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Gemini 3.5 Flash-Lite vs Gemini 2.5 Flash

Detailed technical comparison between Gemini 3.5 Flash-Lite (Google) and Gemini 2.5 Flash (Google). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Gemini 3.5 Flash-Lite: 0 WinsvsGemini 2.5 Flash: 0 Wins
Context Leader

Tie

Equal Capacity
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Tie

Equal Pricing
Googleactive

Gemini 3.5 Flash-Lite

Gemini 3.5 Flash-Lite is a high-efficiency model from Google with upgraded agentic capabilities. It is suited for subagents that execute focused tasks within complex, multi-agent workflows.

View Gemini 3.5 Flash-Lite Full Specs →
Googleactive

Gemini 2.5 Flash

Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. It includes built-in "thinking" capabilities, enabling it to provide responses with greater...

View Gemini 2.5 Flash Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGemini 3.5 Flash-LiteGemini 2.5 Flash
ProviderGoogleGoogle
Context Window1,048,576 tokens1,048,576 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitybetabeta
API AvailableYesYes
Released Date2026-07-212025-06-17

API Pricing Comparison

Input Price per Million Tokens

Gemini 3.5 Flash-Lite

$0.30

Gemini 2.5 Flash

$0.30

Output Price per Million Tokens

Gemini 3.5 Flash-Lite

$2.50

Gemini 2.5 Flash

$2.50

💡 Cost Ratio: Both models offer identical input token pricing ($0.30 / MTok).

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
73.2%vs73.2%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash
HumanEvalPython coding & logic synthesis
69.4%vs69.4%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash
MATHComplex mathematical problem solving
42.6%vs42.6%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash
GPQAGraduate-level expert reasoning
30.0%vs30.0%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash
HellaSwagCommonsense reasoning and inference
77.2%vs77.2%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash
MT-BenchMulti-turn conversation flow quality
8.0%vs8.0%+0.0% Gemini 2.5 Flash
Gemini 3.5 Flash-Lite
Gemini 2.5 Flash

Gemini 3.5 Flash-Lite Quirks & Gotchas

No developer gotchas reported.

Gemini 2.5 Flash Quirks & Gotchas

No developer gotchas reported.

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