Supported LLM Models

Current Claude, OpenAI, and Gemini model ids for APIXO LLM Gateway

Use these model ids with the compatible API format you are calling. To switch models, keep the same base URL and API key, then change the model id.

Try models in Playground

Open a model directly in the APIXO Playground:

Claude

• Claude Opus 4.8
• Claude Opus 4.7
• Claude Opus 4.6
• Claude Opus 4.5
• Claude Sonnet 4.6
• Claude Sonnet 4.5
• Claude Sonnet 4.5 20250929
• Claude Haiku 4.5

OpenAI

• GPT-5.5
• GPT-5.4
• GPT-5.4 mini
• GPT-5.3 Codex
• GPT-5.2
• GPT-5.2 Codex
• GPT-5 mini

Gemini

• Gemini 3.5 Flash
• Gemini 3.1 Pro Preview
• Gemini 3.1 Flash-Lite Preview
• Gemini 3 Flash Preview
• Gemini 2.5 Pro
• Gemini 2.5 Flash
• Gemini 2.5 Flash-Lite

Claude models

Use these in the Claude Messages request body model field.

Model id
claude-opus-4-7
claude-opus-4-6
claude-opus-4-6-thinking
claude-opus-4-5-20251101
claude-opus-4-5-20251101-thinking
claude-sonnet-4-6
claude-sonnet-4-6-thinking
claude-sonnet-4-5-20250929
claude-sonnet-4-5-20250929-thinking
claude-haiku-4-5-20251001
claude-haiku-4-5-20251001-thinking

OpenAI Responses models

Use these in the OpenAI Responses request body model field.

Model id
gpt-5.5
gpt-5.4
gpt-5.4-mini
gpt-5.3-codex
gpt-5.2
gpt-5.2-codex
gpt-5-mini

Gemini models

Use these in the Gemini URL path: /v1beta/models/{model}:generateContent.

Model id
gemini-3.1-pro-preview
gemini-3.1-flash-lite-preview
gemini-3-pro-preview
gemini-3-flash-preview
gemini-2.5-pro
gemini-2.5-flash
gemini-2.5-flash-lite

Where the model name goes

Compatible API	Field or path
Claude API	Request body model
OpenAI Responses API	Request body model
Gemini API	URL path /v1beta/models/{model}:generateContent

For pricing and route availability, use the APIXO pricing page as the source of truth.