GPT-5 Nano by OpenAI demonstrates fast output speed, competitive pricing. View detailed benchmark data including scores across coding, math, reasoning, speed, and cost metrics.
General Benchmarks
Coding Benchmarks
Reasoning Benchmarks
Speed Benchmarks
Cost Benchmarks
Context Benchmarks
GPT-5 Nano — Benchmark Scores Overview
Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).
Compare GPT-5 Nano With
GPT-5 Nano — Frequently Asked Questions
How intelligent is GPT-5 Nano?
GPT-5 Nano scores 1200 on the Chatbot Arena ELO rating, making it an entry-level AI model. This score is based on blind head-to-head human preference voting.
How much does GPT-5 Nano cost?
GPT-5 Nano costs $0.05 per 1M input tokens and $0.40 per 1M output tokens. This makes it one of the more affordable models.
How fast is GPT-5 Nano?
GPT-5 Nano generates output at 250 tokens per second, which is very fast compared to other models. The time to first token is 80 ms.
How good is GPT-5 Nano at coding?
GPT-5 Nano achieves 25.0% on SWE-bench Verified, demonstrating basic real-world software engineering capability. This benchmark tests the model's ability to resolve actual GitHub issues.
How good is GPT-5 Nano at math and reasoning?
GPT-5 Nano scores 65.0% on the MATH benchmark (competition-level mathematics). It also achieves 35.0% on GPQA Diamond, a graduate-level science reasoning benchmark.
What is the context window of GPT-5 Nano?
GPT-5 Nano has a context window of 400K tokens. This determines how much text, conversation history, and code the model can process in a single request.
Who created GPT-5 Nano?
GPT-5 Nano was created by OpenAI. It is classified as a budget model in the AI Value Index.
Is GPT-5 Nano open source?
No, GPT-5 Nano is a proprietary model. It is available through OpenAI's API and compatible providers.