The AI Tokens

GPT-5 mini vs Gemini 2.5 Flash Comparison

Compare fast, affordable AI models: OpenAI's GPT-5 mini vs Google's Gemini 2.5 Flash. Speed and cost analysis.

Quick Summary

GPT-5 mini offers better value with lower costs and consistent performance, while Gemini 2.5 Flash provides massive context windows.

Winner: GPT-5 mini

Pricing Comparison

GPT-5 mini

Input
$0.25/1M tokens
Output
$2/1M tokens

Gemini 2.5 Flash

Input
$0.3/1M tokens
Output
$2.5/1M tokens

Key Differences

  • GPT-5 mini is slightly cheaper for input tokens ($0.25 vs $0.30)
  • Gemini 2.5 Flash has 1M context window vs 128K
  • GPT-5 mini has better ecosystem integration
  • Gemini 2.5 Flash supports multimodal inputs natively
  • GPT-5 mini has more predictable pricing

Best Use Cases

GPT-5 mini

  • Cost-sensitive applications
  • Quick API integrations
  • Simple content generation
  • Chatbots and assistants
  • Batch processing tasks

Gemini 2.5 Flash

  • Large document processing
  • Multimodal applications
  • Google ecosystem integration
  • Long conversation contexts
  • Video and image analysis

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