> ## Documentation Index
> Fetch the complete documentation index at: https://praison.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Providers
> LLM provider integrations
Providers connect your agents to various LLM services.
```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
graph LR
subgraph "Providers"
A[🤖 Agent] --> P[🔌 Provider]
P --> O[OpenAI]
P --> AN[Anthropic]
P --> OL[Ollama]
P --> AZ[Azure]
end
classDef agent fill:#6366F1,stroke:#7C90A0,color:#fff
classDef provider fill:#10B981,stroke:#7C90A0,color:#fff
class A agent
class P,O,AN,OL,AZ provider
```
## Quick Start
```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
use praisonai::Agent;
// OpenAI (default)
let agent = Agent::new()
.model("gpt-4o")
.build()?;
// Anthropic
let agent = Agent::new()
.model("claude-3-opus")
.build()?;
// Ollama (local)
let agent = Agent::new()
.model("ollama/llama3")
.build()?;
```
***
## Supported Providers
| Provider | Models | Setup |
| --------- | --------------------- | ------------------- |
| OpenAI | gpt-4o, gpt-4o-mini | `OPENAI_API_KEY` |
| Anthropic | claude-3-opus, sonnet | `ANTHROPIC_API_KEY` |
| Ollama | llama3, mistral | Install Ollama |
| Azure | Azure OpenAI models | `AZURE_*` vars |
***
## Related
LLM configuration
Unified gateway