GPT-4 Turbo vs Gemini 2.5 Pro

Performance benchmarks + pricing comparison — updated April 2026

GPT-4 Turbo

OpenAI

Previous generation high-performance model. Good for complex reasoning tasks.

Input$10.00/M
Output$30.00/M
Context128K tokens
Best ForComplex reasoning, data extraction, analysis
Benchmark70/100

Gemini 2.5 Pro

Google

Google's most capable model. Strong coding, multimodal understanding, and very competitive pricing.

Input$1.25/M
Output$10.00/M
Context1M tokens
Best ForLong document analysis, coding, multimodal tasks

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGPT-4 TurboGemini 2.5 ProSavings
Small Script (1K lines) $1.25 $0.34 Gemini 2.5 Pro saves $0.91 (73%)
Medium Feature (10K lines) $9.50 $2.44 Gemini 2.5 Pro saves $7.06 (74%)
Large Project (50K lines) $47.50 $12.19 Gemini 2.5 Pro saves $35.31 (74%)
Code Review (5K lines) $2.50 $0.47 Gemini 2.5 Pro saves $2.03 (81%)

Verdict

Gemini 2.5 Pro wins on both price and performance — $1.25/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models