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Gemini 3.5 Flash Lite vs o4 Mini

vs
o4 Mini

OpenAI

81#79
Signal-by-Signal Comparison
SignalGemini 3.5 Flash LiteDeltao4 Mini
Capabilities
100
--
100
Benchmarks
75
-10
85
Pricing
98
+2
96
Context window size
96
+11
84
Recency
100
+54
46
Output Capacity
80
-3
83
Overall Result
3 wins
of 6
2 wins
Gemini 3.5 Flash Lite wins 3 of 6 signals

Score History

Score History (25 data points)
Gemini 3.5 Flash Liteo4 Mini
Gemini 3.5 Flash Lite

76.9

current score

Leader

o4 Mini

right now

o4 Mini

81.4

current score

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

Gemini 3.5 Flash Lite

Google

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

o4 Mini

OpenAI

Per request$0.003300
Daily$11.00
Monthly$330.00
Annual$3960.00

Gemini 3.5 Flash Lite saves you $175.00/month

That's $2100.00/year compared to o4 Mini at your current usage level of 100K calls/month.

53% cheaper
Choose Gemini 3.5 Flash Lite for cost optimization

Gemini 3.5 Flash Lite pricing:
Input:$0.30/M tokens
Output:$2.50/M tokens
o4 Mini pricing:
Input:$1.10/M tokens
Output:$4.40/M tokens
Gemini 3.5 Flash Lite

Google

77

Composite Score

Winner
o4 Mini

OpenAI

81

Composite Score

Signal-by-Signal Comparison
MetricGemini 3.5 Flash Liteo4 MiniWinner
Overall Score
77
81
o4 Mini
Rank#112#79
o4 Mini
Quality Rank#112#79
o4 Mini
Adoption Rank#112#79
o4 Mini
Parameters------
Context Window1049K200K
Gemini 3.5 Flash Lite
Pricing$0.30/$2.50/M$1.10/$4.40/M--
Signal Scores
Capabilities
100
100
Gemini 3.5 Flash Lite
Benchmarks
75
85
o4 Mini
Pricing
98
96
Gemini 3.5 Flash Lite
Context window size
96
84
Gemini 3.5 Flash Lite
Recency
100
46
Gemini 3.5 Flash Lite
Output Capacity
80
83
o4 Mini
Benchmark Head-to-Head(11 benchmarks)
Gemini 3.5: 1o4 Mini: 0
Gemini 3.5
o4 Mini
Normalized 0-100%
MMLU-Pro
-83%
GPQA Diamond
-81.4%
MATH-500
-97.3%
HumanEval
-95%
SWE-bench Verified
-68.1%
AIME 2024
-93.4%
IFEval
-90%
BBH
-90.5%
Arena Elo
14591380
LiveBench
-72%
HLE
-18.08%
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 3.5 Flash LiteStrong Performer

Scores 77/100 (rank #112), placing it in the top 62% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
o4 MiniStrong Performer

Scores 81/100 (rank #79), placing it in the top 73% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 5-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose Gemini 3.5 Flash Lite when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose o4 Mini when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
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
o4 Mini
Input cost$1.10/M tokens
Output cost$4.40/M tokens
Cost per quality point$0.068
Est. monthly (1M tokens/day)$82.50

Gemini 3.5 Flash Lite offers 49% better value per quality point. At 1M tokens/day, you'd spend $42.00/month with Gemini 3.5 Flash Lite vs $82.50/month with o4 Mini - a $40.50 monthly difference.

Latency & Speed
Gemini 3.5 Flash LiteFaster
Speed score0/100
o4 Mini
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 3.5 Flash Lite

Customer support chatbot

Suitable for user-facing chat with competitive response times. Gemini 3.5 Flash Lite also offers lower per-token costs for high-volume support

Gemini 3.5 Flash Lite

Long document analysis

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

Gemini 3.5 Flash Lite

Batch data extraction

Lower output pricing ($2.50/M) reduces costs when processing thousands of records daily

Gemini 3.5 Flash Lite

Creative writing & content

Higher overall composite score (81/100) correlates with better nuance, coherence, and style in long-form content

o4 Mini

Image understanding & OCR

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

Gemini 3.5 Flash Lite
Which Should You Choose?
Our recommendation:
o4 Mini

o4 Mini has a moderate advantage with a 4.5-point lead in composite score. It wins on more signal dimensions, but Gemini 3.5 Flash Lite has specific strengths that could make it the better choice for certain workflows.

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 49% 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
o4 Mini
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityGemini 3.5 Flash Liteo4 Mini
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 3.5 Flash Lite

Google

Best Value
$3.54
estimated monthly cost

o4 Mini

OpenAI

$7.26
estimated monthly cost

Gemini 3.5 Flash Lite saves you $3.72/month

That's 51% cheaper than o4 Mini 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 3.5 Flash Liteo4 Mini
Context Window1.0M200K
Max Output Tokens65,536100,000
Open SourceNoNo
CreatedJul 21, 2026Apr 16, 2025
Last updated: 34m ago

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