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Gemini 2.0 Flash vs gpt-oss-120b (Comparative Analysis)

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Comparative Analysis: Gemini 2.0 Flash vs. gpt-oss-120b
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Overview

Gemini 2.0 Flash was released 6 months before gpt-oss-120b.
Gemini 2.0 FlashGemini 2.0 Flash
gpt-oss-120bgpt-oss-120b
Model Provider
The organization behind this AI's development
Google logoGoogle
OpenAI logoOpenAI
Input Context Window
Maximum input tokens this model can process at once
1M
tokens
131K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
8.2K
tokens
131K
tokens
Release Date
When this model first became publicly available
February 5th, 2025
August 5th, 2025

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
Gemini 2.0 Flash
gpt-oss-120b
Input Types
Supported input formats
📝Text🖼️Image📁File🎵Audio
📝Text
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
GeminiGPT
Key Features
Advanced capabilities
Function CallingStructured OutputReasoning ModeContent Moderation
Function CallingStructured OutputReasoning ModeContent Moderation
Open Source
Model availability
ProprietaryAvailable on HuggingFace →

Pricing

Gemini 2.0 Flash is roughly 1.4x more expensive compared to gpt-oss-120b for input tokens and roughly 1.4x more expensive for output tokens.
Gemini 2.0 FlashGemini 2.0 Flash
gpt-oss-120bgpt-oss-120b
Input Token Cost
Cost per million input tokens
$0.10
per million tokens
$0.07
per million tokens
Output Token Cost
Cost per million outut tokens
$0.40
per million tokens
$0.28
per million tokens

Benchmarks

Compare relevant benchmarks between Gemini 2.0 Flash and gpt-oss-120b.
Gemini 2.0 FlashGemini 2.0 Flash
gpt-oss-120bgpt-oss-120b
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 2.0 Flash and gpt-oss-120b unique.
Google logoGemini 2.0 Flash by Google understands both text and images, handles audio, can use external tools and APIs, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.10/M input and $0.40/M output tokens. Released February 5th, 2025.
OpenAI logogpt-oss-120b by OpenAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 131K token context window. Very affordable at $0.07/M input and $0.28/M output tokens. Released August 5th, 2025.

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