💰 Unit Cost Winner GPT-4o Mini $0.15/1M in · $0.60/1M out
⚡ Latency & Speed Winner GPT-4o Mini 220ms TTFT · 140 tok/s
💻 Coding (SWE) Winner DeepSeek V4 Flash Vision (Exp) 77.4% SWE-bench · 94.5% HumanEval
🧠 STEM Reasoning Winner DeepSeek V4 Flash Vision (Exp) 91.3% GPQA · 96.4% MATH-500

Which model is better: DeepSeek V4 Flash Vision (Exp) or GPT-4o Mini?

GPT-4o Mini is 31.8% cheaper for input tokens ($0.15 vs. $0.22 per 1M tokens) and $0.60 vs. $0.65 for output tokens (1.5x cost advantage). In terms of operational performance, GPT-4o Mini delivers lower response latency at 220ms TTFT (90ms faster than DeepSeek V4 Flash Vision (Exp)) with 140 vs. 165 tok/s throughput. DeepSeek V4 Flash Vision (Exp) leads coding evaluations at 77.4% SWE-bench Verified vs. 41.0% for GPT-4o Mini and 91.3% vs. 40.2% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta (12 Dimensions)

Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.

Metric / Dimension DeepSeek V4 Flash Vision (Exp) GPT-4o Mini Net Delta / Advantage
Input Cost / 1M Tokens $0.22 $0.15 GPT-4o Mini is 1.5x cheaper
Output Cost / 1M Tokens $0.65 $0.60 GPT-4o Mini (7.7% lower)
Prompt Cache Read / 1M $0.007 $0.075 DeepSeek V4 Flash Vision (Exp) is 10.9x cheaper
Prompt Cache Write / 1M $0.22 $0.15 GPT-4o Mini is 1.5x cheaper
Context Window (Max Output) 1,049k (128k out) 131k (16k out) DeepSeek V4 Flash Vision (Exp) (8.0x larger context)
Avg TTFT Response Latency 310ms 220ms GPT-4o Mini (90ms faster)
Generation Speed (Throughput) 165 tok/s 140 tok/s DeepSeek V4 Flash Vision (Exp) (+25 tok/s faster)
SWE-bench Verified (Coding) 77.4% 41% DeepSeek V4 Flash Vision (Exp) (+36.4% lead)
GPQA Diamond (PhD STEM) 91.3% 40.2% DeepSeek V4 Flash Vision (Exp) (+51.1% lead)
MMLU-Pro (Multi-Discipline) 87.3% 68% DeepSeek V4 Flash Vision (Exp) (+19.3% lead)
MATH-500 (Quantitative Logic) 96.4% 70.2% DeepSeek V4 Flash Vision (Exp) (+26.2% lead)
Inference Value Score (IVR) 81.6 / 100 67.2 / 100 DeepSeek V4 Flash Vision (Exp) (+14.4 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

DeepSeek V4 Flash Vision (Exp) $6.09

$0.22/1M in · $0.65/1M out

Prompt Cache: $0.007/1M read · $0.22/1M write

GPT-4o Mini $5.81

$0.15/1M in · $0.60/1M out

Prompt Cache: $0.075/1M read · $0.15/1M write

Projected Monthly Cost Reduction
$0.27 / mo
(4.5% lower cost with GPT-4o Mini)
Open Full Matchup Analysis →
A

When to Choose DeepSeek V4 Flash Vision (Exp)

Choose DeepSeek V4 Flash Vision (Exp) (DeepSeek) for ultra-low-cost open-weight multimodal MoE built for high-throughput visual document OCR, chart interpretation, and real-time autonomous coding agents — offering a 1,048k context window, 310ms TTFT, and $0.22/1M input pricing ($0.007/1M cached reads).

B

When to Choose GPT-4o Mini

Choose GPT-4o Mini (OpenAI) for high-volume classification, lightweight RAG chatbots, and structured JSON extraction — offering a 131k context window, 220ms TTFT, and $0.15/1M input pricing ($0.075/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: DeepSeek V4 Flash Vision (Exp) or GPT-4o Mini?

GPT-4o Mini is cheaper at $0.15/1M input tokens ($0.60/1M output) compared to $0.22/1M input ($0.65/1M output) for DeepSeek V4 Flash Vision (Exp).

Which model has lower TTFT latency and higher tok/s throughput: DeepSeek V4 Flash Vision (Exp) or GPT-4o Mini?

GPT-4o Mini delivers faster first-token latency at 220ms TTFT (140 tok/s throughput) compared to 310ms TTFT (165 tok/s) for DeepSeek V4 Flash Vision (Exp).

How do DeepSeek V4 Flash Vision (Exp) and GPT-4o Mini compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, DeepSeek V4 Flash Vision (Exp) scores 77.4% versus 41% for GPT-4o Mini. On GPQA Diamond graduate-level STEM reasoning, DeepSeek V4 Flash Vision (Exp) scores 91.3% versus 40.2% for GPT-4o Mini (and 96.4% vs 70.2% on MATH-500).

When should you choose DeepSeek V4 Flash Vision (Exp)?

Choose DeepSeek V4 Flash Vision (Exp) (DeepSeek) for ultra-low-cost open-weight multimodal MoE built for high-throughput visual document OCR, chart interpretation, and real-time autonomous coding agents — offering a 1,048k context window, 310ms TTFT, and $0.22/1M input pricing ($0.007/1M cached reads).

When should you choose GPT-4o Mini?

Choose GPT-4o Mini (OpenAI) for high-volume classification, lightweight RAG chatbots, and structured JSON extraction — offering a 131k context window, 220ms TTFT, and $0.15/1M input pricing ($0.075/1M cached reads).

Explore High-Priority Related Model Matchups