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Home / Compare / DeepSeek V4 Flash Vision (Exp) vs Gemini 3.5 Flash-Lite

DeepSeek V4 Flash Vision (Exp) vs Gemini 3.5 Flash-Lite

Live Unit Economics, Prompt Cache Pricing, TTFT Latency & Multi-Benchmark Analysis

DeepSeek V4 Flash Vision (Exp) Specs → Gemini 3.5 Flash-Lite Specs →
🔄 Pivot Matchup:
VS
💰 Unit Cost Winner Gemini 3.5 Flash-Lite $0.075/1M in · $0.30/1M out
⚡ Latency & Speed Winner Gemini 3.5 Flash-Lite 78ms TTFT · 265 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 Gemini 3.5 Flash-Lite?

Gemini 3.5 Flash-Lite is 65.9% cheaper for input tokens ($0.07 vs. $0.22 per 1M tokens) and $0.30 vs. $0.65 for output tokens (2.9x cost advantage). In terms of operational performance, Gemini 3.5 Flash-Lite delivers lower response latency at 78ms TTFT (232ms faster than DeepSeek V4 Flash Vision (Exp)) with 265 vs. 165 tok/s throughput. DeepSeek V4 Flash Vision (Exp) leads coding evaluations at 77.4% SWE-bench Verified vs. 55.4% for Gemini 3.5 Flash-Lite and 91.3% vs. 68.4% 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) Gemini 3.5 Flash-Lite Net Delta / Advantage
Input Cost / 1M Tokens $0.22 $0.07 Gemini 3.5 Flash-Lite is 2.9x cheaper
Output Cost / 1M Tokens $0.65 $0.30 Gemini 3.5 Flash-Lite (53.8% lower)
Prompt Cache Read / 1M $0.007 $0.015 DeepSeek V4 Flash Vision (Exp) is 2.2x cheaper
Prompt Cache Write / 1M $0.22 $0.07 Gemini 3.5 Flash-Lite is 2.9x cheaper
Context Window (Max Output) 1,049k (128k out) 1,049k (33k out) Equal Context Window
Avg TTFT Response Latency 310ms 78ms Gemini 3.5 Flash-Lite (232ms faster)
Generation Speed (Throughput) 165 tok/s 265 tok/s Gemini 3.5 Flash-Lite (+100 tok/s faster)
SWE-bench Verified (Coding) 77.4% 55.4% DeepSeek V4 Flash Vision (Exp) (+22.0% lead)
GPQA Diamond (PhD STEM) 91.3% 68.4% DeepSeek V4 Flash Vision (Exp) (+22.9% lead)
MMLU-Pro (Multi-Discipline) 87.3% 80.1% DeepSeek V4 Flash Vision (Exp) (+7.2% lead)
MATH-500 (Quantitative Logic) 96.4% 90.2% DeepSeek V4 Flash Vision (Exp) (+6.2% lead)
Inference Value Score (IVR) 81.6 / 100 81.5 / 100 DeepSeek V4 Flash Vision (Exp) (+0.1 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

Gemini 3.5 Flash-Lite $2.63

$0.07/1M in · $0.30/1M out

Prompt Cache: $0.015/1M read · $0.07/1M write

Projected Monthly Cost Reduction
$3.46 / mo
(56.9% lower cost with Gemini 3.5 Flash-Lite)
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).

Explore all DeepSeek V4 Flash Vision (Exp) provider endpoints →
B

When to Choose Gemini 3.5 Flash-Lite

Choose Gemini 3.5 Flash-Lite (Google) for high-frequency data pipelines, real-time routing, large-scale document tagging, and ultra-low-cost conversational assistants — offering a 1,048k context window, 78ms TTFT, and $0.07/1M input pricing ($0.015/1M cached reads).

Explore all Gemini 3.5 Flash-Lite provider endpoints →

Related Questions & Decision Factors

Which is cheaper: DeepSeek V4 Flash Vision (Exp) or Gemini 3.5 Flash-Lite?

Gemini 3.5 Flash-Lite is cheaper at $0.075/1M input tokens ($0.30/1M 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 Gemini 3.5 Flash-Lite?

Gemini 3.5 Flash-Lite delivers faster first-token latency at 78ms TTFT (265 tok/s throughput) compared to 310ms TTFT (165 tok/s) for DeepSeek V4 Flash Vision (Exp).

How do DeepSeek V4 Flash Vision (Exp) and Gemini 3.5 Flash-Lite compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, DeepSeek V4 Flash Vision (Exp) scores 77.4% versus 55.4% for Gemini 3.5 Flash-Lite. On GPQA Diamond graduate-level STEM reasoning, DeepSeek V4 Flash Vision (Exp) scores 91.3% versus 68.4% for Gemini 3.5 Flash-Lite (and 96.4% vs 90.2% 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 Gemini 3.5 Flash-Lite?

Choose Gemini 3.5 Flash-Lite (Google) for high-frequency data pipelines, real-time routing, large-scale document tagging, and ultra-low-cost conversational assistants — offering a 1,048k context window, 78ms TTFT, and $0.07/1M input pricing ($0.015/1M cached reads).

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