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PraisonAI integrates with the AutoGen family via a version router that picks the right adapter at runtime.
AutoGen v0.4 (framework: autogen_v4) and the standalone AG2 adapter (framework: ag2) are not yet implemented in PraisonAI. Calling them raises NotImplementedError with a pointer to framework: autogen (v0.2). Track issue #1590 for implementation status.
Need a framework that isn’t listed here? See Framework Adapter Plugins to register your own via Python entry points.

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Which AutoGen Option to Choose

Only AutoGen v0.2 is working today. Both v0.4 and AG2 adapters are stubs that raise NotImplementedError.
FrameworkInstallBest ForStatus
framework: autogenpip install "praisonai-frameworks[autogen]"Family router — picks variant via AUTOGEN_VERSION✅ Working (v0.2 only)
framework: autogen_v2pip install "praisonai-frameworks[autogen]"Pin v0.2 directly, skip the router✅ Working
framework: autogen_v4pip install "praisonai-frameworks[autogen-v4]"Future AutoGen v0.4 support🚧 Stub — raises NotImplementedError
framework: ag2pip install "praisonai-frameworks[ag2]"Future AG2 support🚧 Stub — raises NotImplementedError

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Auto Version Selection

framework: autogen routes to a family adapter that picks the concrete version at runtime. Control it with the YAML autogen_version field (takes precedence) or AUTOGEN_VERSION:
SourcePrecedence
autogen_version: in team YAMLHighest — overrides env var
$AUTOGEN_VERSION env varUsed when YAML field is absent
"auto"Default when neither is set
framework: autogen
autogen_version: v0.2   # "auto" | "v0.2" | "v0.4"
autogen_version / AUTOGEN_VERSIONBehaviour
auto (default)Pick autogen_v2 if available, else autogen_v4 (with warning), else ag2. If none available, raise ImportError with install hints.
v0.2Force autogen_v2. Warns if not installed; still returns the name (caller hits ImportError at run).
v0.4Force autogen_v4. Currently raises NotImplementedError at run — adapter is a stub.
ag2Force ag2. Currently raises NotImplementedError at run — adapter is a stub.
auto no longer prefers v0.4. Until the v0.4 adapter is implemented (implemented = True), it is treated as unavailable and auto lands on v0.2.
# Force v0.2 (default behaviour)
export AUTOGEN_VERSION=v0.2
praisonai agents.yaml --framework autogen

# Explicit v0.2 alias — skip the router entirely
praisonai agents.yaml --framework autogen_v2
If you write framework: autogen_v4 or framework: autogen_v2 directly in YAML, the version-resolution step is skipped — you get exactly that adapter. The AUTOGEN_VERSION env var only applies when framework: autogen is used.
If no AutoGen variant is installed, the family router raises: 
# No AutoGen variant installed → ImportError:
#   No AutoGen variant is available. Install with:
#     pip install 'praisonai-frameworks[autogen]' for v0.2
#     pip install 'praisonai-frameworks[autogen-v4]' for v0.4
#     pip install 'praisonai-frameworks[ag2]' for AG2

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AutoGen v0.2

Original AutoGen v0.2 support — the only fully-working AutoGen adapter today.
1

Install

pip install "praisonai-frameworks[autogen]"
2

Create YAML file

framework: autogen
topic: Create a movie script about cats on Mars

roles:
  researcher:
    role: Research Analyst
    goal: Gather information about Mars and cat behavior
    backstory: Skilled researcher with focus on accurate information.
    tasks:
      research_task:
        description: Research Mars environment and cat behavior for {topic}
        expected_output: Research findings document with key facts
3

Run

export OPENAI_API_KEY=sk-...
praisonai agents.yaml --framework autogen

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Pin v0.2 directly

Use autogen_v2 to skip the family router and get AutoGen v0.2 unconditionally: 
framework: autogen_v2
topic: Create a movie script about cats on Mars

roles:
  researcher:
    role: Research Analyst
    goal: Gather information about Mars and cat behavior
    backstory: Skilled researcher with focus on accurate information.
    tasks:
      research_task:
        description: Research Mars environment and cat behavior for {topic}
        expected_output: Research findings document with key facts

praisonai agents.yaml --framework autogen_v2

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AutoGen v0.2 Features

  • Simple Architecture: UserProxyAgent + AssistantAgent with initiate_chats
  • Configuration: Uses config_list format for LLM configuration
  • Code Execution: Built-in code_execution_config with working directory
  • Termination: Checks for "terminate" or "TERMINATE" in message content

