gpt-oss-20b vs Claude 3.5 Haiku

Detailed comparison of capabilities, features, and performance.

gpt-oss-20b

gpt-oss-20b

OpenAI
VS
Claude 3.5 Haiku

Claude 3.5 Haiku

Anthropic
Feature gpt-oss-20b Claude 3.5 Haiku
AI Lab OpenAI Anthropic
Context Size 128,000 tokens 204,800 tokens
Max Output Size 16,384 tokens 4,096 tokens
Frontier Model No No
Vision Support No No
Description OpenAI's smaller open-weight model for powerful reasoning and agentic tasks. The latest Haiku 3.5 model from Anthropic

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