Comprehensive side-by-side LLM comparison
GPT-5 leads with 17.9% higher average benchmark score. GPT-5 offers 265.9K more tokens in context window than Gemma 3 12B. Gemma 3 12B is $11.10 cheaper per million tokens. Overall, GPT-5 is the stronger choice for coding tasks.
Gemma 3 12B was developed as part of the third generation of Google's open-source model family, designed to provide enhanced capabilities in a mid-sized format. Built with improved architecture and training techniques, it balances performance with practical deployment considerations for diverse use cases.
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.
4 months newer

Gemma 3 12B
2025-03-12

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

Gemma 3 12B

GPT-5
Context window and performance specifications
Average performance across 3 common benchmarks

Gemma 3 12B

GPT-5
GPT-5
2024-09-30
Available providers and their performance metrics

Gemma 3 12B
DeepInfra

GPT-5

Gemma 3 12B

GPT-5

Gemma 3 12B

GPT-5
OpenAI
ZeroEval