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AutoGen v0.4

The autogen_v4 adapter is currently a stub. framework: autogen_v4 raises NotImplementedError at runtime:
NotImplementedError: AutoGen v0.4 adapter is not yet implemented. Use framework='autogen' (v0.2) or pin AUTOGEN_VERSION=v0.2.
Use framework: autogen (or framework: autogen_v2) for working AutoGen support.
AutoGenV4Adapter.implemented = False causes is_available() to return False, so framework: autogen and AUTOGEN_VERSION=auto will not route to it. When implemented, AutoGen v0.4 will use autogen-agentchat + autogen-ext with OpenAIChatCompletionClient and RoundRobinGroupChat. Track issue #1590 for implementation status.

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AG2

The standalone AG2Adapter is currently a stub. framework: ag2 raises NotImplementedError at runtime:
NotImplementedError: AG2 adapter is not yet implemented. Use framework='autogen' (v0.2) or pin AUTOGEN_VERSION=v0.2.
Use framework: autogen for working AutoGen/AG2-family support via v0.2.
AG2Adapter.implemented = False causes is_available() to return False, so AUTOGEN_VERSION=ag2 will log a warning and fall through. Track issue #1590 for implementation status.

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How the AutoGen Family Router Works

AutoGenFamilyAdapter (registered as autogen) is a router — it never runs directly. Instead it calls resolve() to get the concrete adapter, which the orchestrator then calls .run() on. AutoGenFamilyAdapter.run() raises RuntimeError if called directly — this is intentional. Always go through the orchestrator.

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Troubleshooting

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Import Errors

When no AutoGen variant is installed and framework: autogen is used: 
ImportError: No AutoGen variant is available. Install with:
  pip install 'praisonai-frameworks[autogen]' for v0.2
  pip install 'praisonai-frameworks[autogen-v4]' for v0.4
  pip install 'praisonai-frameworks[ag2]' for AG2
Fix: pip install "praisonai-frameworks[autogen]" for v0.2 (the only working option today).

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NotImplementedError on v0.4 or AG2

NotImplementedError: AutoGen v0.4 adapter is not yet implemented. Use framework='autogen' (v0.2) or pin AUTOGEN_VERSION=v0.2.
NotImplementedError: AG2 adapter is not yet implemented. Use framework='autogen' (v0.2) or pin AUTOGEN_VERSION=v0.2.
Switch to framework: autogen or framework: autogen_v2. Both adapters are stubs pending issue #1590.

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Pinning AutoGen versions

Setting AUTOGEN_VERSION=v0.4 or AUTOGEN_VERSION=ag2 (or YAML autogen_version: v0.4) now raises ImportError if the requested variant is not registered, instead of silently falling back to v0.2. Workflow-level autogen_version in config/YAML takes precedence over the env var. Use AUTOGEN_VERSION=auto (or omit it) to allow fallback. Since autogen_v4 and ag2 adapters are unregistered stubs by default, --framework autogen resolves to v0.2 unless you install an entry-point plugin that registers autogen_v4 or ag2.

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AUTOGEN_VERSION=v0.4 warns but continues

When AUTOGEN_VERSION=v0.4 is set but v0.4 is not installed (or is a stub), the router logs a warning and returns "autogen_v4" — the caller then hits NotImplementedError when .run() is invoked. This is expected behaviour; switch to v0.2. Plugin authors: Framework adapters now accept dispatcher kwargs (tools_dict, agent_callback, task_callback, cli_config). See Framework Adapter Plugins for custom adapter development.

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Best Practices

framework: autogen is the recommended name — it routes through the family adapter and will automatically switch to v0.4 or AG2 once those adapters are implemented, without needing YAML changes.
If you need to guarantee v0.2 regardless of AUTOGEN_VERSION, write framework: autogen_v2. This skips the family router entirely.
Both raise NotImplementedError today. Using them will fail at runtime. Wait for issue #1590.
is_available("autogen") from _framework_availability tests whether the autogen Python package is importable. AutoGenV4Adapter().is_available() additionally folds in the implemented = False marker. Always use the adapter method to test dispatch-readiness.

CrewAI

CrewAI framework integration

PraisonAI Agents

PraisonAI native agents framework