DeepSeek V4 Flash vs Gemini 3.1 Flash Lite Preview, API pricing and model comparison

Compare DeepSeek V4 Flash vs Gemini 3.1 Flash Lite Preview side by side by input/output token price, context window, benchmark signals, capabilities, and example monthly API cost.

Comparison matrixLLM Table

Models to compare2/4

Model 1

1.0M

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Model 2

1.0M

Select model366 models

DeepSeek: DeepSeek V4 Flash

OpenRouter

Cheapest (this scenario)

Input

$0.1260 / 1M

Output

$0.2520 / 1M

Context

1.0MLargest context

Monthly cost

$20.16

Benchmark

1,440Top benchmarkLMArena Text Arena

ToolsJSONReasoningLong context

Google: Gemini 3.1 Flash Lite Preview

OpenRouter

Input

$0.2500 / 1M

Output

$1.50 / 1M

Context

1.0MLargest context

Monthly cost

$70.00

Benchmark

1,438LMArena Text Arena

VisionToolsJSONReasoningAudioLong context

DeepSeek: DeepSeek V4 Flash

OpenRouter

Google: Gemini 3.1 Flash Lite Preview

OpenRouter

Input

$0.1260 / 1MCheapest (this scenario)

$0.2500 / 1M

Output

$0.2520 / 1MCheapest (this scenario)

$1.50 / 1M

Context

1.0MLargest context

Benchmark

1,440Top benchmark

LMArena Text Arena

1,438

LMArena Text Arena

Monthly cost

$20.16Cheapest (this scenario)

$70.00

Capabilities

ToolsJSONReasoningLong context

VisionToolsJSONReasoningAudioLong context

FAQ

Model comparison notes

What should I compare first?

Start with scenario cost, context window, benchmark signal, and required capabilities such as tools, JSON output, reasoning, vision, or audio.

Why can the cheapest model be a poor fit?

Low token price does not guarantee enough context, output limit, quality, or tool support. The comparison table keeps cost and capability signals visible together.

Are route prices directly comparable?

They are useful directional comparisons, but direct provider APIs and aggregator routes can have different terms, limits, and billing details.

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