READY TO POST:
anthropic's new sdk version 0.123.0 might be teasing new claude models like 'claude-opus-4-8' and 'claude-haiku-4-5'. 👀
looks like anthropic is working on a beta stream for messages in their latest sdk. get ready for some new ways to interact with claude.
anthropic 0.122.0 -> 0.123.0: +113 strings, -427 strings, 45 interesting [model_id] (2) + py client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])]) state = BetaFallbackState() with state: message = client.beta.messages.create(**params) + python with client.messages.stream( model="claude-haiku-4-5", max_tokens=1024, messages=[{"role": "user", "content": "Hello!"}], ) as stream: for text in stream.text_stream: print(text, end="", flush=True) [feature_flag] (2) + py client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])]) state = BetaFallbackState() with state: message = client.beta.messages.create(**params) + py with client.beta.messages.stream(...) as stream: for chunk in stream: ... [sentence] (45) + py client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])]) state = BetaFallbackState() with state: message = client.beta.messages.create(**params) + python with client.messages.stream( model="claude-haiku-4-5", max_tokens=1024, messages=[{"role": "user", "content": "Hello!"}], ) as stream: for text in stream.text_stream: print(text, end="", flush=True) + py with client.beta.messages.stream(...) as stream: for chunk in stream: ... + .get_final_text() can only be called when the API returns a `text` content block. The API returned {','.join([b.type for b in message.content])} content block type(s) that you can access by calling get_final_message().content + : a field set to a value overrides it, a field explicitly + : a key set to a value overrides it, a key explicitly + ; the whole object is dropped when nothing is left. Always a fresh dict; + ID of the service account that performed the write (a `svac_...` value). + User-provided description for the environm
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