Grok-3 vs Gemini 3.1 Flash-Lite Comparison

Comparing Grok-3 and Gemini 3.1 Flash-Lite across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok-3 outperforms in 0 benchmarks, while Gemini 3.1 Flash-Lite is better at 1 benchmark (GPQA).

Gemini 3.1 Flash-Lite significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Flash-Lite costs less

For input processing, Grok-3 ($3.00/1M tokens) is 12.0x more expensive than Gemini 3.1 Flash-Lite ($0.25/1M tokens).

For output processing, Grok-3 ($15.00/1M tokens) is 10.0x more expensive than Gemini 3.1 Flash-Lite ($1.50/1M tokens).

In conclusion, Grok-3 is more expensive than Gemini 3.1 Flash-Lite.*

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Grok-3

Input tokens$3.00

Output tokens$15.00

Best providerxAI

Gemini 3.1 Flash-Lite

Input tokens$0.25

Output tokens$1.50

Best providerGoogle

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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 Grok-3's 128,000 tokens. Gemini 3.1 Flash-Lite can generate longer responses up to 65,536 tokens, while Grok-3 is limited to 8,000 tokens.

Grok-3

Input128,000 tokens

Output8,000 tokens

Gemini 3.1 Flash-Lite

Input1,000,000 tokens

Output65,536 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Grok-3 and Gemini 3.1 Flash-Lite support multimodal inputs.

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

Grok-3

Text

Images

Audio

Video

Gemini 3.1 Flash-Lite

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.

Grok-3

Proprietary

Closed source

Gemini 3.1 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-3 was released on 2025-02-17, while Gemini 3.1 Flash-Lite was released on 2026-03-03.

Gemini 3.1 Flash-Lite is 13 months newer than Grok-3.

Grok-3

Feb 17, 2025

1.1 years ago

Gemini 3.1 Flash-Lite

Mar 3, 2026

1 weeks ago

1.0yr newer

Knowledge Cutoff

When training data ends

Grok-3 has a knowledge cutoff of 2024-11-17, while Gemini 3.1 Flash-Lite has a cutoff of 2025-01-31.

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 Grok-3 (2024-11-17).

Grok-3

Nov 2024

Gemini 3.1 Flash-Lite

Jan 2025

2 mo newer

Provider Availability

Grok-3 is available from xAI. Gemini 3.1 Flash-Lite is available from Google. The availability of providers can affect quality of the model and reliability.