Compare (Multi-model)

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Compare (Multi-model Fanout)

Fire one prompt at several models and stream their replies in parallel.

1from meshapi import CompareParams, ChatMessage
2
3stream = client.compare.stream(
4 CompareParams(
5 models=[
6 "openai/gpt-4o-mini",
7 "anthropic/claude-sonnet-4.5",
8 "google/gemini-2.5-flash",
9 ],
10 messages=[ChatMessage(role="user", content="Summarize this paragraph in one sentence: ...")],
11 stream=True,
12 )
13)
14
15for event in stream:
16 if event.event == "delta":
17 print(event.data)

Use client.compare.create(params) for a non-streaming side-by-side response with an optional judge-model comparison via comparison_model.