Claude 3 Sonnet vs Gemini 1.5 Pro

Performance benchmarks + pricing comparison — updated April 2026

Claude 3 Sonnet

Anthropic

First generation Sonnet. Balanced performance for general tasks.

Input$3.00/M
Output$15.00/M
Context200K tokens
Best ForGeneral-purpose coding and reasoning
Benchmark65/100

Gemini 1.5 Pro

Google

Previous generation Google pro model. Good for general tasks.

Input$1.25/M
Output$5.00/M
Context1M tokens
Best ForGeneral-purpose tasks, document analysis

Cost Comparison by Scenario

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

ScenarioClaude 3 SonnetGemini 1.5 ProSavings
Small Script (1K lines) $0.55 $0.19 Gemini 1.5 Pro saves $0.36 (65%)
Medium Feature (10K lines) $4.05 $1.44 Gemini 1.5 Pro saves $2.61 (65%)
Large Project (50K lines) $20.25 $7.19 Gemini 1.5 Pro saves $13.06 (65%)
Code Review (5K lines) $0.90 $0.34 Gemini 1.5 Pro saves $0.56 (62%)

Verdict

Gemini 1.5 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