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DeepSeek R1 vs GPT-4.5: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare DeepSeek R1 and GPT-4.5 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureDeepSeek R1GPT-4.5
ProviderDeepSeekOpenAI
Input Price / 1M tokens$0.700$75.00
Output Price / 1M tokens$2.50$150.00
Context Window
128K
128K
Max Output Tokens
8,192
8,192
Arena ELO
1,310
1,290
Coding ELO
1,330
1,295
TTFT (ms)
1,800
150
Tokens/sec
45
100
MultimodalNoYes
JSON ModeYesYes
Function CallingNoYes
VisionNoYes
When to Use DeepSeek R1

DeepSeek R1 excels at reasoning, math, coding, science tasks.

Strengths:

  • Excellent reasoning at a fraction of o3's cost
  • Open-source and self-hostable
  • Top-tier math performance
  • Very competitive with proprietary reasoning models

Best for:

reasoningmathcodingscience
When to Use GPT-4.5

GPT-4.5 excels at multimodal, vision, general-purpose tasks.

Strengths:

  • Latest OpenAI model
  • Strong multimodal
  • Fast inference

Best for:

multimodalvisiongeneral-purpose

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