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Back to models

Data points: 55

On this page

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

Key Takeaways

The readout for Gemini 2.5 Pro and GPT-4o Transcribe Diarize, before the detailed comparison sheet.

Decision read

Gemini 2.5 Pro

Gemini 2.5 Pro currently has the stronger profile, with verified wins split 4 to 0.

Evidence depth

55 data points

Includes 0 benchmark rows, 0 audit samples, and 6 provider examples.

Selection signal

Start with Gemini 2.5 Pro

The charts below split 6 high-signal samples across speed, scores, and audit health.

Model compare

Gemini 2.5 Pro vs GPT-4o Transcribe Diarize

gemini-2-5-pro-vs-gpt-4o-transcribe-diarize

Model A

Gemini

Gemini 2.5 Pro

Model B

OpenAI

GPT-4o Transcribe Diarize

Overall leaderLeadingContender
Verified metric wins4 wins0 wins
Where it leadsCheapest input price, Free providers, Provider coverage, Recent testsNo data
Model metadataGemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input.No OpenRouter metadata is available yet for this model.
DeveloperGoogleOpenAI
Context window1.0M tokensNo data
Max output65.5K tokensNo data
ReleasedJun 2025No data
Modalities

Input

TextImageFileAudiovideo

Output

Text
No data
Features
Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning
None listed
ParametersNo dataNo data
TokenizerGeminiNo data
Knowledge cutoff2025-01-31No data
OpenRouter IDgoogle/gemini-2.5-proNo data
ReferencesNo dataNo data

Benchmark score comparison

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

Metric
GeminiGemini 2.5 Pro
OpenAIGPT-4o Transcribe Diarize
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 2.5 Pro
OpenAIGPT-4o Transcribe Diarize
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 2.5 Pro
OpenAIGPT-4o Transcribe Diarize
AASS API0 tests
Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-4o Transcribe Diarize

speed / latency

N/A / N/A

input / output

No data

AIsa0 tests
Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-4o Transcribe Diarize

speed / latency

N/A / N/A

input / output

No data

AI发财网0 tests
Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-4o Transcribe Diarize

speed / latency

N/A / N/A

input / output

No data

GuaiHub0 tests
Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-4o Transcribe Diarize

speed / latency

N/A / N/A

input / output

No data

KFCV500 tests
Gemini

Gemini 2.5 Pro

gemini-2.5-pro-preview-05-06

speed / latency

N/A / N/A

input / output

$0.171/M / $1.37/M

OpenAI

GPT-4o Transcribe Diarize

gpt-4o-transcribe-diarize

speed / latency

N/A / N/A

input / output

$10.27/M / $41.10/M

ZEN-AI VIP
Gemini

Gemini 2.5 Pro

gemini-2.5-pro

speed / latency

No data

input / output

$0.051/M / $0.411/M

OpenAI

GPT-4o Transcribe Diarize

gpt-4o-transcribe-diarize

speed / latency

No data

input / output

$0.103/M / $0.411/M

When to choose each model

This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-4o Transcribe Diarize: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
GeminiGemini 2.5 Pro
OpenAIGPT-4o Transcribe Diarize
When to choose each model

Gemini 2.5 Pro

Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests.

GPT-4o Transcribe Diarize

GPT-4o Transcribe Diarize does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing.

FAQ

TL;DR: Gemini 2.5 Pro leads across 55 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 2.5 Pro vs GPT-4o Transcribe Diarize into nearby model comparisons with enough verified LMSpeed data.

GeminiGemini 2.5 Pro vs GPT-5.46 verified data pointsClaudeClaude Opus 4.6 vs Gemini 2.5 Pro6 verified data pointsGeminiGemini 2.5 Pro vs GPT-56 verified data pointsGeminiGemini 2.5 Pro vs GPT-5.26 verified data points

Data as of Jun 13, 2026, 04:42 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.