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GPT-5.4 (thinking) vs Claude 3.7 Sonnet (high output)

Detailed comparison of capabilities, features, and performance.

GPT-5.4 (thinking)

GPT-5.4 (thinking)

OpenAI
VS
Claude 3.7 Sonnet (high output)

Claude 3.7 Sonnet (high output)

Anthropic
Feature GPT-5.4 (thinking) Claude 3.7 Sonnet (high output)
AI Lab OpenAI Anthropic
Context Size 1,050,000 tokens 204,800 tokens
Max Output Size 128,000 tokens 128,000 tokens
Frontier Model Yes Yes
Vision Support Yes Yes
Description OpenAI's frontier model configured with high reasoning effort for complex professional tasks. The latest Sonnet 3.7 model from Anthropic

Learn more about GPT-5.4 (thinking)

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Learn more about Claude 3.7 Sonnet (high output)

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