GPT-4.5 (Preview)
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GPT-4.5 family model by OpenAI.
preview
About the GPT-4.5 family
OpenAI's early-2025 large non-reasoning model (research preview 'Orion') — strong writing and world knowledge, later retired in favor of GPT-5.
All GPT-4.5 modelsHow this one is configured
This configuration version/snapshot: preview.