek V4 Flash 0423 handles more traffic in 22 of 27 shared task categories where both models have classified OpenRouter usage.
Source: OpenRouter (openrouter.ai/rankings), as of September 9, 2026.
Benchmark scores: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).
Methodology: www.smophy.ai/benchmark/methodology
Token counts originate from each provider's own tokenizer and are not directly comparable across providers.