2026 HEAD-TO-HEAD API BENCHMARK

GPT-4o mini vs Gemini 2.0 Flash: API Pricing, Context & Automation ROI

Switching from GPT-4o mini to Gemini 2.0 Flash cuts token costs by 33% on compatible workflows. Compare exact token pricing and speed below.

Side-by-Side Technical & Cost Comparison

Metric GPT-4o mini (OpenAI) Gemini 2.0 Flash (Google)
Input Cost (per 1M tokens) $0.150 $0.100
Cached Input Cost (per 1M) $0.075 $0.025
Output Cost (per 1M tokens) $0.60 $0.40
Max Context Window 128,000 tokens 1,000,000 tokens
Throughput Speed ~165 tokens/sec ~190 tokens/sec
Monthly Cost (1,000 runs/day) $22.05 / month $14.70 / month
Best Automation Use Case High-volume n8n/Make.com webhooks, email classification, data tagging, and RAG summarization at scale. High-frequency scraping, bulk PDF invoice parsing, voice agent backends, and zero-budget startup automations.

When to Choose GPT-4o mini

High-volume n8n/Make.com webhooks, email classification, data tagging, and RAG summarization at scale.

  • Ultra-low cost
  • High throughput
  • Replaces GPT-3.5 Turbo
  • 99% reliability on simple JSON tasks

When to Choose Gemini 2.0 Flash

High-frequency scraping, bulk PDF invoice parsing, voice agent backends, and zero-budget startup automations.

  • 1M context at $0.10/1M
  • Blazing 190+ tokens/sec
  • Generous free tier on Google AI Studio
  • Multimodal native
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