Gemini 1.5 Flash vs GPT-4o mini Comparison

Comparing Gemini 1.5 Flash and GPT-4o mini across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 1.5 Flash outperforms in 4 benchmarks (GPQA, MATH, MathVista, MMMU), while GPT-4o mini is better at 3 benchmarks (HumanEval, MGSM, MMLU).

Gemini 1.5 Flash has a slight edge in benchmark performance.

Fri Mar 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4o mini costs less

For input processing, Gemini 1.5 Flash ($0.15/1M tokens) costs the same as GPT-4o mini ($0.15/1M tokens).

For output processing, Gemini 1.5 Flash ($0.60/1M tokens) costs the same as GPT-4o mini ($0.60/1M tokens).

In conclusion, Gemini 1.5 Flash and GPT-4o mini cost the same.*

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

Lowest available price from all providers

Fri Mar 13 2026 • llm-stats.com

Gemini 1.5 Flash

Input tokens$0.15

Output tokens$0.60

Best providerGoogle

GPT-4o mini

Input tokens$0.15

Output tokens$0.60

Best providerAzure

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Context Window

Maximum input and output token capacity

Gemini 1.5 Flash accepts 1,048,576 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 Flash is limited to 8,192 tokens.

Gemini 1.5 Flash

Input1,048,576 tokens

Output8,192 tokens

GPT-4o mini

Input128,000 tokens

Output16,384 tokens

Fri Mar 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

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

Gemini 1.5 Flash

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 Flash

Proprietary

Closed source

GPT-4o mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Flash 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 Flash.

Gemini 1.5 Flash

May 1, 2024

1.9 years ago

GPT-4o mini

Jul 18, 2024

1.7 years ago

2mo newer

Knowledge Cutoff

When training data ends

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

Gemini 1.5 Flash 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 Flash

Nov 2023

1 mo newer

GPT-4o mini

Oct 2023

Provider Availability

Gemini 1.5 Flash is available from Google. GPT-4o mini is available from Azure. The availability of providers can affect quality of the model and reliability.