Claude 3.5 Sonnet vs Gemini 1.5 Pro

Performance benchmarks + pricing comparison — updated April 2026

Claude 3.5 Sonnet

Anthropic

Previous generation Sonnet. Still excellent for coding tasks at the same price point.

Input$3.00/M
Output$15.00/M
Context200K tokens
Best ForCoding assistants, web development, data analysis
Benchmark72/100

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 3.5 SonnetGemini 1.5 ProSavings
Small Script (1K lines) $0.62 $0.19 Gemini 1.5 Pro saves $0.42 (69%)
Medium Feature (10K lines) $4.66 $1.44 Gemini 1.5 Pro saves $3.22 (69%)
Large Project (50K lines) $23.29 $7.19 Gemini 1.5 Pro saves $16.10 (69%)
Code Review (5K lines) $1.20 $0.34 Gemini 1.5 Pro saves $0.86 (71%)

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