Gemini 3.1 Flash-Lite vs Phi 4 Comparison

Comparing Gemini 3.1 Flash-Lite and Phi 4 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Gemini 3.1 Flash-Lite outperforms in 2 benchmarks (GPQA, SimpleQA), while Phi 4 is better at 0 benchmarks.

Gemini 3.1 Flash-Lite significantly outperforms across most benchmarks.

Mon Mar 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Phi 4 costs less

For input processing, Gemini 3.1 Flash-Lite ($0.25/1M tokens) is 3.6x more expensive than Phi 4 ($0.07/1M tokens).

For output processing, Gemini 3.1 Flash-Lite ($1.50/1M tokens) is 10.7x more expensive than Phi 4 ($0.14/1M tokens).

In conclusion, Gemini 3.1 Flash-Lite is more expensive than Phi 4.*

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

Lowest available price from all providers

Mon Mar 16 2026 • llm-stats.com

Gemini 3.1 Flash-Lite

Input tokens$0.25

Output tokens$1.50

Best providerGoogle

Phi 4

Input tokens$0.07

Output tokens$0.14

Best providerDeepinfra

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Context Window

Maximum input and output token capacity

Gemini 3.1 Flash-Lite accepts 1,000,000 input tokens compared to Phi 4's 16,000 tokens. Gemini 3.1 Flash-Lite can generate longer responses up to 65,536 tokens, while Phi 4 is limited to 16,000 tokens.

Gemini 3.1 Flash-Lite

Input1,000,000 tokens

Output65,536 tokens

Phi 4

Input16,000 tokens

Output16,000 tokens

Mon Mar 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3.1 Flash-Lite supports multimodal inputs, whereas Phi 4 does not.

Gemini 3.1 Flash-Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.1 Flash-Lite

Text

Images

Audio

Video

Phi 4

Text

Images

Audio

Video

License

Usage and distribution terms

Gemini 3.1 Flash-Lite is licensed under a proprietary license, while Phi 4 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 3.1 Flash-Lite

Proprietary

Closed source

Phi 4

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Flash-Lite was released on 2026-03-03, while Phi 4 was released on 2024-12-12.

Gemini 3.1 Flash-Lite is 15 months newer than Phi 4.

Gemini 3.1 Flash-Lite

Mar 3, 2026

1 weeks ago

1.2yr newer

Phi 4

Dec 12, 2024

1.3 years ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Flash-Lite has a knowledge cutoff of 2025-01-31, while Phi 4 has a cutoff of 2024-06-01.

Gemini 3.1 Flash-Lite has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Phi 4 (2024-06-01).

Gemini 3.1 Flash-Lite

Jan 2025

7 mo newer

Phi 4

Jun 2024

Provider Availability

Gemini 3.1 Flash-Lite is available from Google. Phi 4 is available from DeepInfra. The availability of providers can affect quality of the model and reliability.