ClaudevsGemini

Claude Opus 5 vs Gemini 3.5 Flash-Lite

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Claude Opus 5

Flagship

Gemini 3.5 Flash-Lite

Fast / Budget
Input $/MTok
$5.00
$0.30
Output $/MTok
$25.00
$2.50
Cache discount
90% off
90% off
Context
1,000K
1,000K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
55
Code Review
0
vs
52
Summarization
0
vs
79
Q&A
0
vs
78
Extraction
0
vs
83
Reasoning
0
vs
50
Classification
0
vs
85
Creative Writing
0
vs
45
Claude Opus 5
Gemini 3.5 Flash-Lite

Guidance

When to use Claude Opus 5 vs Gemini 3.5 Flash-Lite

Choose Claude Opus 5 when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose Gemini 3.5 Flash-Lite when...

  • -Cost matters: 94% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 5
Gemini 3.5 Flash-Lite
100K tokens
$1.10
$0.10Cheaper
1M tokens
$11.00
$0.96Cheaper
10M tokens
$110.00
$9.60Cheaper

FAQ

When should I use Claude Opus 5 instead of Gemini 3.5 Flash-Lite?

Claude Opus 5 and Gemini 3.5 Flash-Lite perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Gemini 3.5 Flash-Lite cheaper than Claude Opus 5?

Yes. Gemini 3.5 Flash-Lite input costs $0.30/MTok vs $5.00/MTok for Claude Opus 5, saving 94% on input.

What are the context window sizes for Claude Opus 5 and Gemini 3.5 Flash-Lite?

Claude Opus 5 has a 1,000K token context window. Gemini 3.5 Flash-Lite has a 1,000K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.