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GPT-4o vs Gemini 2.5 Pro: 2026 API Cost, Prompt Caching & SaaS Gross Margin Benchmark

This story is from 2026-10-20. It is preserved in the archive; the latest stories are on the live feed.

Choosing between GPT-4o ( openai/gpt-4o ) and Gemini 2.5 Pro ( google/gemini-2.5-pro-preview-03-25 ) in production goes far beyond public leaderboard scores—for B2B AI SaaS teams, the real bottleneck is P95 unit economics, prefix prompt caching, and multi-provider routing . Using live pricing synce…

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  1. 2026-10-20 04:02 · DEV Community — AI
    GPT-4o vs Gemini 2.5 Pro: 2026 API Cost, Prompt Caching & SaaS Gross Margin Benchmark

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