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Back to models

Data points: 62

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for Gemini 3 Pro Image and GPT-5.2, before the detailed comparison sheet.

Decision read

GPT-5.2

GPT-5.2 currently has the stronger profile, with verified wins split 0 to 4.

Evidence depth

62 data points

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

Selection signal

Start with GPT-5.2

The charts below split 9 high-signal samples across speed, scores, and audit health.

Model compare

Gemini 3 Pro Image vs GPT-5.2

gemini-3-pro-image-vs-gpt-5-2

Model A

Gemini

Gemini 3 Pro Image

Model B

OpenAI

GPT-5.2

Overall leaderContenderLeading
Verified metric wins0 wins4 wins
Where it leadsNo dataCheapest input price, Free providers, Provider coverage, Recent tests
Model metadataGemini 3 Pro Image exposes 65.5K tokens; notable signals: Text input, Image input, Text output, Image output.GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperGoogleOpenAI
Context window65.5K tokens128K tokens
Max output32.8K tokens16.4K tokens
ReleasedNov 2025Dec 2025
Modalities

Input

ImageText

Output

ImageText

Input

FileImageText

Output

Text
Features
Text inputImage inputText outputImage outputStructured outputsJSON modeReasoning
Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode
ParametersNo dataNo data
TokenizerGeminiGPT
Knowledge cutoffNo dataNo data
OpenRouter IDgoogle/gemini-3-pro-image-previewopenai/gpt-5.2-chat
ReferencesNo dataNo data

Benchmark score comparison

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

Metric
GeminiGemini 3 Pro Image
OpenAIGPT-5.2
No shared benchmark metrics are available yet.

API audit comparison

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

Provider
GeminiGemini 3 Pro Image
OpenAIGPT-5.2
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
GeminiGemini 3 Pro Image
OpenAIGPT-5.2
N1N15 tests
Gemini

Gemini 3 Pro Image

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

56 tok/s / 1798ms

input / output

No data

PackyAPI10 tests
Gemini

Gemini 3 Pro Image

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

94 tok/s / 11492ms

input / output

No data

ModelPool5 tests
Gemini

Gemini 3 Pro Image

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

64 tok/s / 5256ms

input / output

No data

Rnglg2 API5 tests
Gemini

Gemini 3 Pro Image

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

55 tok/s / 1434ms

input / output

No data

Yun API5 tests
Gemini

Gemini 3 Pro Image

gemini-3-pro-image-preview

speed / latency

N/A / N/A

input / output

$0.021/M / $0.021/M

OpenAI

GPT-5.2

gpt-5.2-chat-2025-12-11

speed / latency

32 tok/s / 1965ms

input / output

$10.27/M / $10.27/M

ZEN-AI VIP
Gemini

Gemini 3 Pro Image

gemini-3-pro-image-preview-c

speed / latency

No data

input / output

$0.0033/M / $0.0033/M

OpenAI

GPT-5.2

gpt-5.2-xhigh

speed / latency

No data

input / output

$0.072/M / $0.575/M

CHB API
Gemini

Gemini 3 Pro Image

gemini-3-pro-image

speed / latency

No data

input / output

$0.0041/M / $0.0041/M

OpenAI

GPT-5.2

gpt-5.2-medium

speed / latency

No data

input / output

$0.024/M / $0.192/M

10dian-API
Gemini

Gemini 3 Pro Image

gemini-3-pro-image-preview

speed / latency

No data

input / output

$0.110/M / $0.110/M

OpenAI

GPT-5.2

gpt-5.2

speed / latency

No data

input / output

$0.010/M / $0.010/M

0CHAT
Gemini

Gemini 3 Pro Image

gemini-3-pro-image-preview

speed / latency

No data

input / output

$0.012/M / $0.012/M

OpenAI

GPT-5.2

gpt-5.2

speed / latency

No data

input / output

$0.059/M / $0.470/M

When to choose each model

This report only uses LMSpeed data for Gemini 3 Pro Image and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
GeminiGemini 3 Pro Image
OpenAIGPT-5.2
When to choose each model

Gemini 3 Pro Image

Gemini 3 Pro Image does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing.

GPT-5.2

GPT-5.2 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests.

FAQ

TL;DR: GPT-5.2 leads across 62 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 4 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.

Related compare reports

Continue from Gemini 3 Pro Image vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.

GeminiGemini 3 Pro Image vs GPT-5.44 verified data pointsClaudeClaude Opus 4.6 vs Gemini 3 Pro Image4 verified data pointsGeminiGemini 3 Pro Image vs GPT-54 verified data pointsGeminiGemini 2.5 Pro vs Gemini 3 Pro Image4 verified data points

Data as of Jun 13, 2026, 05:51 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.