Gemini 2.5 Pro vs GPT-5.4 mini

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

GPT-5.4 mini by OpenAI wins on 8 of 9 benchmarks against Gemini 2.5 Pro by Google, which leads on 1. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.

Category-by-Category Breakdown

General Intelligence: In general intelligence, GPT-5.4 mini scores 24.6 on AA Intelligence Index compared to Gemini 2.5 Pro's 16.7.

Coding: In coding, GPT-5.4 mini scores 56.1 on AA Coding Index compared to Gemini 2.5 Pro's 33.3.

Reasoning: In reasoning, GPT-5.4 mini scores 83.7% on GPQA Diamond compared to Gemini 2.5 Pro's 79.9%, while GPT-5.4 mini scores 19.7 on AA Agentic Index compared to Gemini 2.5 Pro's 3.5, while GPT-5.4 mini scores 63.0% on τ²-Bench Airline compared to Gemini 2.5 Pro's 61.3%.

Context: In context, Gemini 2.5 Pro scores 1.0M on Context Length compared to GPT-5.4 mini's 400K.

Pricing Comparison

Gemini 2.5 Pro costs $1.3/1M input tokens and $10.0/1M output tokens, while GPT-5.4 mini costs $0.75/1M input and $4.5/1M output. GPT-5.4 mini is the more affordable option for API usage.

Verdict

GPT-5.4 mini leads across the board in affordability, making it the stronger overall choice in this comparison.

Gemini 2.5 Pro vs GPT-5.4 mini — FAQ

Which is better, Gemini 2.5 Pro or GPT-5.4 mini?

GPT-5.4 mini wins on more benchmarks overall (8 vs 1). However, the best choice depends on your specific needs — each model excels in different areas.

How does Gemini 2.5 Pro compare to GPT-5.4 mini for coding?

SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.

Is Gemini 2.5 Pro cheaper than GPT-5.4 mini?

Yes, GPT-5.4 mini is cheaper. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens. GPT-5.4 mini costs $0.75/1M input and $4.5/1M output tokens.

Which is faster, Gemini 2.5 Pro or GPT-5.4 mini?

Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.

What benchmarks does the Gemini 2.5 Pro vs GPT-5.4 mini comparison cover?

This comparison covers 9 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, AA Intelligence Index, AA Coding Index, AA Agentic Index, Cached Input Cost, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.