DeepSeek V3 vs DeepSeek-V4 Flash Vision Exp
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: DeepSeek V3 or DeepSeek-V4 Flash Vision Exp?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | DeepSeek V3 | DeepSeek-V4 Flash Vision Exp | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $0.14 | $0.14 | Identical Pricing |
| Output Cost / 1M Tokens | $0.28 | $0.56 | DeepSeek V3 (50.0% lower) |
| Prompt Cache Read / 1M | $0.014 | $0.014 | Identical Cache Read Pricing |
| Prompt Cache Write / 1M | $0.14 | $0.14 | Identical Cache Write Pricing |
| Avg TTFT Response Latency | 410ms | 140ms | DeepSeek-V4 Flash Vision Exp (+270ms faster) |
| SWE-bench Verified (Coding) | 42% | 64.2% | DeepSeek-V4 Flash Vision Exp (+22.2% lead) |
| Inference Value Score (IVR) | 75.9 / 100 | 79.9 / 100 | DeepSeek-V4 Flash Vision Exp (+4 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens with prompt caching economics.
Estimated Monthly Spend
$0.14/1M in · $0.28/1M out
Prompt Cache: $0.014/1M read · $0.14/1M write
$0.14/1M in · $0.56/1M out
Prompt Cache: $0.014/1M read · $0.14/1M write
When to Choose DeepSeek V3
Choose DeepSeek V3 when you need Massive mixture-of-experts generalist model offering industry-leading price-to-performance efficiency for production chat and drafting. and have an infrastructure budget aligned with $0.14/1M tokens.
When to Choose DeepSeek-V4 Flash Vision Exp
Choose DeepSeek-V4 Flash Vision Exp when you need Ultra-low-cost multimodal open weights with 1M context and multi-head latent attention for high-speed document and visual reasoning. and prioritize DeepSeek ecosystem integration at $0.14/1M tokens.
Related Questions & Decision Factors
Which is cheaper: DeepSeek V3 or DeepSeek-V4 Flash Vision Exp?
Both DeepSeek V3 and DeepSeek-V4 Flash Vision Exp share identical input pricing at $0.14/1M tokens.
Which model has lower latency: DeepSeek V3 or DeepSeek-V4 Flash Vision Exp?
DeepSeek-V4 Flash Vision Exp delivers faster response times with an average TTFT of 140ms vs 410ms for DeepSeek V3.
When should you choose DeepSeek V3?
Choose DeepSeek V3 when you need Massive mixture-of-experts generalist model offering industry-leading price-to-performance efficiency for production chat and drafting. and have an infrastructure budget aligned with $0.14/1M tokens.
When should you choose DeepSeek-V4 Flash Vision Exp?
Choose DeepSeek-V4 Flash Vision Exp when you need Ultra-low-cost multimodal open weights with 1M context and multi-head latent attention for high-speed document and visual reasoning. and prioritize DeepSeek ecosystem integration at $0.14/1M tokens.