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o3 vs ChatGPT-4o Comparison July 2025 | AI Model Comparison

Compare o3 and ChatGPT-4o side-by-side. See detailed comparisons of their capabilities, pricing, context windows, and performance metrics. Make an informed decision about which AI model best suits your needs.

Model 1

Model 2

Featureo3ChatGPT-4o
ProviderOpenAIOpenAI
Release Date4/16/20253/26/2025
Model SizeN/AN/A
Context Window200000128000
Training Data6/1/202410/1/2023
LicenseProprietaryProprietary
Pricing
Input: $10/1M tokens
Output: $40/1M tokens
Input: $5/1M tokens
Output: $15/1M tokens
Capabilities
multimodal_inputlong_contextfunction_callingstructured_outputsadvanced_reasoningvisionstreamingCode Generationinstruction_followingtechnical_writing
file_inputsweb_browsing_via_toolcode_interpretationmultimodal_inputfunction_callingstructured_outputsreasoningstreaming

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