About
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Related Models
Pricing
Input
$5.00
per 1M tokens
Output
$30.00
per 1M tokens
Blended
$11.25
per 1M tokens
Cheaper than 4% of models. Median price is $0.61/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
Daily
$11.25
Monthly
$337.50
vs. Similar Models
OpenAI: GPT-5.5
$11.250%
GPT-5.5 (high)
$11.250%
GPT-5.5 (medium)
$11.250%
GPT-5.5 (low)
$11.250%
Performance
Context Window
1.1M
tokens
Larger than 96% of models
Max Output
128K
tokens
12% of context
Context Window Comparison
OpenAI: GPT-5.5
1.1MSame
OpenAI: GPT-5.4
1.1MSame
OpenAI GPT Latest
1.1MSame