OpenAI's GPT-6.1 Sol Transforms CodeRabbit's Security Vulnerability Detection

OpenAI's latest mid-tier reasoning model, GPT-6.1 Sol, is powering a significant leap in automated security vulnerability detection through CodeRabbit's Deep Scan feature, which can now identify thousands of critical flaws across entire codebases rather than individual changes. Released on September 29, 2026, GPT-6.1 Sol represents OpenAI's answer to the demand for high-intelligence coding assistance at lower cost—delivering near-parity performance with the flagship GPT-6 Astra model at one-fifth the token price ($2 input, $10 output per million tokens) and a context window of 1.05 million tokens.