Claude 3 Sonnet vs Gemini 2.5 Flash Lite

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 2.5 Flash Lite

Google

The most affordable Gemini model. Ultra-low cost for high-volume, simple coding and text tasks.

Input$0.037/M
Output$0.150/M
Context1M tokens
Best ForHigh-volume tasks, batch processing, cost-optimized pipelines

Cost Comparison by Scenario

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

ScenarioClaude 3 SonnetGemini 2.5 Flash LiteSavings
Small Script (1K lines) $0.55 <$0.01 Gemini 2.5 Flash Lite saves $0.55 (99%)
Medium Feature (10K lines) $4.05 $0.04 Gemini 2.5 Flash Lite saves $4.01 (99%)
Large Project (50K lines) $20.25 $0.22 Gemini 2.5 Flash Lite saves $20.03 (99%)
Code Review (5K lines) $0.90 $0.01 Gemini 2.5 Flash Lite saves $0.89 (99%)

Verdict

Gemini 2.5 Flash Lite wins on both price and performance — $0.037/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