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Gemini 1.5 Pro vs GPT-4o mini

Gemini 1.5 Pro leads the LLM Stats Score 12.1 to 3.8. GPT-4o mini is 16.7x cheaper per token.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 1.5 Pro leads the overall LLM Stats Score 12.1 to 3.8, ranking #244 overall.

In the 8 individual benchmarks reported for both models, Gemini 1.5 Pro wins 6; this is a narrower head-to-head signal than the composite indexes.

On price, GPT-4o mini is roughly 16.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 1.5 Pro also accepts a larger context window (2,097,152 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 1.5 Pro

  • overall performance matters — it scores 12.1 and ranks #244 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 6 of 8 exact shared results
  • you process long inputs — it offers a 2,097,152 token context window

Choose GPT-4o mini

  • cost matters — it's about 16.7x cheaper per token
  • you want the most recent training data — it shipped Jul 2024

At a glance

The differences that matter most.

Gemini 1.5 Pro
Google
GPT-4o mini
OpenAI
Core performance indexes
LLM Stats Score
12.1
#244
3.8
#295
Reasoning
11.9
#237
4.2
#285
Coding
4.4
#202
-0.4
#236
Cost, coverage & limits
Benchmark wins
6 of 8
2 of 8
Input price
$2.50 / M
$0.15 / M
Output price
$10.00 / M
$0.60 / M
Context window
2,097,152
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 1.5 Pro
GPT-4o mini
Math
17.1#191
11.8#234
Vision
9.7#123
0.0#179
Multimodal
13.8#96
2.9#141
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for Gemini 1.5 Pro · 9 for GPT-4o mini

8 shared

Gemini 1.5 Pro outperforms in 6 benchmarks (GPQA, MATH, MathVista, MGSM, MMLU, MMMU), while GPT-4o mini is better at 2 benchmarks (DROP, HumanEval).

Gemini 1.5 Pro shows notably better performance in the majority of benchmarks.

Sat Sep 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

GPT-4o mini costs less

For input processing, Gemini 1.5 Pro ($2.50/1M tokens) is 16.7x more expensive than GPT-4o mini ($0.15/1M tokens).

For output processing, Gemini 1.5 Pro ($10.00/1M tokens) is 16.7x more expensive than GPT-4o mini ($0.60/1M tokens).

In conclusion, Gemini 1.5 Pro is more expensive than GPT-4o mini.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Sep 05 2026 • llm-stats.com
Google
Gemini 1.5 Pro
Input tokens$2.50
Output tokens$10.00
Best providerGoogle
OpenAI
GPT-4o mini
Input tokens$0.15
Output tokens$0.60
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 1.5 Pro accepts 2,097,152 input tokens compared to GPT-4o mini's 128,000 tokens. GPT-4o mini can generate longer responses up to 16,384 tokens, while Gemini 1.5 Pro is limited to 8,192 tokens.

Google
Gemini 1.5 Pro
Input2,097,152 tokens
Output8,192 tokens
OpenAI
GPT-4o mini
Input128,000 tokens
Output16,384 tokens
Sat Sep 05 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 1.5 Pro and GPT-4o mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 1.5 Pro

Text
Images
Audio
Video

GPT-4o mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 1.5 Pro

Proprietary

Closed source

GPT-4o mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Pro was released on 2024-05-01, while GPT-4o mini was released on 2024-07-18.

GPT-4o mini is 3 months newer than Gemini 1.5 Pro.

Gemini 1.5 Pro

May 1, 2024

2.3 years ago

GPT-4o mini

Jul 18, 2024

2.1 years ago

2mo newer

Knowledge Cutoff

When training data ends

Gemini 1.5 Pro has a knowledge cutoff of 2023-11-01, while GPT-4o mini has a cutoff of 2023-10-01.

Gemini 1.5 Pro has more recent training data (up to 2023-11-01), making it potentially better informed about events through that date compared to GPT-4o mini (2023-10-01).

Gemini 1.5 Pro

Nov 2023

1 mo newer
GPT-4o mini

Oct 2023

Provider Availability

Gemini 1.5 Pro is available from Google. GPT-4o mini is available from Azure.

Gemini 1.5 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

GPT-4o mini

azure logo
Azure
Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 1.5 Pro and GPT-4o mini side-by-side, then vote on the output you prefer.

Gemini 1.5 Pro
✓ Preferred
GPT-4o mini
Open in Playground

FAQ

Common questions about Gemini 1.5 Pro vs GPT-4o mini.

Which is better, Gemini 1.5 Pro or GPT-4o mini?

Gemini 1.5 Pro leads the LLM Stats Score 12.1 to 3.8. Gemini 1.5 Pro is made by Google and GPT-4o mini is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 1.5 Pro compare to GPT-4o mini in benchmarks?

Gemini 1.5 Pro scores XSTest: 98.8%, FLEURS: 93.3%, HellaSwag: 93.3%, GSM8k: 90.8%, BIG-Bench Hard: 89.2%. GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%.

Is Gemini 1.5 Pro cheaper than GPT-4o mini?

GPT-4o mini is 16.7x cheaper for input tokens. Gemini 1.5 Pro costs $2.50/M input and $10.00/M output via google. GPT-4o mini costs $0.15/M input and $0.60/M output via azure.

What are the context window sizes for Gemini 1.5 Pro and GPT-4o mini?

Gemini 1.5 Pro supports 2.1M tokens and GPT-4o mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 1.5 Pro and GPT-4o mini?

Key differences include LLM Stats Score (12.1 vs 3.8), context window (2.1M vs 128K), input pricing ($2.50 vs $0.15/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 1.5 Pro and GPT-4o mini?

Gemini 1.5 Pro is developed by Google and GPT-4o mini is developed by OpenAI.

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