ChatGPT-4o vs GPT-4o Search Preview (Comparative Analysis)

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Comparative Analysis: ChatGPT-4o vs. GPT-4o Search Preview

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Overview

ChatGPT-4o was released 7 months before GPT-4o Search Preview.

	ChatGPT-4o	GPT-4o Search Preview
Model Provider The organization behind this AI's development	OpenAI	OpenAI
Input Context Window Maximum input tokens this model can process at once	128K tokens	128K tokens
Output Token Limit Maximum output tokens this model can generate at once	16.4K tokens	16.4K tokens
Release Date When this model first became publicly available	August 14, 2024 1 year ago August 14th, 2024	March 12, 2025 8 months ago March 12th, 2025

Capabilities & Features

Compare supported features, modalities, and advanced capabilities

	ChatGPT-4o	GPT-4o Search Preview
Input Types Supported input formats	📝Text🖼️Image	📝Text
Output Types Supported output formats	📝Text	📝Text
Tokenizer Text encoding system	GPT	GPT
Key Features Advanced capabilities	Function Calling✓Structured OutputReasoning Mode✓Content Moderation	Function Calling✓Structured OutputReasoning Mode✓Content Moderation

Pricing

ChatGPT-4o is roughly 2.0x more expensive compared to GPT-4o Search Preview for input tokens and roughly 1.5x more expensive for output tokens.

	ChatGPT-4o	GPT-4o Search Preview
Input Token Cost Cost per million input tokens	$5.00 per million tokens	$2.50 per million tokens
Output Token Cost Cost per million outut tokens	$15.00 per million tokens	$10.00 per million tokens

Benchmarks

Compare relevant benchmarks between ChatGPT-4o and GPT-4o Search Preview.

	ChatGPT-4o	GPT-4o Search Preview
MMLU Measures knowledge across 57 subjects like law, math, history, and science	Benchmark not available.	Benchmark not available.
MMMU Measures understanding of combined text and images across various domains	Benchmark not available.	Benchmark not available.
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations	Benchmark not available.	Benchmark not available.

At a Glance

Quick overview of what makes ChatGPT-4o and GPT-4o Search Preview unique.

ChatGPT-4o by OpenAI understands both text and images, generates structured data. It can handle standard conversations with its 128K token context window. Premium pricing at $5.00/M input and $15.00/M output tokens. Includes built-in content moderation for safer outputs. Released August 14th, 2024.

GPT-4o Search Preview by OpenAI generates structured data. It can handle standard conversations with its 128K token context window. Reasonably priced at $2.50/M input and $10.00/M output tokens. Includes built-in content moderation for safer outputs. Released March 12th, 2025.