gpt-oss-120b vs Claude 4 Sonnet (thinking)
Detailed comparison of capabilities, features, and performance.
Feature
gpt-oss-120b
Claude 4 Sonnet (thinking)
Model Image
AI Lab
OpenAI
Anthropic
Context Size
128,000 tokens
200,000 tokens
Max Output Size
16,384 tokens
64,000 tokens
Frontier Model
No
Yes
Vision Support
No
Yes
Description
OpenAI's open-weight model for powerful reasoning and agentic tasks.
The latest Sonnet 4 model from Anthropic with high thinking mode
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View detailed specifications and capabilities
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