Comprehensive side-by-side LLM comparison
GPT-5 leads with 14.1% higher average benchmark score. Gemini 2.5 Flash offers 586.1K more tokens in context window than GPT-5. Gemini 2.5 Flash is $8.45 cheaper per million tokens. Overall, GPT-5 is the stronger choice for coding tasks.
Gemini 2.5 Flash represents a continued evolution of Google's efficient multimodal models, designed to deliver enhanced capabilities while maintaining the performance characteristics valued in the Flash series. Built to serve high-throughput applications with improved quality, it advances the balance between speed and intelligence.
OpenAI
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
2 months newer

Gemini 2.5 Flash
2025-05-20

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

Gemini 2.5 Flash

GPT-5
Context window and performance specifications
Average performance across 6 common benchmarks

Gemini 2.5 Flash

GPT-5
Performance comparison across key benchmark categories

Gemini 2.5 Flash

GPT-5
GPT-5
2024-09-30
Gemini 2.5 Flash
2025-01-31
Available providers and their performance metrics

Gemini 2.5 Flash
ZeroEval


Gemini 2.5 Flash

GPT-5

Gemini 2.5 Flash

GPT-5
GPT-5
OpenAI
ZeroEval