Model Comparison

GPT-4o mini vs Gemini 2.0 Flash ThinkingWhich is better in 2026?

Gemini 2.0 Flash Thinking significantly outperforms across most benchmarks.

Verdict: GPT-4o mini vs Gemini 2.0 Flash Thinking — which is better?

GPT-4o mini (by OpenAI) and Gemini 2.0 Flash Thinking (by Google) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-4o mini outperforms in 0 benchmarks, while Gemini 2.0 Flash Thinking is better at 2 benchmarks (GPQA, MMMU). Gemini 2.0 Flash Thinking significantly outperforms across most benchmarks.

Choose GPT-4o mini if…

  • you want predictable pricing at $0.15/M input and $0.60/M output

Choose Gemini 2.0 Flash Thinking if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped Jan 2025
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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4o mini outperforms in 0 benchmarks, while Gemini 2.0 Flash Thinking is better at 2 benchmarks (GPQA, MMMU).

Gemini 2.0 Flash Thinking significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4o mini specifies input context (128,000 tokens). Only GPT-4o mini specifies output context (16,384 tokens).

OpenAI
GPT-4o mini
Input128,000 tokens
Output16,384 tokens
Google
Gemini 2.0 Flash Thinking
Input- tokens
Output- tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4o mini and Gemini 2.0 Flash Thinking support multimodal inputs.

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

GPT-4o mini

Text
Images
Audio
Video

Gemini 2.0 Flash Thinking

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.

GPT-4o mini

Proprietary

Closed source

Gemini 2.0 Flash Thinking

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o mini was released on 2024-07-18, while Gemini 2.0 Flash Thinking was released on 2025-01-21.

Gemini 2.0 Flash Thinking is 6 months newer than GPT-4o mini.

GPT-4o mini

Jul 18, 2024

1.9 years ago

Gemini 2.0 Flash Thinking

Jan 21, 2025

1.4 years ago

6mo newer

Knowledge Cutoff

When training data ends

GPT-4o mini has a knowledge cutoff of 2023-10-01, while Gemini 2.0 Flash Thinking has a cutoff of 2024-08-01.

Gemini 2.0 Flash Thinking has more recent training data (up to 2024-08-01), making it potentially better informed about events through that date compared to GPT-4o mini (2023-10-01).

GPT-4o mini

Oct 2023

Gemini 2.0 Flash Thinking

Aug 2024

10 mo newer

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (128,000 tokens)
Google
Higher GPQA score (74.2% vs 40.2%)
Higher MMMU score (75.4% vs 59.4%)

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-4o mini
Google
Gemini 2.0 Flash Thinking

FAQ

Common questions about GPT-4o mini vs Gemini 2.0 Flash Thinking.

Which is better, GPT-4o mini or Gemini 2.0 Flash Thinking?

Gemini 2.0 Flash Thinking significantly outperforms across most benchmarks. GPT-4o mini is made by OpenAI and Gemini 2.0 Flash Thinking is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4o mini compare to Gemini 2.0 Flash Thinking in benchmarks?

GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%. Gemini 2.0 Flash Thinking scores MMMU: 75.4%, GPQA: 74.2%, AIME 2024: 73.3%.

What are the context window sizes for GPT-4o mini and Gemini 2.0 Flash Thinking?

GPT-4o mini supports 128K tokens and Gemini 2.0 Flash Thinking supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes GPT-4o mini and Gemini 2.0 Flash Thinking?

GPT-4o mini is developed by OpenAI and Gemini 2.0 Flash Thinking is developed by Google.

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