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Gemini 3 Flash vs GPT-4

The readout for Gemini 3 Flash and GPT-4, before the detailed comparison sheet.

Key Takeaways

Weighted outcome: Gemini 3 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

Decision read

Gemini 3 Flash

Gemini 3 Flash has the higher weighted result; Model A / B score 96 to 4.

Evidence depth

75 data points

Includes 5 benchmark rows, 0 audit samples, and 9 provider examples.

Selection signal

Start with Gemini 3 Flash

The charts below split 14 high-signal samples across speed, scores, and audit health.

Change comparison

Switch either side of this report to compare another model with the same LMSpeed data pipeline.

Select a different model to open a new comparison URL.

Comparison sheet

This report only uses LMSpeed data for Gemini 3 Flash and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Model compare
Gemini 3 Flash
GPT-4
Overall leaderLeadingContender
Weighted overall score96.0 pts4.0 pts
Benchmark category leads3 categories0 categories
Operational advantagesCheapest input price, Average speed, Free providers, Provider coverageFirst-token latency
Context window1.0M tokens8.2K tokens
Max output65.5K tokens4.1K tokens
Modalities

Input

TextImageFileAudiovideo

Output

Text

Input

Text

Output

Text
Features
Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning
Text inputText outputTool callingStructured outputsJSON mode

The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.

Model metadata

Model compare
Gemini 3 Flash
GPT-4
DeveloperGoogleOpenAI
ReleasedDec 2025May 2023
ParametersNo dataNo data
TokenizerGeminiGPT
Knowledge cutoffNo data2021-09-30
OpenRouter IDgoogle/gemini-3-flash-previewopenai/gpt-4
ReferencesNo dataNo data

When to choose each model

This report only uses LMSpeed data for Gemini 3 Flash and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Gemini 3 Flash

Gemini 3 Flash is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed, Free providers, Provider coverage).

GPT-4

GPT-4 has these operational advantages: First-token latency.

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Category performance

Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.

Model A coverage
8 / 8
Model B coverage
3 / 8
Shared
3 shared categories

Avg. score

Gemini 3 Flash

51.3

Avg. score

GPT-4

41.2

Agents

Gemini 3 Flash

Gemini 3 Flash43.1
GPT-4-

Coding

Gemini 3 Flash leads by 6.5

Gemini 3 Flash52.7
GPT-446.2

Reasoning

Gemini 3 Flash leads by 15.2

Gemini 3 Flash52
GPT-436.8

Knowledge

Gemini 3 Flash

Gemini 3 Flash53.7
GPT-4-

Math

Gemini 3 Flash leads by 10.8

Gemini 3 Flash51.5
GPT-440.7

Multilingual

Gemini 3 Flash

Gemini 3 Flash58.5
GPT-4-

Multimodal

Gemini 3 Flash

Gemini 3 Flash50.9
GPT-4-

Instruction following

Gemini 3 Flash

Gemini 3 Flash47.9
GPT-4-

Professional benchmark details

Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.

Pricingverified

Input price

Gemini 3 Flash

winner

$0.500/M

Rank #85/186 · confidence 4

+$29.50/M

GPT-4

$30.00/M

Rank #184/186 · confidence 4

Pricingverified

Blended price

Gemini 3 Flash

winner

$1.13/M

Rank #97/186 · confidence 4

+$36.38/M

GPT-4

$37.50/M

Rank #184/186 · confidence 4

Pricingverified

Output price

Gemini 3 Flash

winner

$3.00/M

Rank #99/186 · confidence 4

+$57.00/M

GPT-4

$60.00/M

Rank #179/186 · confidence 4

Reasoningverified

MMLU-Pro

Gemini 3 Flash

winner

88.2%

Rank #7/129 · confidence 4

+32.0%

GPT-4

56.2%

Rank #121/129 · confidence 4

Reasoningverified

GPQA

Gemini 3 Flash

winner

81.2%

Rank #95/218 · confidence 4

+46.3%

GPT-4

34.9%

Rank #211/218 · confidence 4

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
Gemini 3 Flash
GPT-4
No completed audits are available from shared providers yet.

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
Gemini 3 Flash
GPT-4
N1N20 tests

Gemini 3 Flash

gemini-3-flash-preview

speed / latency

157 tok/s / 7994ms

input / output

$0.011/M/$0.065/M

GPT-4

gpt-4-1106-preview

speed / latency

N/A / N/A

input / output

$0.131/M/$0.392/M

Rnglg2 API10 tests

Gemini 3 Flash

speed / latency

160 tok/s / 6933ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Seamee API10 tests

Gemini 3 Flash

speed / latency

155 tok/s / 6071ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

CaMeL AI5 tests

Gemini 3 Flash

speed / latency

187 tok/s / 6133ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Gemini 3 Flash

speed / latency

287 tok/s / 4944ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Gemini 3 Flash

gemini-3-flash-preview-high

speed / latency

No data

input / output

$0/request

GPT-4

gpt-4

speed / latency

No data

input / output

$0/request

Gemini 3 Flash

gemini-3-flash-preview-c

speed / latency

No data

input / output

$0.0027/request

GPT-4

gpt-4-0125-preview

speed / latency

No data

input / output

$2.05/M/$4.11/M

Gemini 3 Flash

gemini-3-flash-preview

speed / latency

No data

input / output

$0.068/M/$0.411/M

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.011/request

Gemini 3 Flash

gemini-3-flash-preview

speed / latency

No data

input / output

$0.068/M/$0.411/M

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.011/request

FAQ

Weighted outcome: Gemini 3 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

Why is this comparison indexable?
It has 6 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.