Real data comparison
DeepSeek: DeepSeek V4 Pro 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch)
On quality, DeepSeek: DeepSeek V4.1 Flash (batch) leads (39.5 vs 36). On price, DeepSeek: DeepSeek V4.1 Flash (batch) is cheaper ($0.52 vs $1.98 per 1M). In real production usage, DeepSeek: DeepSeek V4.1 Flash (batch) is used more (rank #3 vs #14 of 373). Across 1 real task categories where both models have classified traffic, DeepSeek: DeepSeek V4.1 Flash (batch) handles more of the traffic in 1 of them.
- DeepSeek: DeepSeek V4 Pro 0423
- DeepSeek: DeepSeek V4.1 Flash (batch)
Head-to-head by real task
DeepSeek: DeepSeek V4 Pro 0423 leads 0 of 1 shared task categories by real classified traffic share; DeepSeek: DeepSeek V4.1 Flash (batch) leads 1. Not a benchmark score - this is what developers actually route to each model for, per OpenRouter's task classification.
| Task | DeepSeek: DeepSeek V4 Pro 0423 | DeepSeek: DeepSeek V4.1 Flash (batch) |
|---|---|---|
| Roleplay & Fiction | 2.8% | 8.0% |
Usage share over time
- DeepSeek: DeepSeek V4 Pro 0423
- DeepSeek: DeepSeek V4.1 Flash (batch)
Frequently asked questions
DeepSeek: DeepSeek V4 Pro 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 36).
DeepSeek: DeepSeek V4 Pro 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which is cheaper?
DeepSeek: DeepSeek V4.1 Flash (batch) is cheaper at $0.52/1M vs $1.98/1M.
DeepSeek: DeepSeek V4 Pro 0423 vs DeepSeek: DeepSeek V4.1 Flash (batch): which is used more?
DeepSeek: DeepSeek V4.1 Flash (batch) has higher real OpenRouter usage share (rank #3 vs #14 of 373).
DeepSeek: DeepSeek V4 Pro 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 1 of 1 shared task categories where both models have classified OpenRouter usage.
Source: OpenRouter (openrouter.ai/rankings), as of October 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.
