$4 per 1M input tokens and $20 per 1M output tokens; cached input $0.40 per 1M. A typical benchmark task costs about $1.99 at max effort.
Is GPT-5.6 Sol free to use?›
There is no free API; the cheapest paid price is $4 per 1M input tokens.
How good is GPT-5.6 Sol, and what is it best at?›
#11 of 336 in Chat & Knowledge, #14 of 134 in Coding, #20 of 135 in Agents & Tool Use, #24 of 197 in Writing & Language, #7 of 125 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is GPT-5.6 Sol better than GPT-5.5?›
On FrontierMath Erdos, GPT-5.6 Sol scores 0 vs 0 — about the same. It is 5% cheaper per task.
How can I use GPT-5.6 Sol?›
Through the API of Amazon Bedrock, Azure, OpenAI.
What is the context window of GPT-5.6 Sol?›
1.05M tokens, with up to 128K output tokens.
When was GPT-5.6 Sol released? Is there a newer version?›
Released 2026-07-09. It has been superseded by GPT-6 Sol.
Is GPT-5.6 Sol open source?›
No, GPT-5.6 Sol is a closed model available through an API. The closest open-weights option here is Kimi K3.
Can GPT-5.6 Sol read images?›
It accepts text and images, PDF files as input.
What is GPT-5.6 Sol?›
GPT-5.6 Sol is a closed language model from OpenAI, released Jul 2026, the successor to GPT-4.
OpenKimi K3maxsamesame$2.00Context: 1.05M → 1M+4
BetterClaude Sonnet 5.5max+2.9+175%$5.46Context: 1.05M → 1M+6