India, Sept. 29 -- OpenAI has launched a cheaper AI model, GPT-6.1 Sol, saying it offers performance close to its more advanced GPT-6 Astra at a fraction of the cost.

"We're introducing GPT-6.1 Sol, an upgrade to GPT-6 Sol that nearly matches GPT-6 Astra's intelligence on agentic coding, computer use, and professional work at one-fifth of Astra's standard input and output token prices," OpenAI said in a statement.

Sharing details about the model, OpenAI said cached input would cost just $0.10 per million tokens - 95% less than its standard input pricing and 50% less than the cached input price of GPT-6 Sol.

The company said the lower cost would give developers more room to build and run capable AI agents that can reuse context across m...