Grok 4.3 vs DeepSeek V4 Pro, API pricing and model comparison

Compare Grok 4.3 vs DeepSeek V4 Pro 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

Select model366 models

Model 2

1.0M

Select model366 models

xAI: Grok 4.3

OpenRouter

Input

$1.25 / 1M

Output

$2.50 / 1M

Context

Monthly cost

$200.00

Benchmark

1,455LMArena Text Arena

VisionToolsJSONReasoningLong context

DeepSeek: DeepSeek V4 Pro

OpenRouter

Cheapest (this scenario)

Input

$0.4350 / 1M

Output

$0.8700 / 1M

Context

1.0MLargest context

Monthly cost

$69.60

Benchmark

1,463Top benchmarkLMArena Text Arena

ToolsJSONReasoningLong context

xAI: Grok 4.3

OpenRouter

DeepSeek: DeepSeek V4 Pro

OpenRouter

Input

$1.25 / 1M

$0.4350 / 1MCheapest (this scenario)

Output

$2.50 / 1M

$0.8700 / 1MCheapest (this scenario)

Context

1.0MLargest context

Benchmark

1,455

LMArena Text Arena

1,463Top benchmark

LMArena Text Arena

Monthly cost

$200.00

$69.60Cheapest (this scenario)

Capabilities

VisionToolsJSONReasoningLong context

ToolsJSONReasoningLong 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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