GPT-4 vs GPT-5 Nano (Comparative Analysis)
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Comparative Analysis: GPT-4 vs. GPT-5 Nano
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Overview
GPT-4 was released 2 years before GPT-5 Nano.
 GPT-4 | GPT-5 Nano | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 8.2K tokens | 400K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 4.1K tokens | 128K tokens |
Release Date When this model first became publicly available | May 28, 2023 3 years ago May 28th, 2023 | August 7, 2025 11 months ago August 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | September 30, 2021 | May 31, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-4 | GPT-5 Nano | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Always enabledEffort: High, Medium, Low, MinimalDefault: Medium |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Pricing
GPT-4 is roughly 600.0x more expensive compared to GPT-5 Nano for input tokens and roughly 150.0x more expensive for output tokens.
| GPT-4 | GPT-5 Nano | |
|---|---|---|
Input Token Cost Cost per million input tokens | $30.00 per million tokens | $0.05 per million tokens |
Output Token Cost Cost per million output tokens | $60.00 per million tokens | $0.40 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 | Not specified | $0.0050 per million tokens |
Benchmarks
Compare relevant benchmarks between GPT-4 and GPT-5 Nano.
| GPT-4 | GPT-5 Nano | |
|---|---|---|
Coding Index Programming performance across independent evaluations | 13.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,126 Elo (#83 in Website (48.9% win rate)) |
At a Glance
Quick overview of what makes GPT-4 and GPT-5 Nano unique.
GPT-4 by OpenAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 8.2K token context window. Premium pricing at $30.00/M input and $60.00/M output tokens. Released May 28th, 2023.GPT-5 Nano 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 400K token context window. Very affordable at $0.05/M input and $0.40/M output tokens. Includes built-in content moderation for safer outputs. Released August 7th, 2025.Explore More Comparisons
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Compare GPT-5 Nano with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks