v0.40.0

What's Changed

• Bump astral-sh/setup-uv from 5 to 6 by @dependabot in #443
• Add OpenRouter chat model by @piiq in #448
• Add reasoning_effort param to OpenaiChatModel by @jackmpcollins in #451

New Contributors

• @piiq made their first contribution in #448

Full Changelog: v0.39.3...v0.40.0

v0.39.3

What's Changed

• Fix: function call parsing positional args ignoring arg defaults by @jackmpcollins in #439

Full Changelog: v0.39.2...v0.39.3

v0.39.2

What's Changed

• Add tests for Gemini via openai package by @jackmpcollins in #382

Full Changelog: v0.39.1...v0.39.2

v0.39.1

What's Changed

• Add tests and docs for xAI / Grok via OpenaiChatModel by @jackmpcollins in #433

Full Changelog: v0.39.0...v0.39.1

v0.39.0

What's Changed

• Use TypeVar default to remove overloads by @jackmpcollins in #411
• Add missing Field import in docs by @jackmpcollins in #428
• feat: support for passing extra_headers to LitellmChatModel by @ashwin153 in #426

New Contributors

• @ashwin153 made their first contribution in #426

Full Changelog: v0.38.1...v0.39.0

v0.38.1

What's Changed

• fix - function call with no args when using anthropic api by @ananis25 in #408

Full Changelog: v0.38.0...v0.38.1

v0.38.0

What's Changed

• Async streamed response to api message conversion by @ananis25 in #405
• Support AsyncParallelFunctionCall in message_to_X_message by @jackmpcollins in #406

Full Changelog: v0.37.1...v0.38.0

v0.37.1

What's Changed

Anthropic model message serialization now supports StreamedResponse in AssistantMessage. Thanks to @ananis25 🎉

PRs

• add msg-to-anthropic-msg converter for streamedresponse by @ananis25 in #404

New Contributors

• @ananis25 made their first contribution in #404

Full Changelog: v0.37.0...v0.37.1

v0.37.0

What's Changed

The @prompt_chain decorator can now accept a sequence of Message as input, like @chatprompt.

from magentic import prompt_chain, UserMessage

def get_current_weather(location, unit="fahrenheit"):
    """Get the current weather in a given location"""
    return {"temperature": "72", "forecast": ["sunny", "windy"]}

@prompt_chain(
    template=[UserMessage("What's the weather like in {city}?")],
    functions=[get_current_weather],
)
def describe_weather(city: str) -> str: ...

describe_weather("Boston")
'The weather in Boston is currently 72°F with sunny and windy conditions.'

PRs

• Allow Messages as input to prompt_chain by @jackmpcollins in #403

Full Changelog: v0.36.0...v0.37.0

v0.36.0

What's Changed

Document the Chat class and make it importable from the top level.
docs: https://magentic.dev/chat/

from magentic import Chat, OpenaiChatModel, UserMessage

# Create a new Chat instance
chat = Chat(
    messages=[UserMessage("Say hello")],
    model=OpenaiChatModel("gpt-4o"),
)

# Append a new user message
chat = chat.add_user_message("Actually, say goodbye!")
print(chat.messages)
# [UserMessage('Say hello'), UserMessage('Actually, say goodbye!')]

# Submit the chat to the LLM to get a response
chat = chat.submit()
print(chat.last_message.content)
# 'Hello! Just kidding—goodbye!'

PRs

• Use public import for ChatCompletionStreamState by @jackmpcollins in #398
• Make Chat class public and add docs by @jackmpcollins in #401
• Remove unused content None from openai messages by @jackmpcollins in #402

Full Changelog: v0.35.0...v0.36.0