Model Catalog

Approved foundation models available to OneMain teams across OpenAI, AWS Bedrock, and Google Gemini.

7 models

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.

Approved
GA OpenAI

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.

Approved
GA OpenAI

Claude Opus 4.8

Anthropic

Anthropic's most capable model for complex reasoning, long-horizon agentic coding, and high-autonomy work, available on Bedrock.

Approved
GA Bedrock Anthropic Vertex

Claude Sonnet 4.6

Anthropic

Anthropic's balanced model offering the best combination of speed and intelligence with extended and adaptive thinking.

Approved
GA Bedrock Anthropic Vertex
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Amazon Nova Pro

Amazon

Amazon's balanced multimodal model offering strong accuracy, speed, and cost across text, image, and video inputs.

Approved
GA Bedrock

Gemini 3.1 Pro

Google

Google's most advanced reasoning model for complex problem-solving, deep reasoning, and frontier coding tasks.

Under review
Preview Gemini

Gemini 3.5 Flash

Google

Most intelligent flash-class model for sustained frontier performance at high volume.

Approved
GA Gemini

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