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Gemini 3.1 Flash Lite vs DeepSeek V3.1

Detailed technical comparison between Gemini 3.1 Flash Lite (Google) and DeepSeek V3.1 (DeepSeek). 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 3.1 Flash Lite: 0 WinsvsDeepSeek V3.1: 6 Wins
Context Leader

Gemini 3.1 Flash Lite

1,048,576 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Tie

Equal Pricing
Googleactive

Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads. It supports text, image, video, audio, and PDF inputs, and is designed for lightweight agentic...

View Gemini 3.1 Flash Lite Full Specs →
DeepSeekactive

DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

View DeepSeek V3.1 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGemini 3.1 Flash LiteDeepSeek V3.1
ProviderGoogleDeepSeek
Context Window1,048,576 tokens🏆163,840 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apiself hostable
Production StabilityBeta Access (est.)Stable GA (est.)
API AvailableYesYes
Released Date2026-05-072025-08-21

API Pricing Comparison

Input Price per Million Tokens

Gemini 3.1 Flash Lite

$0.25

DeepSeek V3.1

$0.25

Output Price per Million Tokens

Gemini 3.1 Flash Lite

$1.50

DeepSeek V3.1

$0.95

💡 Cost Ratio: Both models offer identical input token pricing ($0.25 / MTok).

Want to test both models live?

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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
72.4%vs80.0%+7.6% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆
HumanEvalPython coding & logic synthesis
68.6%vs78.2%+9.6% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆
MATHComplex mathematical problem solving
41.8%vs55.4%+13.6% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆
GPQAGraduate-level expert reasoning
29.2%vs40.8%+11.6% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆
HellaSwagCommonsense reasoning and inference
76.4%vs83.0%+6.6% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆
MT-BenchMulti-turn conversation flow quality
7.9%vs8.6%+0.7% DeepSeek V3.1
Gemini 3.1 Flash Lite
DeepSeek V3.1 🏆

Gemini 3.1 Flash Lite Quirks & Gotchas

No developer gotchas reported.

DeepSeek V3.1 Quirks & Gotchas

No developer gotchas reported.

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