Gemini 2.5 Flash vs o3 Mini High (Comparative Analysis)
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Comparative Analysis: Gemini 2.5 Flash vs. o3 Mini High
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Overview
o3 Mini High was released 4 months before Gemini 2.5 Flash.
 Gemini 2.5 Flash |  o3 Mini High | |
|---|---|---|
Model Provider The organization behind this AI's development | Google | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 65.5K tokens | 100K tokens |
Release Date When this model first became publicly available | June 17, 2025 1 year ago June 17th, 2025 | February 12, 2025 1 year ago February 12th, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemini 2.5 Flash | o3 Mini High | |
|---|---|---|
Input Types Supported input formats | 📁File🖼️Image📝Text🎵Audio🎬Video | 📝Text📁File |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Gemini | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Pricing
Gemini 2.5 Flash is roughly 0.3x less expensive compared to o3 Mini High for input tokens and roughly 0.6x less expensive for output tokens.
| Gemini 2.5 Flash | o3 Mini High | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.30 per million tokens | $1.10 per million tokens |
Output Token Cost Cost per million outut tokens | $2.50 per million tokens | $4.40 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemini 2.5 Flash and o3 Mini High.
| Gemini 2.5 Flash | o3 Mini High | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
At a Glance
Quick overview of what makes Gemini 2.5 Flash and o3 Mini High unique.
Gemini 2.5 Flash by Google understands both text and images, handles audio, analyzes video, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Reasonably priced at $0.30/M input and $2.50/M output tokens. Released June 17th, 2025.o3 Mini High by OpenAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Reasonably priced at $1.10/M input and $4.40/M output tokens. Includes built-in content moderation for safer outputs. Released February 12th, 2025.Explore More Comparisons
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Compare o3 Mini High with:
🚀Programming
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🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks