DeepSeek V4 Flash vs OpenAI o4-mini
Compare DeepSeek V4 Flash by DeepSeek against OpenAI o4-mini by OpenAI, tested across 53 shared challenges. Updated April 2026.
Which is better, DeepSeek V4 Flash or OpenAI o4-mini?
DeepSeek V4 Flash and OpenAI o4-mini are both competitive models. DeepSeek V4 Flash costs $0.14/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
Key Differences Between DeepSeek V4 Flash and OpenAI o4-mini
DeepSeek V4 Flash is made by deepseek while OpenAI o4-mini is from openai. On pricing, DeepSeek V4 Flash costs $0.14/M input tokens vs $1.1/M for OpenAI o4-mini.
Per 1M tokens
DeepSeek V4 Flash is cheaper on both — 7.9× input, 16× output
No community votes yet. On paper, DeepSeek V4 Flash has the edge — bigger model tier, newer, bigger context window.
DeepSeek V4 Flash is 16x cheaper per token — worth considering if cost matters.
Style Comparison
DeepSeek V4 Flash uses 363.7x more bold
