GPT-5.6 Sol Proon Krater.ai
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. Cost note: pro mode spends far more
Released July 9, 2026
Specifications
GPT-5.6 Sol Pro at a glance
Context
1.1M tokens
Max output
128K tokens
Input
File, Image, Text
Output
Text
Input price
$4.00 / 1M
Output price
$20.00 / 1M
Knowledge cutoff
2026-02-16
Krater rank
#22
Is ChatGPT down?
ChatGPT not loading? Krater checks OpenAI every 5 minutes and shows what to switch to while it is down.
Live ChatGPT statusCapabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Compare
Compare GPT-5.6 Sol Pro
GPT-5.6 Sol Pro vs GPT-6 Luna
GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol.
Open comparisonGPT-5.6 Sol Pro vs GPT-6 Luna Pro
GPT-6 Luna Pro is the same underlying model as GPT-6 Luna, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Cost note: pro mode spends far more
Open comparisonGPT-5.6 Sol Pro vs GPT-6.1 Sol Pro
GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
Open comparisonFAQ
Questions about GPT-5.6 Sol Pro
Clear answers based on the model catalog and Krater access.
Ready to use GPT-5.6 Sol Pro?
Access leading models in one focused workspace.