Real data comparison
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch)
On quality, DeepSeek: DeepSeek V4.1 Flash (batch) leads (39.5 vs 34.3). On price, DeepSeek: DeepSeek V4 Flash 0423 is cheaper ($0.19 vs $0.20 per 1M). In real production usage, DeepSeek: DeepSeek V4 Flash 0423 is used more (rank #2 vs #4 of 353). Across 25 real task categories where both models have classified traffic, DeepSeek: DeepSeek V4.1 Flash (batch) handles more of the traffic in 14 of them.
- DeepSeek: DeepSeek V4 Flash 0423
- DeepSeek: DeepSeek V4.1 Flash (batch)
Head-to-head by real task
DeepSeek: DeepSeek V4 Flash 0423 leads 11 of 25 shared task categories by real classified traffic share; DeepSeek: DeepSeek V4.1 Flash (batch) leads 14. 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 | DeepSeek: DeepSeek V4.1 Flash (batch) |
|---|---|---|
| Content Writing | 30.7% | 3.9% |
| Roleplay & Fiction | 32.0% | 7.8% |
| Memory Extraction | 25.9% | 4.4% |
| Data Transformation | 23.9% | 3.4% |
| Conversation | 24.9% | 5.1% |
| Math | 25.0% | 7.1% |
| Q&A & Knowledge | 22.2% | 5.7% |
| Debugging | 5.0% | 17.0% |
| Code Generation | 4.4% | 15.7% |
| Customer Support | 13.2% | 2.8% |
| File I/O | 4.9% | 14.9% |
| DevOps & Config | 4.4% | 14.3% |
| Web Search | 15.7% | 7.2% |
| Shell Execution | 8.3% | 16.4% |
| SQL & Database | 5.0% | 11.7% |
| Finance & Trading | 12.5% | 6.2% |
| Frontend & UI | 5.3% | 11.5% |
| Repo Scanning | 7.9% | 13.7% |
| Security Audit | 13.4% | 18.5% |
| Research & Reports | 11.9% | 9.4% |
| Tool Dispatch | 7.8% | 9.1% |
| Code Review | 8.0% | 9.2% |
| Workflow Execution | 9.3% | 10.2% |
| Multi-step Planning | 10.8% | 11.4% |
| DevOps | 12.6% | 12.7% |
Usage share over time
- DeepSeek: DeepSeek V4 Flash 0423
- DeepSeek: DeepSeek V4.1 Flash (batch)
Frequently asked questions
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which is better quality?
DeepSeek: DeepSeek V4.1 Flash (batch) scores higher on Artificial Analysis's Intelligence Index (39.5 vs 34.3).
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which is cheaper?
DeepSeek: DeepSeek V4 Flash 0423 is cheaper at $0.19/1M vs $0.20/1M.
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which is used more?
DeepSeek: DeepSeek V4 Flash 0423 has higher real OpenRouter usage share (rank #2 vs #4 of 353).
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which wins more real-world task categories?
DeepSeek: DeepSeek V4.1 Flash (batch) handles more traffic in 14 of 25 shared task categories where both models have classified OpenRouter usage.
Source: OpenRouter (openrouter.ai/rankings), as of September 23, 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.