How many parameters does GPT-5.6 Sol Pro have?

Parameter count for GPT-5.6 Sol Pro is not available. See the Hugging Face model page for full specifications.

Who created GPT-5.6 Sol Pro?

GPT-5.6 Sol Pro was published by OpenAI on Hugging Face.

GPT-5.6 Sol Pro

Name: GPT-5.6 Sol Pro
Author: OpenAI

Multimodalby OpenAI·Model page ↗

OpenAI's GPT-5.6 Sol Pro, a multimodal model with 1M-token context for image, file, and text inputs.

Max output

Most tokens the model can return in a single response.

128Ktokens

Pricing

per 1M tokens

Input$5 /1M

Output$30 /1M

Cache read$0.5 /1M

Cache write$6.25 /1M

Web search$0.01

Model Description

GPT-5.6 Sol Pro is the same underlying model as GPT-5.6 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks.

Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Author

OpenAI

Organization · ✓

openai

Details

Downloads—

Likes—

AccessClosed Source

Context1.1M tokens

Input price$5 /1M

Output price$30 /1M

Knowledge cutoffFeb 16, 2026

CreatedJul 9, 2026

Updated—

View on Hugging Face

Get the full context.