Google Gemini 1.5 Pro vs OpenAI GPT-4.5

Name: Google Gemini 1.5 Pro
Brand: Google
SKU: gemini-1-5-pro

Looking for an honest Google Gemini 1.5 Pro vs OpenAI GPT-4.5 comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Google Gemini 1.5 Pro comes out ahead 70/100 to 51/100 — a 19-point gap. The widest gap is in battery life, where the Google Gemini 1.5 Pro pulls noticeably ahead.

WINNER

Google

Gemini 1.5 Pro

70/100

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OpenAI

GPT-4.5

51/100

Try Free →API Docs →

AI Matrix

Google Gemini 1.5 Pro clearly outperforms the OpenAI GPT-4.5 in the ai language models category, especially in value, scoring 70 vs 51. If you want the better overall ai language models, Google Gemini 1.5 Pro is the recommended choice.

Reviewed by VersusMatrix Editorial Team|Our methodology

4 Reasons Why Google Gemini 1.5 Pro Is Better

1.Better display rating: 32 vs 11
2.Better battery score: 100 vs 12
3.Better value score: 94 vs 0
4.Higher overall score: 70 vs 51

Spec Comparison

Score Breakdown

Google Gemini 1.5 ProOpenAI GPT-4.5

Benchmark (MMLU)30% weight

OpenAI GPT-4.5 Winner

Cost Efficiency20% weight

Google Gemini 1.5 Pro Winner

Google Gemini 1.5 Pro

Winner

✓ Pros

●Better display score
●Better battery score
●Better value for money

✗ Cons

●Lower camera score
●Lower performance score

OpenAI GPT-4.5

✓ Pros

●Higher performance score
●Better camera score
●Better design score

✗ Cons

●Higher price relative to value
●Weaker battery score

💰 Token Pricing (per 1M tokens)

Lower cost = better value. Free = open-source self-hosted.

Metric	1.5 Pro	OpenAI GPT-4.5
Input (Prompt)	✓$1.25/1M	$75.00/1M
Output (Completion)	✓$5.00/1M	$150.00/1M
Open Source	Proprietary	Proprietary

⚡ Context Window & Speed

Context Window (tokens)

1.5 Pro1M

OpenAI GPT-4.5128K

Metric	1.5 Pro	OpenAI GPT-4.5
Max Output	8,192 tok	✓16,384 tok
Speed	✓110 tok/s	50 tok/s
Time to First Token	✓700ms	900ms
Languages	40+	✓50+

📊 Benchmark Scores

Higher is better. Industry-standard AI evaluation benchmarks.

1.5 Pro

OpenAI GPT-4.5

MMLU (Knowledge)

85.9|90.0

1.5 Pro

OpenAI GPT-4.5

HumanEval (Coding)

84.1|88.0

1.5 Pro

OpenAI GPT-4.5

MATH (Mathematics)

67.7|78.0

1.5 Pro

OpenAI GPT-4.5

GPQA (Expert Q&A)

46.2|72.0

1.5 Pro

OpenAI GPT-4.5

Chatbot Arena ELO

1287.0|1370.0

1.5 Pro

OpenAI GPT-4.5

🔧 Capabilities

Feature	1.5 Pro	OpenAI GPT-4.5
Reasoning / Chain-of-Thought	✕	✕
Vision (Image Input)	✓	✓
Audio Input	✓	✕
Video Input	✓	✕
Image/Audio Output	✕	✕
Function Calling / Tools	✓	✓
JSON Mode	✓	✓
Real-time Web Access	✕	✕
Fine-tuning Support	✕	✕
Batch API	✓	✓
Streaming	✓	✓
Open Source	✕	✕

ℹ️ Model Details

Field	1.5 Pro	OpenAI GPT-4.5
Provider	Google	OpenAI
Knowledge Cutoff	2023-11	2024-09
Best For	long contextdocument analysisvideogeneral	creative writingemotional intelligenceconversationnuanced tasks

Who Should Buy

Buy Google Gemini 1.5 Pro if…

Buy the Google Gemini 1.5 Pro if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.

Buy OpenAI GPT-4.5 if…

The OpenAI GPT-4.5 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Google Gemini 1.5 Pro vs OpenAI GPT-4.5 — FAQ

Google Gemini 1.5 Pro vs OpenAI GPT-4.5: which is better?

Is Google Gemini 1.5 Pro better than OpenAI GPT-4.5?

Yes, Google Gemini 1.5 Pro scores higher overall (75 vs 75).

Which is cheaper, Google Gemini 1.5 Pro or OpenAI GPT-4.5?

Check the latest prices using the buy links above.

Who should buy the Google Gemini 1.5 Pro?

Buy the Google Gemini 1.5 Pro if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.

Who should buy the OpenAI GPT-4.5?

The OpenAI GPT-4.5 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

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Google Gemini 2.0 Flash

Full Google Gemini 1.5 Pro review →Full OpenAI GPT-4.5 review →All Google AI Language Models →All OpenAI AI Language Models →

Reviewed by VersusMatrix Editorial Team

Last updated: April 25, 2026

Editorial guidelines

Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.

Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.