AnthropicClaude Sonnet 5VSGoogleGemini 3.5 Flash Lite

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

This matchup represents a clear tradeoff between peak intelligence and budget efficiency. Claude Sonnet 5 is noticeably superior (holding a 8.0% average lead in benchmarks), but it carries a significant 4.7x price premium. Choose Claude Sonnet 5 if you need top-tier reasoning or code debugging, but for high-volume pipelines, Gemini 3.5 Flash Lite is the smarter business decision.

Was this recommendation helpful?

Model Specs

Claude Sonnet 5

Website

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+9.0%)

63.2%

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)Winner (+7.1%)

91.1%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)

$4.00Input: $2.00 | Output: $10.00

Context Window

1.05M tokens

Model Specs

Gemini 3.5 Flash Lite

Website

Benchmarks & Scores

Coding (swe-bench-pro)

54.2%

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)

84%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)4.7x cheaper

$0.85Input: $0.30 | Output: $2.50

Context Window

1.05M tokens

Read our data collection methodology

Frequently Asked Questions about Claude Sonnet 5 vs Gemini 3.5 Flash Lite

Gemini 3.5 Flash Lite is cheaper than Claude Sonnet 5. Gemini 3.5 Flash Lite has a blended cost of $0.85/1M tokens, which is about 4.7x cheaper than Claude Sonnet 5 at $4.00/1M tokens.

Claude Sonnet 5 is better for coding tasks on this benchmark. It scores 63.2% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to Gemini 3.5 Flash Lite which scores 54.2%.

Related Matchups

Explore similar comparisons for Claude Sonnet 5 and Gemini 3.5 Flash Lite.

Browse More Comparisons

AnthropicClaude Sonnet 5

OpenAIGPT-5.5

Compare Specs

GoogleGemini 3.5 Flash Lite

OpenAIGPT-5.6 Sol

Compare Specs

AnthropicClaude Sonnet 5

OpenAIGPT-5.6 Terra

Compare Specs

Do you want to find a model for your constraints?

Use our interactive model finder to filter LLMs by reasoning capability, coding performance, cost, and context length.

Open Model Finder