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Mattias chaw
Mattias chaw

Posted on • Originally published at aiwave.live

DeepSeek V3 vs V4: Complete Comparison Guide — Architecture, Pricing & Performance 2026

With multiple DeepSeek models available — V3, V3.1, V3.2, V4 Pro, V4 Flash, and R1 — choosing the right one can be confusing. Here's a comprehensive comparison.

Pricing Comparison

Model Input (1M tokens) Output (1M tokens)
DeepSeek V4 Pro $0.14 $0.28
DeepSeek V4 Flash $0.07 $0.14
DeepSeek R1 (Reasoner) $0.55 $1.10
DeepSeek V3 $0.27 $1.10
GPT-4o $2.50 $10.00

Key finding: DeepSeek V4 Pro is nearly half the price of V3 ($0.14 vs $0.27) while delivering significantly better performance.

Performance Benchmarks

Benchmark V4 Pro V3 Improvement
MMLU (knowledge) 90.2% 86.8% +3.4%
HumanEval (coding) 92.5% 85.4% +7.1%
MATH (reasoning) 88.7% 79.2% +9.5%
Context Length 128K 64K +100%

Quick Reference

  • DeepSeek V4 Pro — Best all-rounder for production apps ($0.14/M)
  • DeepSeek V4 Flash — High-volume, cost-sensitive ($0.07/M)
  • DeepSeek R1 — Complex reasoning & chain-of-thought ($0.55/M)
  • DeepSeek V3 — Legacy fallback only ($0.27/M)

All models are available through a single OpenAI-compatible API key via AIWave.

Complete guide with architecture details and migration tips: DeepSeek V3 vs V4 Comparison

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