Model Catalog
Approved foundation models available to OneMain teams across OpenAI, AWS Bedrock, and Google Gemini.
GPT-5.5
OpenAI
OpenAI's newest frontier reasoning model for the most complex coding and professional work, with text and image input and configurable reasoning effort.
GPT-5.5 pro
OpenAI
Highest-compute variant of GPT-5.5 that thinks harder to deliver consistently better answers on the hardest professional tasks.
Claude Opus 4.8
Anthropic
Anthropic's most capable model for complex reasoning, long-horizon agentic coding, and high-autonomy work, available on Bedrock.
Claude Sonnet 4.6
Anthropic
Anthropic's balanced model offering the best combination of speed and intelligence with extended and adaptive thinking.
Amazon Nova Pro
Amazon
Amazon's balanced multimodal model offering strong accuracy, speed, and cost across text, image, and video inputs.
Gemini 3.1 Pro
Google's most advanced reasoning model for complex problem-solving, deep reasoning, and frontier coding tasks.
Gemini 3.5 Flash
Most intelligent flash-class model for sustained frontier performance at high volume.