Claude 3 Opus vs Gemini 2.0 Flash

Performance benchmarks + pricing comparison — updated April 2026

Claude 3 Opus

Anthropic

First generation Opus. Highest reasoning capability in the Claude 3 family.

Input$15.00/M
Output$75.00/M
Context200K tokens
Best ForDeep analysis, complex coding tasks
Benchmark78/100

Gemini 2.0 Flash

Google

Cheapest Google model. Fast responses for simple coding tasks.

Input$0.100/M
Output$0.400/M
Context1M tokens
Best ForSimple tasks, fast responses, cost optimization

Cost Comparison by Scenario

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

ScenarioClaude 3 OpusGemini 2.0 FlashSavings
Small Script (1K lines) $2.77 $0.02 Gemini 2.0 Flash saves $2.76 (99%)
Medium Feature (10K lines) $20.25 $0.12 Gemini 2.0 Flash saves $20.14 (99%)
Large Project (50K lines) $101.25 $0.58 Gemini 2.0 Flash saves $100.67 (99%)
Code Review (5K lines) $4.50 $0.03 Gemini 2.0 Flash saves $4.47 (99%)

Verdict

Gemini 2.0 Flash wins on both price and performance — $0.100/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