Models & providers¶

A provider is the company or program that runs the AI model — Anthropic (Claude), OpenAI (GPT), Google (Gemini), and so on. agentix talks to all of them through small adapters, so the rest of your code never changes. Switching providers is a one-line edit.

Pick a model¶

Each adapter lives in agentix.providers and needs its matching extra installed.

from agentix.providers.anthropic import AnthropicModel
model = AnthropicModel(model="claude-opus-4-8")     # reads ANTHROPIC_API_KEY

from agentix.providers.openai import OpenAIModel
model = OpenAIModel(model="gpt-4o")                 # reads OPENAI_API_KEY

Whatever you choose, the agent is identical:

agent = Agent(model=model, system_prompt="...", tools=[...])

What's available¶

Adapter	Install	Notes
`AnthropicModel`	`agentix-toolkit[anthropic]`	Claude models
`OpenAIModel`	`agentix-toolkit[openai]`	GPT models; also works with any "OpenAI-compatible" server
`GeminiModel`	`agentix-toolkit[gemini]`	Google Gemini
`BedrockModel`	`agentix-toolkit[bedrock]`	Models hosted on AWS Bedrock
`OllamaModel`	`agentix-toolkit[ollama]`	Models running locally on your machine
`LiteLLMModel`	`agentix-toolkit[litellm]`	One bridge to 100+ providers

→ Runnable gallery: examples/21_providers.py

Running a model locally¶

Want to run a model on your own computer with no API key and no cloud? Use Ollama: install it, start it (ollama serve), pull a model, and point OllamaModel at it.

from agentix.providers.ollama import OllamaModel
model = OllamaModel(model="llama3.1")     # runs on your machine, free

Testing without a real model¶

For tests and learning, MockModel returns answers you write in advance — no network, no key, no cost. See Getting started. To record real responses once and replay them in tests, see Reliability → cassettes.