Gemini 1.5 Flash vs GPT-4 Comparison

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

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Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Gemini 1.5 Flash outperforms in 4 benchmarks (GPQA, HumanEval, MATH, MGSM), while GPT-4 is better at 2 benchmarks (HellaSwag, MMLU).

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

Thu Mar 19 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 1.5 Flash costs less

For input processing, Gemini 1.5 Flash ($0.15/1M tokens) is 200.0x cheaper than GPT-4 ($30.00/1M tokens).

For output processing, Gemini 1.5 Flash ($0.60/1M tokens) is 100.0x cheaper than GPT-4 ($60.00/1M tokens).

In conclusion, GPT-4 is more expensive than Gemini 1.5 Flash.*

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

Lowest available price from all providers

Thu Mar 19 2026 • llm-stats.com

Gemini 1.5 Flash

Input tokens$0.15

Output tokens$0.60

Best providerGoogle

GPT-4

Input tokens$30.00

Output tokens$60.00

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-4's 32,768 tokens. GPT-4 can generate longer responses up to 32,768 tokens, while Gemini 1.5 Flash is limited to 8,192 tokens.

Gemini 1.5 Flash

Input1,048,576 tokens

Output8,192 tokens

GPT-4

Input32,768 tokens

Output32,768 tokens

Thu Mar 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 1.5 Flash and GPT-4 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-4

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-4

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Flash was released on 2024-05-01, while GPT-4 was released on 2023-06-13.

Gemini 1.5 Flash is 11 months newer than GPT-4.

Gemini 1.5 Flash

May 1, 2024

1.9 years ago

10mo newer

GPT-4

Jun 13, 2023

2.8 years ago

Knowledge Cutoff

When training data ends

Gemini 1.5 Flash has a knowledge cutoff of 2023-11-01, while GPT-4 has a cutoff of 2022-12-31.

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-4 (2022-12-31).

Gemini 1.5 Flash

Nov 2023

11 mo newer

GPT-4

Dec 2022

Provider Availability

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