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gpt-oss-20b vs Qwen3 Coder (Comparative Analysis)

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Comparative Analysis: gpt-oss-20b vs. Qwen3 Coder
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Overview

Qwen3 Coder was released 13 days before gpt-oss-20b.
gpt-oss-20bgpt-oss-20b
Qwen3 CoderQwen3 Coder
Model Provider
The organization behind this AI's development
OpenAI logoOpenAI
Qwen logoQwen
Input Context Window
Maximum input tokens this model can process at once
131K
tokens
262.1K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
131K
tokens
Not specified
tokens
Release Date
When this model first became publicly available
August 5th, 2025
July 23rd, 2025

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
gpt-oss-20b
Qwen3 Coder
Input Types
Supported input formats
📝Text
📝Text
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
GPTQwen3
Key Features
Advanced capabilities
Function CallingStructured OutputReasoning ModeContent Moderation
Function CallingStructured OutputReasoning ModeContent Moderation
Open Source
Model availability
Available on HuggingFace →Available on HuggingFace →

Pricing

gpt-oss-20b is roughly 0.2x less expensive compared to Qwen3 Coder for input tokens and roughly 0.2x less expensive for output tokens.
gpt-oss-20bgpt-oss-20b
Qwen3 CoderQwen3 Coder
Input Token Cost
Cost per million input tokens
$0.04
per million tokens
$0.20
per million tokens
Output Token Cost
Cost per million outut tokens
$0.15
per million tokens
$0.80
per million tokens

Benchmarks

Compare relevant benchmarks between gpt-oss-20b and Qwen3 Coder.
gpt-oss-20bgpt-oss-20b
Qwen3 CoderQwen3 Coder
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 gpt-oss-20b and Qwen3 Coder unique.
OpenAI logogpt-oss-20b 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 $0.04/M input and $0.15/M output tokens. Released August 5th, 2025.
Qwen logoQwen3 Coder by Qwen can use external tools and APIs, generates structured data. It can handle standard conversations with its 262.1K token context window. Very affordable at $0.20/M input and $0.80/M output tokens. Released July 23rd, 2025.

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