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Model comparison Synced Apr 6, 2026

DeepSeek: R1 0528 vs OpenAI: GPT-5.4 Mini

Side-by-side comparison of DeepSeek: R1 0528 and OpenAI: GPT-5.4 Mini. Compare pricing, context window, capabilities, and find out which is better for your workflow.

Verdict

strong confidence

OpenAI: GPT-5.4 Mini leads overall

OpenAI: GPT-5.4 Mini leads in context window and capabilities and max output, making it the stronger choice for most workflows. DeepSeek: R1 0528 remains competitive with advantages in price.

Best for with DeepSeek: R1 0528

Budget-conscious workflows

Best for with OpenAI: GPT-5.4 Mini

Long document processingMulti-modal tasksLong-form content generation

Side-by-side

Technical specifications

DeepSeek: R1 0528 OpenAI: GPT-5.4 Mini
Provider DeepSeek OpenAI
Input price $0.45/M $0.75/M
Output price $2/M $5/M
Context window 164K 400K
Max output 66K 128K
Capabilities
Tool useReasoning
Tool useVisionReasoning
Released May 28, 2025 Mar 17, 2026

Scoring breakdown

How each dimension compares

Price

DeepSeek: R1 0528 leads

DeepSeek: R1 0528

$2/M tokens

OpenAI: GPT-5.4 Mini

$5/M tokens

Context Window

OpenAI: GPT-5.4 Mini leads

DeepSeek: R1 0528

164K tokens

OpenAI: GPT-5.4 Mini

400K tokens

Capabilities

OpenAI: GPT-5.4 Mini leads

DeepSeek: R1 0528

2/4

OpenAI: GPT-5.4 Mini

3/4

Max Output

OpenAI: GPT-5.4 Mini leads

DeepSeek: R1 0528

66K tokens

OpenAI: GPT-5.4 Mini

128K tokens

Recency

DeepSeek: R1 0528

May 2025

OpenAI: GPT-5.4 Mini

Mar 2026

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