Google: Gemini 3.1 Pro Preview vs OpenAI: GPT-5.6 Sol Pro

They cost about the same for input tokens: Google: Gemini 3.1 Pro Preview $2.00 per M, OpenAI: GPT-5.6 Sol Pro $2.00 per M. OpenAI: GPT-5.6 Sol Pro is 1.2× cheaper for output tokens: Google: Gemini 3.1 Pro Preview costs $12.00 per M and OpenAI: GPT-5.6 Sol Pro costs $10.00 per M. About the same: Google: Gemini 3.1 Pro Preview takes up to 1,048,576 tokens of context and OpenAI: GPT-5.6 Sol Pro up to 1,050,000. Google: Gemini 3.1 Pro Preview accepts audio, file, image, text, video; OpenAI: GPT-5.6 Sol Pro accepts file, image, text.

Google: Gemini 3.1 Pro PreviewOpenAI: GPT-5.6 Sol Pro
Model idgoogle/gemini-3.1-pro-previewopenai/gpt-5.6-sol-pro
Input$2.00 per M$2.00 per M
Output$12.00 per M$10.00 per M
Context length1,048,576 tokens1,050,000 tokens
Acceptsaudio, file, image, text, videofile, image, text
Producestexttext
Served bygoogleopenai

Prices are the providers' list prices per million tokens, as of . Both run on your own provider key through one OpenAI-compatible endpoint, with no fee on the tokens.