Comprehensive side-by-side LLM comparison
GPT-5 nano leads with 43.3% higher average benchmark score. GPT-5 nano offers 487.0K more tokens in context window than Gemini 1.0 Pro. GPT-5 nano is $1.55 cheaper per million tokens. GPT-5 nano supports multimodal inputs. Overall, GPT-5 nano is the stronger choice for coding tasks.
Gemini 1.0 Pro was developed as Google's initial production-ready multimodal model, designed to handle text and provide strong performance across diverse tasks. Built to serve as a versatile foundation for applications requiring reliable language understanding and generation, it introduced the Gemini architecture to developers and enterprises.
OpenAI
GPT-5 Nano was developed as the most compact variant in the GPT-5 family, designed for deployment in resource-constrained environments and edge computing scenarios. Built to bring next-generation AI capabilities to devices and applications where latency and efficiency are paramount, it distills GPT-5 innovations into a minimal footprint.
1 year newer

Gemini 1.0 Pro
2024-02-15

GPT-5 nano
OpenAI
2025-08-07
Cost per million tokens (USD)

Gemini 1.0 Pro

GPT-5 nano
Context window and performance specifications
Average performance across 1 common benchmarks

Gemini 1.0 Pro

GPT-5 nano
Gemini 1.0 Pro
2024-02-01
GPT-5 nano
2024-05-30
Available providers and their performance metrics

Gemini 1.0 Pro

GPT-5 nano

Gemini 1.0 Pro

GPT-5 nano

Gemini 1.0 Pro

GPT-5 nano
OpenAI
ZeroEval