o1 vs Claude 4.6 Opus Max

Detailed comparison of capabilities, features, and performance.

o1

o1

OpenAI
VS
Claude 4.6 Opus Max

Claude 4.6 Opus Max

Anthropic
Feature o1 Claude 4.6 Opus Max
AI Lab OpenAI Anthropic
Context Size 128,000 tokens 1,000,000 tokens
Max Output Size 100,000 tokens 125,000 tokens
Frontier Model Yes Yes
Vision Support No Yes
Description o1 is OpenAI's new reasoning model for complex tasks that require broad general knowledge The latest Opus 4.6 model from Anthropic with effort set to max for highest reasoning and creativity, ideal for complex agentic tasks

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