Claude 3 Haiku vs GPT-5 Nano (Comparative Analysis)
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Comparative Analysis: Claude 3 Haiku vs. GPT-5 Nano
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Overview
Claude 3 Haiku was released 1 year before GPT-5 Nano.
 Claude 3 Haiku |  GPT-5 Nano | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 200K 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 | March 13, 2024 2 years ago March 13th, 2024 | August 7, 2025 11 months ago August 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | August 31, 2023 | May 31, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude 3 Haiku | GPT-5 Nano | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image | 📝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 | Claude | GPT |
Key Features Advanced capabilities | ✓Function CallingStructured OutputReasoning Mode✓Content Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Pricing
Claude 3 Haiku is roughly 5.0x more expensive compared to GPT-5 Nano for input tokens and roughly 3.1x more expensive for output tokens.
| Claude 3 Haiku | GPT-5 Nano | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.25 per million tokens | $0.05 per million tokens |
Output Token Cost Cost per million output tokens | $1.25 per million tokens | $0.40 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.03 per million tokens | $0.0050 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | $0.30 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $0.50 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude 3 Haiku and GPT-5 Nano.
| Claude 3 Haiku | GPT-5 Nano | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,126 Elo (#82 in Website (48.9% win rate)) |
At a Glance
Quick overview of what makes Claude 3 Haiku and GPT-5 Nano unique.
Claude 3 Haiku by Anthropic understands both text and images, can use external tools and APIs. It can handle standard conversations with its 200K token context window. Very affordable at $0.25/M input and $1.25/M output tokens. Includes built-in content moderation for safer outputs. Released March 13th, 2024.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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