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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  2. Comparisons
  3. Google: Gemini 3.1 Flash Lite Preview vs GPT-4o mini

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Google: Gemini 3.1 Flash Lite Preview vs GPT-4o mini benchmark

In this head-to-head showdown, GPT-4o mini is more budget-friendly at $0.6/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Google: Gemini 3.1 Flash Lite Preview if your priority is peak reasoning, complex code generation, and top preference Elo. Choose GPT-4o mini if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Verified Head-to-Head Advantage Breakdown

3 direct benchmark disciplines evaluated across capability, speed, and cost

Google: Gemini 3.1 Flash Lite Preview (1)GPT-4o mini (2)
Google: Gemini 3.1 Flash Lite Preview
1 of 3 Wins
✓Context window
GPT-4o mini
2 of 3 Wins
✓Input price✓Output price
Google
Leads 1 of 3 metrics
Google: Gemini 3.1 Flash Lite Preview

Auto-discovered from OpenRouter (google/gemini-3.1-flash-lite-preview). Preview until a second source matches.

$1.5/1M out
OpenAI
Leads 2 of 3 metrics
GPT-4o mini

Legacy small OpenAI model. Useful as a cheap baseline.

4o MiniElo 1,272$0.6/1M out
Top Rival Showdowns for Google: Gemini 3.1 Flash Lite Preview
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderGPT-4o mini Wins

GPT-4o mini

$0.6 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Google: Gemini 3.1 Flash Lite Preview (1)vsGPT-4o mini (8)
Google: Gemini 3.1 Flash Lite Preview: 1W (11%)Overall: GPT-4o miniGPT-4o mini: 8W (89%)
← Google: Gemini 3.1 Flash Lite PreviewGPT-4o mini →
🏆GPT-4o mini(4/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Google: Gemini 3.1 Flash Lite PreviewvsGPT-4o mini
Preference Elo
—vs1,272
Coding Elo
—vs—
SWE-bench
—vs41.2%
LiveBench
—vs48.1%
GPQA Diamond
—vs60.1%
Google: Gemini 3.1 Flash Lite Preview: 0WGPT-4o mini: 4W
🏆GPT-4o mini(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Google: Gemini 3.1 Flash Lite PreviewvsGPT-4o mini
Output speed
—vs160 tok/s
Time to first token
—vs130 ms
Google: Gemini 3.1 Flash Lite Preview: 0WGPT-4o mini: 2W
🏆GPT-4o mini(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Google: Gemini 3.1 Flash Lite PreviewvsGPT-4o mini
Output price
$1.5/1Mvs$0.6/1M+$0.9/1M
Input price
$0.25/1Mvs$0.15/1M+$0.1/1M
Context window
1Mvs128k+921k
Google: Gemini 3.1 Flash Lite Preview: 1WGPT-4o mini: 2W

Side-by-Side Benchmark Matrix

Preference Elo
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini1,272
lmarena · Aug 17, 2026
LiveBench
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini48.1%
livebench · Aug 17, 2026
SWE-bench
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini41.2%
swebench · Aug 17, 2026
GPQA Diamond
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini60.1%
seed-bootstrap · Aug 1, 2026
Time to first token
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini130 ms
seed-bootstrap · Aug 1, 2026
Output speed
Google: Gemini 3.1 Flash Lite Preview—
GPT-4o mini160 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$0.1/1M
Google: Gemini 3.1 Flash Lite Preview$0.25/1M
openrouter · Aug 17, 2026
GPT-4o mini$0.15/1M
openrouter · Aug 17, 2026
Output price+$0.9/1M
Google: Gemini 3.1 Flash Lite Preview$1.5/1M
openrouter · Aug 17, 2026
GPT-4o mini$0.6/1M
openrouter · Aug 17, 2026
Context window+921k
Google: Gemini 3.1 Flash Lite Preview1M
openrouter · Aug 17, 2026
GPT-4o mini128k
openrouter · Aug 17, 2026
BenchmarkGoogle: Gemini 3.1 Flash Lite PreviewGPT-4o miniAdvantage Delta
Preference Elo—
1,272
lmarena · Aug 17, 2026
—
LiveBench—
48.1%
livebench · Aug 17, 2026
—
SWE-bench—
41.2%
swebench · Aug 17, 2026
—
GPQA Diamond—
60.1%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
130 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
160 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$0.25/1M
openrouter · Aug 17, 2026
$0.15/1M
openrouter · Aug 17, 2026
+$0.1/1M
Output price
$1.5/1M
openrouter · Aug 17, 2026
$0.6/1M
openrouter · Aug 17, 2026
+$0.9/1M
Context window
1M
openrouter · Aug 17, 2026
128k
openrouter · Aug 17, 2026
+921k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 54% with GPT-4o mini
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Google: Gemini 3.1 Flash Lite Preview$31.25 / mo
In: $8.75Out: $22.5
GPT-4o mini$14.25 / mo
In: $5.25Out: $9
Estimated Cost Delta

GPT-4o mini is estimated to save $17.00/month ($204/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    GPT-4o mini:Pick GPT-4o mini when you are optimizing output cost.
  • 2
    Google: Gemini 3.1 Flash Lite Preview:Pick Google: Gemini 3.1 Flash Lite Preview for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGPT-4o mini

Lower output list price ($0.6/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGoogle: Gemini 3.1 Flash Lite Preview

Larger window (1M).

Screenshots / visionGPT-4o mini

GPT-4o mini is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatGPT-4o miniLower output list price ($0.6/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGGoogle: Gemini 3.1 Flash Lite PreviewLarger window (1M).
Screenshots / visionGPT-4o miniGPT-4o mini is the side marked multimodal in the catalog.
Community Sentiment

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Google

Google: Gemini 3.1 Flash Lite Preview

Elo n/a
SWE-bench—
Speed (tok/s)1M
Input / 1M Tokens$0.25/1M
Output / 1M Tokens$1.5/1M
OpenAI

GPT-4o mini

Elo 1,272
SWE-bench41.2%
Speed (tok/s)160 tok/s
Input / 1M Tokens$0.15/1M
Output / 1M Tokens$0.6/1M

Frequently Asked Questions

Which is better overall, Google: Gemini 3.1 Flash Lite Preview or GPT-4o mini?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Google: Gemini 3.1 Flash Lite Preview or GPT-4o mini?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
GPT-4o mini output tokens are $0.6/1M versus $1.5/1M. Input prices and retry rates still move the real bill.
Which is faster, Google: Gemini 3.1 Flash Lite Preview or GPT-4o mini?
We do not have TTFT for both models.
Which has the larger context window?
Google: Gemini 3.1 Flash Lite Preview accepts 1M tokens versus 128k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Google: Gemini 3.1 Flash Lite Preview and GPT-4o mini Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Google: Gemini 3.1 Flash Lite Preview matchups →|All GPT-4o mini matchups →
GPT-4o mini vs OpenAI o1-mini (next gpt-mini)GPT-5 vs GPT-4o miniGemini 3 Pro vs GPT-4o miniGemini 3 Flash vs GPT-4o miniGPT-4.5 Orion vs GPT-4o miniGemini 2.0 Flash Thinking vs GPT-4o mini