DeepSeek-R1 vs GPT-4o Mini: Detailed Comparison

Choosing between DeepSeek-R1 (DeepSeek) and GPT-4o Mini (OpenAI) comes down to three things: per-token pricing, context window, and which capability matters most for your workload. DeepSeek-R1 costs $0.55/M input vs $0.15/M for GPT-4o Mini; context windows are 128K vs 128K tokens. Detailed breakdown below.

Side-by-side specs

SpecDeepSeek-R1GPT-4o Mini
ProviderDeepSeekOpenAI
Released2025-01-202024-07-18
Input price $0.55/M $0.15/M
Output price $2.19/M $0.60/M
Cached input $0.1400/M $0.0750/M
Context window 128K 128K
Max output 32K 16K
Modalities text text image
Tokenizer deepseek o200k_base

Capability matrix

CapabilityDeepSeek-R1GPT-4o Mini
json mode Yes Yes
streaming Yes Yes
reasoning Yes No
function calling No Yes
vision No Yes

Benchmark comparison

Higher is better for all benchmarks shown.

BenchmarkCategoryDeepSeek-R1GPT-4o MiniΔ
GPQA Diamond reasoning 71.5
MATH math 97.3
AIME 2025 math 79.8

Per-call cost on typical workloads

Workload (in/out tokens)DeepSeek-R1GPT-4o MiniCheaper by
Standard chat (1K / 500) $0.001645 $0.000450 GPT-4o Mini by $0.001195
RAG (4K / 500) $0.003295 $0.000900 GPT-4o Mini by $0.002395
Long doc (20K / 1K) $0.013190 $0.003600 GPT-4o Mini by $0.009590
Very long context (100K / 2K) $0.058285 $0.015900 GPT-4o Mini by $0.042385

When to choose DeepSeek-R1 over GPT-4o Mini

  • Supports reasoning — GPT-4o Mini does not.

When to choose GPT-4o Mini over DeepSeek-R1

  • Per-token input cost is 73% lower than DeepSeek-R1.
  • Supports function calling — DeepSeek-R1 does not.
  • Supports vision — DeepSeek-R1 does not.

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