OpenAI's GPT-4 Turbo Preview is a chat model capable of processing large inputs, including PDFs and text. It is genuinely best at handling extensive conversations and context due to its large context window of 128,000 tokens.
Input
Output
Context
128K
Max Output
4K
Parameters
1800B
Input Modalities
Output Modalities
Data sourced from official provider APIs and documentation
Last updated: Jun 23, 2026
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