Sonnet vs GPT-4o vs Gemini Pro (mid tier)

The workhorses that most teams default to.

Most production AI work runs on the mid-tier flagship of one of these labs. Claude Sonnet 4.5, GPT-4o, and Gemini 2.5 Pro all clear the quality bar for general work; the choice usually comes down to your existing API contracts, latency, and which one your team trusts most after a week of trials.

OpenAI: GPT-4o
openai
Context
128K
Max output
16,384
Input
$2.50/Mtok
Output
$10.00/Mtok
Modalities
text, image, file

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