Model Catalog

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

28 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

GPT-5.4

OpenAI

Affordable frontier reasoning model for complex coding and professional tasks with text and image input.

Approved
GA OpenAI

GPT-5.4 mini

OpenAI

OpenAI's strongest mini model for coding, computer use, and subagents at lower cost.

Approved
GA OpenAI

GPT-5.4 pro

OpenAI

Higher-compute variant of GPT-5.4 for more reliable answers on demanding 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

Claude Haiku 4.5

Anthropic

Anthropic's fastest model with near-frontier intelligence and extended thinking support.

Approved
GA Bedrock Anthropic

Claude Opus 4.5

Anthropic

Opus 4.5 reasoning model with extended thinking, still available on Bedrock.

Approved
GA Bedrock

Claude Sonnet 4.5

Anthropic

Balanced Sonnet 4.5 model with extended thinking, available on Bedrock.

Approved
GA Bedrock

Claude 3.5 Haiku

Anthropic

Fast, cost-efficient Claude 3.5 generation model still listed as available on Bedrock.

Approved
GA Bedrock

Claude Opus 4.1

Anthropic

Claude Opus 4.1, deprecated by Anthropic and scheduled for retirement on August 5, 2026.

Denied
Deprecated Bedrock

Llama 3.3 70B Instruct

Meta

Meta's 70-billion-parameter model with improved efficiency, delivering strong reasoning and coding with a 128K context window.

Approved
GA Bedrock

Llama 3.1 405B Instruct

Meta

Meta's largest open model with 405 billion parameters and a 128K context window, supporting tool use and multilingual tasks.

Approved
GA Bedrock

Llama 3.1 70B Instruct

Meta

Meta's 70-billion-parameter model with a 128K context window and support for tool use and code generation.

Approved
GA Bedrock

Llama 3.1 8B Instruct

Meta

Meta's compact 8-billion-parameter model with a 128K context window, suitable for edge deployment and fine-tuning.

Approved
GA Bedrock

Mistral Large 3

Mistral

Mistral AI's 675-billion-parameter model with strong performance on coding, reasoning, and multilingual tasks.

Approved
GA Bedrock

Mistral Large

Mistral

Mistral AI's flagship model with strong reasoning, multilingual support, and a 32K context window for complex enterprise tasks.

Approved
GA Bedrock

Mixtral 8x7B Instruct

Mistral

Mistral AI's sparse mixture-of-experts model with 8 experts of 7B parameters each, delivering strong performance at fast inference speeds.

Approved
GA Bedrock
C

Cohere Command R+

Cohere

Cohere's model for complex RAG workflows, multi-step tool use, and enterprise tasks with a 128K context window.

Approved
GA Bedrock
C

Cohere Command R

Cohere

Cohere's scalable LLM optimized for retrieval-augmented generation and tool use in enterprise applications with a 128K context window.

Approved
GA Bedrock

OpenAI gpt-oss-120b

OpenAI

OpenAI's open-weight 120-billion-parameter model available on Amazon Bedrock for reasoning and coding workloads.

Approved
GA Bedrock OpenAI

OpenAI gpt-oss-20b

OpenAI

OpenAI's open-weight 20-billion-parameter model available on Amazon Bedrock for lightweight reasoning and chat.

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

Gemini 3 Flash

Google

Frontier-class flash model delivering performance rivaling larger models at lower cost.

Under review
Preview Gemini

Gemini 2.5 Pro

Google

Advanced reasoning and coding model with deep thinking capabilities for complex tasks.

Approved
GA Gemini

Gemini 2.5 Flash

Google

Best price-performance model for low-latency, high-volume tasks with thinking support.

Approved
GA Gemini

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