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Gemini 2.5 Flash vs Phi-3 Mini 128K Instruct (Comparative Analysis)

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Comparative Analysis: Gemini 2.5 Flash vs. Phi-3 Mini 128K Instruct
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Overview

Phi-3 Mini 128K Instruct was released 1 year before Gemini 2.5 Flash.
Gemini 2.5 FlashGemini 2.5 Flash
Phi-3 Mini 128K InstructPhi-3 Mini 128K Instruct
Model Provider
The organization behind this AI's development
Google logoGoogle
Microsoft logoMicrosoft
Input Context Window
Maximum input tokens this model can process at once
1M
tokens
128K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
65.5K
tokens
Not specified
tokens
Release Date
When this model first became publicly available
June 17th, 2025
May 26th, 2024

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
Gemini 2.5 Flash
Phi-3 Mini 128K Instruct
Input Types
Supported input formats
📁File🖼️Image📝Text🎵Audio
📝Text
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
GeminiOther
Key Features
Advanced capabilities
Function CallingStructured OutputReasoning ModeContent Moderation
Function CallingStructured OutputReasoning ModeContent Moderation
Open Source
Model availability
ProprietaryAvailable on HuggingFace →

Pricing

Gemini 2.5 Flash is roughly 3.0x more expensive compared to Phi-3 Mini 128K Instruct for input tokens and roughly 25.0x more expensive for output tokens.
Gemini 2.5 FlashGemini 2.5 Flash
Phi-3 Mini 128K InstructPhi-3 Mini 128K Instruct
Input Token Cost
Cost per million input tokens
$0.30
per million tokens
$0.10
per million tokens
Output Token Cost
Cost per million outut tokens
$2.50
per million tokens
$0.10
per million tokens

Benchmarks

Compare relevant benchmarks between Gemini 2.5 Flash and Phi-3 Mini 128K Instruct.
Gemini 2.5 FlashGemini 2.5 Flash
Phi-3 Mini 128K InstructPhi-3 Mini 128K Instruct
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 Phi-3 Mini 128K Instruct unique.
Google logoGemini 2.5 Flash by Google understands both text and images, handles audio, 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.
Microsoft logoPhi-3 Mini 128K Instruct by Microsoft can use external tools and APIs. It can handle standard conversations with its 128K token context window. Very affordable at $0.10/M input and $0.10/M output tokens. Released May 26th, 2024.

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