Gemini 2.5 Flash vs GPT-4.1 nano Comparison

Comparing Gemini 2.5 Flash and GPT-4.1 nano across benchmarks, pricing, and capabilities.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Gemini 2.5 Flash outperforms in 5 benchmarks (Aider-Polyglot, Aider-Polyglot Edit, AIME 2024, GPQA, MMMU), while GPT-4.1 nano is better at 0 benchmarks.

Gemini 2.5 Flash significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4.1 nano costs less

For input processing, Gemini 2.5 Flash ($0.30/1M tokens) is 3.0x more expensive than GPT-4.1 nano ($0.10/1M tokens).

For output processing, Gemini 2.5 Flash ($2.50/1M tokens) is 6.3x more expensive than GPT-4.1 nano ($0.40/1M tokens).

In conclusion, Gemini 2.5 Flash is more expensive than GPT-4.1 nano.*

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Gemini 2.5 Flash

Input tokens$0.30

Output tokens$2.50

Best providerGoogle

GPT-4.1 nano

Input tokens$0.10

Output tokens$0.40

Best providerOpenAI

Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 2.5 Flash accepts 1,048,576 input tokens compared to GPT-4.1 nano's 1,047,576 tokens. Gemini 2.5 Flash can generate longer responses up to 65,536 tokens, while GPT-4.1 nano is limited to 32,768 tokens.

Gemini 2.5 Flash

Input1,048,576 tokens

Output65,536 tokens

GPT-4.1 nano

Input1,047,576 tokens

Output32,768 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 2.5 Flash and GPT-4.1 nano support multimodal inputs.

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

Gemini 2.5 Flash

Text

Images

Audio

Video

GPT-4.1 nano

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 2.5 Flash

Proprietary

Closed source

GPT-4.1 nano

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Flash was released on 2025-05-20, while GPT-4.1 nano was released on 2025-04-14.

Gemini 2.5 Flash is 1 month newer than GPT-4.1 nano.

Gemini 2.5 Flash

May 20, 2025

9 months ago

1mo newer

GPT-4.1 nano

Apr 14, 2025

11 months ago

Knowledge Cutoff

When training data ends

Gemini 2.5 Flash has a knowledge cutoff of 2025-01-31, while GPT-4.1 nano has a cutoff of 2024-05-31.

Gemini 2.5 Flash has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to GPT-4.1 nano (2024-05-31).

Gemini 2.5 Flash

Jan 2025

8 mo newer

GPT-4.1 nano

May 2024

Provider Availability

Gemini 2.5 Flash is available from Google. GPT-4.1 nano is available from OpenAI. The availability of providers can affect quality of the model and reliability.