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Gemini 3.1 Flash Lite vs Gemini 3.5 Flash-Lite

Signal-by-Signal Comparison
SignalGemini 3.1 Flash LiteDeltaGemini 3.5 Flash-Lite
Capabilities
100
--
100
Pricing
99
+1
98
Context window size
96
--
96
Recency
100
--
100
Output Capacity
80
--
80
Benchmarks
0
-75
75
Overall Result
1 wins
of 6
1 wins
It's a tie - both models win 1 signals each

Score History

Score History (12 data points)
Gemini 3.1 Flash LiteGemini 3.5 Flash-Lite
Gemini 3.1 Flash Lite

23.6

current score

Leader

Gemini 3.5 Flash-Lite

right now

Gemini 3.5 Flash-Lite

77

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Gemini 3.1 Flash Lite

Google

Best Value
Per request$0.001000
Daily$3.33
Monthly$100.00
Annual$1200.00

Gemini 3.5 Flash-Lite

Google

Per request$0.001550
Daily$5.17
Monthly$155.00
Annual$1860.00

Gemini 3.1 Flash Lite saves you $55.00/month

That's $660.00/year compared to Gemini 3.5 Flash-Lite at your current usage level of 100K calls/month.

35% cheaper
Choose Gemini 3.1 Flash Lite for cost optimization

Gemini 3.1 Flash Lite pricing:
Input:$0.25/M tokens
Output:$1.50/M tokens
Gemini 3.5 Flash-Lite pricing:
Input:$0.30/M tokens
Output:$2.50/M tokens
Gemini 3.1 Flash Lite

Google

24

Composite Score

Winner
Gemini 3.5 Flash-Lite

Google

77

Composite Score

Signal-by-Signal Comparison
MetricGemini 3.1 Flash LiteGemini 3.5 Flash-LiteWinner
Overall Score
24
77
Gemini 3.5 Flash-Lite
Rank#317#77
Gemini 3.5 Flash-Lite
Quality Rank#317#77
Gemini 3.5 Flash-Lite
Adoption Rank#317#77
Gemini 3.5 Flash-Lite
Parameters------
Context Window1049K1049K--
Pricing$0.25/$1.50/M$0.30/$2.50/M--
Signal Scores
Capabilities
100
100
Gemini 3.1 Flash Lite
Pricing
99
98
Gemini 3.1 Flash Lite
Context window size
96
96
Gemini 3.1 Flash Lite
Recency
100
100
Gemini 3.1 Flash Lite
Output Capacity
80
80
Gemini 3.1 Flash Lite
Benchmarks--
75
Gemini 3.5 Flash-Lite
Benchmark Head-to-Head(2 benchmarks)
Gemini 3.1: 0Gemini 3.5: 0
Gemini 3.1
Gemini 3.5
Normalized 0-100%
Arena Elo
-1460
HLE
8.64%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Gemini 3.1 Flash LiteLimited

Scores 24/100 (rank #317), placing it in the top -9% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Gemini 3.5 Flash-LiteStrong Performer

Scores 77/100 (rank #77), placing it in the top 74% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Gemini 3.5 Flash-Lite has a 53-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Gemini 3.1 Flash Lite when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving

Choose Gemini 3.5 Flash-Lite when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Gemini 3.1 Flash Lite
Input cost$0.25/M tokens
Output cost$1.50/M tokens
Cost per quality point$0.074
Est. monthly (1M tokens/day)$26.25
Gemini 3.5 Flash-LiteBest Value
Input cost$0.30/M tokens
Output cost$2.50/M tokens
Cost per quality point$0.036
Est. monthly (1M tokens/day)$42.00

Gemini 3.5 Flash-Lite offers 37% better value per quality point. At 1M tokens/day, you'd spend $26.25/month with Gemini 3.1 Flash Lite vs $42.00/month with Gemini 3.5 Flash-Lite - a $15.75 monthly difference.

Latency & Speed
Gemini 3.1 Flash LiteFaster
Speed score0/100
Gemini 3.5 Flash-Lite
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Gemini 3.1 Flash Lite

Customer support chatbot

Suitable for user-facing chat with competitive response times. Gemini 3.1 Flash Lite also offers lower per-token costs for high-volume support

Gemini 3.1 Flash Lite

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Gemini 3.1 Flash Lite

Batch data extraction

Lower output pricing ($1.50/M) reduces costs when processing thousands of records daily

Gemini 3.1 Flash Lite

Creative writing & content

Higher overall composite score (77/100) correlates with better nuance, coherence, and style in long-form content

Gemini 3.5 Flash-Lite

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Gemini 3.1 Flash Lite
Which Should You Choose?
Our recommendation:
Gemini 3.5 Flash-Lite

Gemini 3.5 Flash-Lite clearly outperforms Gemini 3.1 Flash Lite with a significant 53.4-point lead. For most general use cases, Gemini 3.5 Flash-Lite is the stronger choice. However, Gemini 3.1 Flash Lite may still excel in niche scenarios.

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 37% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Google

Consider for specialized use cases.

Capability Comparison
CapabilityGemini 3.1 Flash LiteGemini 3.5 Flash-Lite
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Gemini 3.1 Flash Lite

Google

Best Value
$2.25
estimated monthly cost

Gemini 3.5 Flash-Lite

Google

$3.54
estimated monthly cost

Gemini 3.1 Flash Lite saves you $1.29/month

That's 36% cheaper than Gemini 3.5 Flash-Lite at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGemini 3.1 Flash LiteGemini 3.5 Flash-Lite
Context Window1.0M1.0M
Max Output Tokens65,53665,536
Open SourceNoNo
CreatedMay 7, 2026Jul 21, 2026
Last updated: 46m ago

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