Comprehensive side-by-side LLM comparison
Gemini 3 Pro leads with 11.4% higher average benchmark score. Gemini 3 Pro offers 575.4K more tokens in context window than GPT-5. Gemini 3 Pro is $127.50 cheaper per million tokens. Overall, Gemini 3 Pro is the stronger choice for coding tasks.
Google DeepMind
Gemini 3 Pro, released by Google in November 2025, is a large language model from the Gemini 3 family designed for complex reasoning, broad world knowledge, and multi-step problem solving. It features a 1M token context window, 64K maximum output tokens, and native multimodal input including text, images, audio, and video. Gemini 3 Pro targets research-grade reasoning, advanced data analysis, and applications requiring comprehensive understanding across diverse input formats.
OpenAI
GPT-5, released by OpenAI on August 7, 2025, is a large language model that combines direct generation and extended reasoning in a single unified system with a built-in routing mechanism. It features a 400K token context window, 128K maximum output tokens, native multimodal support (text, image, audio, video), and demonstrated strong results across coding, mathematics, visual understanding, and health benchmarks at release. GPT-5 targets complex multi-step tasks including advanced coding, mathematical problem solving, and long-context analysis.
3 months newer

GPT-5
OpenAI
2025-08-07

Gemini 3 Pro
Google DeepMind
2025-11-18
Cost per million tokens (USD)
Gemini 3 Pro
GPT-5
Context window and performance specifications
Average performance across 7 common benchmarks
Gemini 3 Pro
GPT-5
Performance comparison across key benchmark categories
Gemini 3 Pro
GPT-5
2025-05
Available providers and their performance metrics
Gemini 3 Pro
Google Cloud Vertex AI
GPT-5
Gemini 3 Pro
GPT-5
Gemini 3 Pro
GPT-5
GPT-5
OpenAI