Gemini 2.5 Pro vs GPT-5.6 Terra

Gemini 2.5 Pro leads in 5 of 8 categories

Arena ELO

Gemini 2.5 Pro

Cheaper

Gemini 2.5 Pro

Faster

Gemini 2.5 Pro

Detailed Comparison

Category	Gemini 2.5 Pro	GPT-5.6 Terra
Provider	Google	OpenAI
Context Window	1M WIN	128K
Input Price ($/1M)	$1.25 WIN	N/A
Output Price ($/1M)	$10 WIN	N/A
Arena ELO	1310 WIN	N/A
Coding	75.6% LiveCodeBench	N/A
Reasoning	84.6% GPQA Diamond	N/A
Speed (tokens/sec)	~60 t/s WIN	N/A
Open Source	No	No

Frequently Asked Questions

Which is better for coding, Gemini 2.5 Pro or GPT-5.6 Terra?

Gemini 2.5 Pro scores 75.6% LiveCodeBench on coding benchmarks, while GPT-5.6 Terra scores N/A.

Which has a larger context window?

Gemini 2.5 Pro supports 1M context, while GPT-5.6 Terra supports 128K.

Is Gemini 2.5 Pro or GPT-5.6 Terra open source?

Gemini 2.5 Pro is proprietary. GPT-5.6 Terra is proprietary.

Related Articles

Gemini 3.5 Flash lets you script computer use

OpenAI narrows GPT-5.6 rollout after U.S. request

Xcode 26.6 Adds Gemini to Apple’s AI Coding Stack

Google Pushes Gemini 3.5 Pro to July

Gemini 3.5 Flash makes computer use a default, not a demo

Gemini 3.5 Pro 迟到暴露了谷歌节奏问题

More Comparisons

Gemini 2.5 Pro vs Claude Opus 4.5 Gemini 2.5 Pro vs Llama 4 Scout Gemini 2.5 Pro vs Claude Sonnet 4.6 Gemini 2.5 Pro vs Claude Haiku 4.5 Gemini 2.5 Pro vs GLM-5.2 Gemini 2.5 Pro vs Qwen 3.6 Gemini 2.5 Pro vs Claude Fable 5 Gemini 2.5 Pro vs Kimi K2.7 Code GPT-5.6 Terra vs Claude Opus 4.5 GPT-5.6 Terra vs Llama 4 Scout GPT-5.6 Terra vs Claude Sonnet 4.6 GPT-5.6 Terra vs Claude Haiku 4.5 GPT-5.6 Terra vs GLM-5.2 GPT-5.6 Terra vs Qwen 3.6 GPT-5.6 Terra vs Claude Fable 5 GPT-5.6 Terra vs Kimi K2.7 Code