Gemini 2.5 Flash-Lite
Gemini 3.1 Pro
Decision Recommendation
⚖️ Editorial Verdict: In our analysis, Gemini 3.1 Pro is the premium intelligence choice, scoring 54.2% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Gemini 2.5 Flash-Lite is 25.7x cheaper to run and delivers 2.6x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Gemini 2.5 Flash-Lite offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Gemini 3.1 Pro fully justifies the cost.
Gemini 2.5 Flash-Lite
Benchmarks & Scores
Cost & Performance
Gemini 3.1 Pro
Benchmarks & Scores
Cost & Performance
Frequently Asked Questions
Gemini 2.5 Flash-Lite is cheaper than Gemini 3.1 Pro. Gemini 2.5 Flash-Lite has a blended cost of $0.17/1M tokens, which is about 25.7x cheaper than Gemini 3.1 Pro at $4.50/1M tokens.
Gemini 2.5 Flash-Lite is faster than Gemini 3.1 Pro. Gemini 2.5 Flash-Lite generates 280 tokens per second (tps) compared to Gemini 3.1 Pro which generates 109 tokens per second.
Gemini 3.1 Pro is better for coding tasks. It scores 54.2% on coding evaluations (swe-bench-pro) compared to Gemini 2.5 Flash-Lite which scores N/A.
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