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gpt-oss-120b vs Skyfall 36B V2 (Comparative Analysis)

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Comparative Analysis: gpt-oss-120b vs. Skyfall 36B V2
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Overview

Skyfall 36B V2 was released 4 months before gpt-oss-120b.
gpt-oss-120bgpt-oss-120b
Skyfall 36B V2Skyfall 36B V2
Model Provider
The organization behind this AI's development
OpenAI logoOpenAI
TheDrummer logoTheDrummer
Input Context Window
Maximum input tokens this model can process at once
131.1K
tokens
32.8K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
131.1K
tokens
32.8K
tokens
Release Date
When this model first became publicly available
August 5th, 2025
March 10th, 2025
Knowledge Cutoff
Latest training-data date reported by the provider
June 30, 2024
June 30, 2024

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
gpt-oss-120b
Skyfall 36B V2
Input Types
Supported input formats
📝Text
📝Text
Reasoning Controls
Defaults and configurable reasoning effort
Always enabledEffort: High, Medium, LowDefault: Medium
Not reported
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
GPTOther
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-120b is roughly 0.07x less expensive compared to Skyfall 36B V2 for input tokens and roughly 0.2x less expensive for output tokens.
gpt-oss-120bgpt-oss-120b
Skyfall 36B V2Skyfall 36B V2
Input Token Cost
Cost per million input tokens
$0.04
per million tokens
$0.55
per million tokens
Output Token Cost
Cost per million output tokens
$0.17
per million tokens
$0.80
per million tokens
Cache Read Cost
Cost to reuse cached input tokens
Not specified
$0.25
per million tokens

Benchmarks

Compare relevant benchmarks between gpt-oss-120b and Skyfall 36B V2.
gpt-oss-120bgpt-oss-120b
Skyfall 36B V2Skyfall 36B V2
Intelligence Index
Overall model quality across independent evaluations
23.8
(Artificial Analysis index; higher is better)
Benchmark not available.
Coding Index
Programming performance across independent evaluations
30.4
(Artificial Analysis index; higher is better)
Benchmark not available.
Agentic Index
Ability to complete multi-step agentic tasks
13.2
(Artificial Analysis index; higher is better)
Benchmark not available.
Best Design Arena Score
Highest human-preference Elo score across design arenas
1,052 Elo
(#90 in Game Dev (40.6% win rate))
Benchmark not available.

At a Glance

Quick overview of what makes gpt-oss-120b and Skyfall 36B V2 unique.
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 131.1K token context window. Very affordable at $0.04/M input and $0.17/M output tokens. Released August 5th, 2025.
TheDrummer logoSkyfall 36B V2 by TheDrummer generates structured data. It can handle standard conversations with its 32.8K token context window. Reasonably priced at $0.55/M input and $0.80/M output tokens. Released March 10th, 2025.

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