Gemini 1.5 Flash vs Grok-3 Mini Comparison

Comparing Gemini 1.5 Flash and Grok-3 Mini across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 1.5 Flash outperforms in 0 benchmarks, while Grok-3 Mini is better at 1 benchmark (GPQA).

Grok-3 Mini significantly outperforms across most benchmarks.

Tue Mar 17 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 2.0x cheaper than Grok-3 Mini ($0.30/1M tokens).

For output processing, Gemini 1.5 Flash ($0.60/1M tokens) is 1.2x more expensive than Grok-3 Mini ($0.50/1M tokens).

In conclusion, Grok-3 Mini is more expensive than Gemini 1.5 Flash.*

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

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Gemini 1.5 Flash

Input tokens$0.15

Output tokens$0.60

Best providerGoogle

Grok-3 Mini

Input tokens$0.30

Output tokens$0.50

Best providerxAI

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Context Window

Maximum input and output token capacity

Gemini 1.5 Flash accepts 1,048,576 input tokens compared to Grok-3 Mini's 128,000 tokens. Gemini 1.5 Flash can generate longer responses up to 8,192 tokens, while Grok-3 Mini is limited to 8,000 tokens.

Gemini 1.5 Flash

Input1,048,576 tokens

Output8,192 tokens

Grok-3 Mini

Input128,000 tokens

Output8,000 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 1.5 Flash and Grok-3 Mini 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

Grok-3 Mini

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

Grok-3 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Flash was released on 2024-05-01, while Grok-3 Mini was released on 2025-02-17.

Grok-3 Mini is 10 months newer than Gemini 1.5 Flash.

Gemini 1.5 Flash

May 1, 2024

1.9 years ago

Grok-3 Mini

Feb 17, 2025

1.1 years ago

9mo newer

Knowledge Cutoff

When training data ends

Gemini 1.5 Flash has a knowledge cutoff of 2023-11-01, while Grok-3 Mini has a cutoff of 2024-11-17.

Grok-3 Mini has more recent training data (up to 2024-11-17), making it potentially better informed about events through that date compared to Gemini 1.5 Flash (2023-11-01).

Gemini 1.5 Flash

Nov 2023

Grok-3 Mini

Nov 2024

1 yr newer

Provider Availability

Gemini 1.5 Flash is available from Google. Grok-3 Mini is available from xAI. The availability of providers can affect quality of the model and reliability.