Gemini 3 Flash vs GPT-5.4 nano Comparison

Comparing Gemini 3 Flash and GPT-5.4 nano across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

8 benchmarks

Gemini 3 Flash outperforms in 6 benchmarks (GPQA, Humanity's Last Exam, MCP Atlas, MMMU-Pro, Terminal-Bench 2.0, Toolathlon), while GPT-5.4 nano is better at 2 benchmarks (MRCR v2 (8-needle), OmniDocBench 1.5).

Gemini 3 Flash shows notably better performance in the majority of benchmarks.

Wed Mar 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-5.4 nano costs less

For input processing, Gemini 3 Flash ($0.50/1M tokens) is 2.5x more expensive than GPT-5.4 nano ($0.20/1M tokens).

For output processing, Gemini 3 Flash ($3.00/1M tokens) is 2.4x more expensive than GPT-5.4 nano ($1.25/1M tokens).

In conclusion, Gemini 3 Flash is more expensive than GPT-5.4 nano.*

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

Lowest available price from all providers
Wed Mar 18 2026 • llm-stats.com
Google
Gemini 3 Flash
Input tokens$0.50
Output tokens$3.00
Best providerGoogle
OpenAI
GPT-5.4 nano
Input tokens$0.20
Output tokens$1.25
Best providerOpenAI
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Context Window

Maximum input and output token capacity

Gemini 3 Flash accepts 1,000,000 input tokens compared to GPT-5.4 nano's 400,000 tokens. GPT-5.4 nano can generate longer responses up to 128,000 tokens, while Gemini 3 Flash is limited to 65,536 tokens.

Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
OpenAI
GPT-5.4 nano
Input400,000 tokens
Output128,000 tokens
Wed Mar 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3 Flash and GPT-5.4 nano support multimodal inputs.

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

Gemini 3 Flash

Text
Images
Audio
Video

GPT-5.4 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 3 Flash

Proprietary

Closed source

GPT-5.4 nano

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Flash was released on 2025-12-17, while GPT-5.4 nano was released on 2026-03-17.

GPT-5.4 nano is 3 months newer than Gemini 3 Flash.

Gemini 3 Flash

Dec 17, 2025

3 months ago

GPT-5.4 nano

Mar 17, 2026

1 days ago

3mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Flash has a knowledge cutoff of 2025-01-31, while GPT-5.4 nano has a cutoff of 2025-08-31.

GPT-5.4 nano has more recent training data (up to 2025-08-31), making it potentially better informed about events through that date compared to Gemini 3 Flash (2025-01-31).

Gemini 3 Flash

Jan 2025

GPT-5.4 nano

Aug 2025

7 mo newer

Provider Availability

Gemini 3 Flash is available from Google. GPT-5.4 nano is available from OpenAI. The availability of providers can affect quality of the model and reliability.

Gemini 3 Flash

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M

GPT-5.4 nano

openai logo
OpenAI
Input Price:Input: $0.20/1MOutput Price:Output: $1.25/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,000,000 tokens)
Higher GPQA score (90.4% vs 82.8%)
Higher Humanity's Last Exam score (43.5% vs 24.3%)
Higher MCP Atlas score (57.4% vs 56.1%)
Higher MMMU-Pro score (81.2% vs 66.1%)
Higher Terminal-Bench 2.0 score (47.6% vs 46.3%)
Higher Toolathlon score (49.4% vs 35.5%)
OpenAI
Less expensive input tokens
Less expensive output tokens
Higher MRCR v2 (8-needle) score (33.1% vs 22.1%)
Higher OmniDocBench 1.5 score (75.8% vs 12.1%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3 Flash
OpenAI
GPT-5.4 nano