GPT-5 Nano
GPTCompact
ThinkingTool UseVisionStructured Output
About this model
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.
Performance Tier
Compact
GPT-5 Nano is a compact model from GPT : optimized for speed and affordability.
Small, fast, and affordable. Optimized for speed and low cost, great for high-volume or simple tasks.
Pricing
This model is included in Elosia plans| Type | per 1M tokens |
|---|---|
| Input (prompt) | $0.050 |
| Output (completion) | $0.400 |
| Cache read | $0.0050 |
Capabilities
Context Length400K
Max Output Tokens128K
TokenizerGPT
Inputtext, image, file
Outputtext
Release DateAugust 7, 2025
Benchmarks
General Intelligence
MMLU
78%
Mathematics
MATH-500
68%
AIME 2025
85.2%
Programming
HumanEval
80%
Reasoning
Humanity's Last Exam
8.7%
Recommended Use Cases
General ChatSummarizationCustomer Support
Strengths
- Lowest-cost GPT-5 family model
- Ultra-fast response times for latency-sensitive applications
- Ideal for simple classification and extraction tasks
Limitations
- Significantly limited reasoning capabilities
- Not suitable for complex coding or analysis
Resources
This model may use your data for training
