GPT-4o vs o3 Deep Research (Comparative Analysis)
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Comparative Analysis: GPT-4o vs. o3 Deep Research
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Overview
GPT-4o was released 1 year before o3 Deep Research.
 GPT-4o | o3 Deep Research | |
|---|---|---|
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 | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 16.4K tokens | 100K tokens |
Release Date When this model first became publicly available | May 13, 2024 2 years ago May 13th, 2024 | October 10, 2025 9 months ago October 10th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | October 31, 2023 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-4o | o3 Deep Research | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File | 🖼️Image📝Text📁File |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Optional |
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 Output✓Reasoning Mode✓Content Moderation |
Pricing
GPT-4o is roughly 0.3x less expensive compared to o3 Deep Research for input tokens and roughly 0.3x less expensive for output tokens.
| GPT-4o | o3 Deep Research | |
|---|---|---|
Input Token Cost Cost per million input tokens | $2.50 per million tokens | $10.00 per million tokens |
Output Token Cost Cost per million output tokens | $10.00 per million tokens | $40.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $1.25 per million tokens | $2.50 per million tokens |
Benchmarks
Compare relevant benchmarks between GPT-4o and o3 Deep Research.
| GPT-4o | o3 Deep Research | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 962 Elo (#104 in Game Dev (42.3% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes GPT-4o and o3 Deep Research unique.
GPT-4o by OpenAI understands both text and images, can use external tools and APIs, 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 May 13th, 2024.o3 Deep Research by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $10.00/M input and $40.00/M output tokens. Includes built-in content moderation for safer outputs. Released October 10th, 2025.Explore More Comparisons
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