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Gemini 3.1 Flash Lite Preview vs DeepSeek V3.1

Detailed technical comparison between Gemini 3.1 Flash Lite Preview (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 Preview: 0 WinsvsDeepSeek V3.1: 6 Wins
Context Leader

Gemini 3.1 Flash Lite Preview

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 Preview

Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across...

View Gemini 3.1 Flash Lite Preview 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 Lite PreviewDeepSeek V3.1
ProviderGoogleDeepSeek
Context Window1,048,576 tokens🏆163,840 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apiself hostable
Production Stabilitybetastable
API AvailableYesYes
Released Date2026-03-032025-08-21

API Pricing Comparison

Input Price per Million Tokens

Gemini 3.1 Flash Lite Preview

$0.25

DeepSeek V3.1

$0.25

Output Price per Million Tokens

Gemini 3.1 Flash Lite Preview

$1.50

DeepSeek V3.1

$0.95

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

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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
75.6%vs80.0%+4.4% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆
HumanEvalPython coding & logic synthesis
68.4%vs78.2%+9.8% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆
MATHComplex mathematical problem solving
41.6%vs55.4%+13.8% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆
GPQAGraduate-level expert reasoning
29.0%vs40.8%+11.8% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆
HellaSwagCommonsense reasoning and inference
76.2%vs83.0%+6.8% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆
MT-BenchMulti-turn conversation flow quality
7.9%vs8.6%+0.7% DeepSeek V3.1
Gemini 3.1 Flash Lite Preview
DeepSeek V3.1 🏆

Gemini 3.1 Flash Lite Preview Quirks & Gotchas

No developer gotchas reported.

DeepSeek V3.1 Quirks & Gotchas

No developer gotchas reported.

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