The AI Gateway maintains a catalog of known providers and models. This catalog enables automatic provider inference, model validation, and rich metadata for selection strategies.
This catalog is built into the gateway—no configuration required. Models from these providers are automatically available in passthrough mode.
How the catalog works
When you send a request with a model name like gpt-4o, the gateway:
- Looks up the model in its catalog
- Identifies the provider (OpenAI) and author (openai)
- Routes the request to the appropriate provider endpoint
- Applies any configured selection strategies
You can also explicitly specify providers using the provider:model format (for example, openai:gpt-4o).
Known providers
OpenAI
| Field | Value |
|---|
| Provider ID | openai |
| Aliases | openAI, open-ai, open-AI |
| Base URL | https://api.openai.com/v1/ |
| Website | openai.com |
OpenAI models
| Model ID | Display Name | Context Window | Output Tokens | Modalities |
|---|
gpt-5 | GPT-5 | 400,000 | 128,000 | text, image |
gpt-5.1 | GPT-5.1 | 400,000 | 128,000 | text, image |
gpt-5-mini | GPT-5 Mini | 400,000 | 128,000 | text, image |
gpt-5-nano | GPT-5 Nano | 400,000 | 128,000 | text, image |
gpt-5-chat-latest | GPT-5 Chat | 400,000 | 128,000 | text, image |
gpt-4.1 | GPT-4.1 | 1,000,000 | - | text, image |
gpt-4.1-mini | GPT-4.1 mini | 1,000,000 | - | text, image |
gpt-4.1-nano | GPT-4.1 nano | 1,000,000 | - | text, image |
gpt-4o | GPT-4o | 128,000 | 16,384 | text, image, audio |
o4-mini | O4-Mini | 200,000 | 100,000 | text |
o4-mini-deep-research | O4-Mini-Deep-Research | 200,000 | 100,000 | text |
o3-pro | O3-Pro | 128,000 | 100,000 | text |
o3 | O3 | 128,000 | 100,000 | text |
o3-deep-research | O3-Deep-Research | 200,000 | 100,000 | text |
o1-pro | O1-Pro | 200,000 | 100,000 | text |
o1 | O1 | 128,000 | 100,000 | text |
Anthropic
| Field | Value |
|---|
| Provider ID | anthropic |
| Aliases | Anthropic |
| Base URL | https://api.anthropic.com/v1/ |
| Website | anthropic.com |
Anthropic models
| Model ID | Display Name | Context Window | Output Tokens | Modalities |
|---|
claude-3-haiku-20240307 | Claude Haiku 3 | 200,000 | 4,096 | text, image |
claude-3-5-haiku-latest | Claude Haiku 3.5 | 200,000 | 8,192 | text, image |
claude-3-7-sonnet-latest | Claude Sonnet 3.7 | 200,000 | 64,000 | text, image |
claude-sonnet-4-0 | Claude Sonnet 4 | 1,000,000 | 64,000 | text, image |
claude-opus-4-0 | Claude Opus 4 | 200,000 | 32,000 | text, image |
claude-opus-4-1 | Claude Opus 4.1 | 200,000 | 32,000 | text, image |
claude-sonnet-4-5 | Claude Sonnet 4.5 | 1,000,000 | 64,000 | text, image |
claude-opus-4-5 | Claude Opus 4.5 | 200,000 | 64,000 | text, image |
Google
| Field | Value |
|---|
| Provider ID | google |
| Aliases | Google, gemini |
| Base URL | https://generativelanguage.googleapis.com/v1beta/openai/ |
| Website | aistudio.google.com |
Google models
| Model ID | Display Name | Context Window | Output Tokens | Modalities |
|---|
gemini-2.5-pro | Gemini 2.5 Pro | 1,048,576 | 65,535 | text, image, audio, video, file |
gemini-2.5-flash | Gemini 2.5 Flash | 1,048,576 | 65,535 | text, image, audio, video, file |
gemini-2.5-flash-lite | Gemini 2.5 Flash-Lite | 1,048,576 | 65,535 | text, image, audio, video, file |
gemini-2.0-flash | Gemini 2.0 Flash | 1,048,576 | 8,192 | text, image, audio, video, file |
gemini-2.0-flash-lite | Gemini 2.0 Flash-Lite | 1,048,576 | 8,192 | text, image, audio, video, file |
gemini-3-pro-preview | Gemini 3 Pro Preview | 1,000,000 | 65,536 | text, image, audio, video, file |
DeepSeek
| Field | Value |
|---|
| Provider ID | deepseek |
| Aliases | DeepSeek, deep-seek |
| Base URL | https://api.deepseek.com |
| Website | deepseek.com |
DeepSeek models
| Model ID | Display Name | Context Window | Output Tokens | Modalities |
|---|
deepseek-reasoner | deepseek-reasoner | 128,000 | 64,000 | text |
deepseek-chat | deepseek-chat | 128,000 | 8,192 | text |
OpenRouter
| Field | Value |
|---|
| Provider ID | openrouter |
| Base URL | https://openrouter.ai/api/v1/ |
| Website | openrouter.ai |
Hyperbolic
| Field | Value |
|---|
| Provider ID | hyperbolic |
| Base URL | https://api.hyperbolic.xyz/v1/ |
| Website | hyperbolic.xyz |
InceptionLabs
| Field | Value |
|---|
| Provider ID | inceptionlabs |
| Website | inceptionlabs.ai |
Inference.net
| Field | Value |
|---|
| Provider ID | inference-net |
| Base URL | https://api.inference.net/v1/ |
| Website | inference.net |
Using models from the catalog
Simple model reference
Reference models directly by their ID:
{
"model": "gpt-4o",
"messages": [{"role": "user", "content": "Hello"}]
}
Explicit provider
Use the provider:model format for explicit routing:
{
"model": "openai:gpt-4o",
"messages": [{"role": "user", "content": "Hello"}]
}
author/model format:
{
"model": "openrouter:meta-llama/llama-3-70b",
"messages": [{"role": "user", "content": "Hello"}]
}
Custom providers and models
You can extend the catalog by configuring custom providers in your Traffic Policy. See Custom Providers for configuration details.
providers:
- id: "custom-ollama"
base_url: "https://ollama.internal"
models:
- id: "llama3"
- id: "mistral"
Catalog updates
The model catalog is updated periodically to include new models and providers. For immediate access to models not yet in the catalog, add them explicitly to your provider configuration. 
