enable max tolkens for anthropic/claude-3-sonnet-20240229 about open-webui HOT 15 CLOSED

it is a free key that i'm are using

it does however work on

So its not the key that are the problem.

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I have a suspicion that it's an issue on the LiteLLM-side, could you try isolating the issue by trying with LiteLLM only? Keep us updated!

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I have a suspicion that it's an issue on the LiteLLM-side, could you try isolating the issue by trying with LiteLLM only? Keep us updated!

I'm not so sure that it's LiteLLM to blame here, I've tried now with an older version of it and the same behaviour is happening on Claude 2 as well, from other clients than WebUI. I believe this behavior started the day that Claude 3 was released. By chance @bjornjorgensen are you using an Anthropic developer account like mine? I am beginning to wonder if they simply limit max_tokens now for free dev keys.

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Update: now I'm not so sure where the blame lies. Testing in another chat app works fine with Claude 3 endpoints. So it could indeed be a LiteLLM issue then, but it also wasn't working with older versions of it that previously did work? Really need someone with actual paid API keys to test this I think.

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Yes I just tried it with Lobechat as well and got a full response. So ball seems to be back in LiteLLM's court but I need to do further testing with components in isolation to be really certain of this.

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So after futher testing... I can only observe this happening when WebUI is involved. So it seems it may be something to do with our code, I just cannot at the moment nail down what it could possibly be. It seemingly only affects Claude API via LiteLLM in Open WebUI

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are there any configs that over rights tolkens that it can print on outputs?

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@bjornjorgensen nah, in our testing we've checked we're not sending anything like that would limit the max tokens, but nonetheless the API response says the stop reason is length which would indicate that it's been given one and reached it... very strange. Still being investigated and I hope we'll have an answer soon!

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Ladies and gentleman, we got em. Claude's API now requires that the max_tokens param be sent in the payload, and LiteLLM will set a default of 256 tokens if you don't specify this. Currently the WebUI does not send a max_tokens param when using external APIs, so the proposed fix would be to add that feature, or allow this parameter override to be set in the LiteLLM configuration UI. For now, it can be worked around by mounting and modifying the config.yaml file as such:

- litellm_params:
    api_key: your_api_key
    model: anthropic/claude-3-sonnet-20240229
    max_tokens: 4096
  model_info:
    id: 810226a0-61e2-4d97-9de0-822bd4300fcd
  model_name: claude-3-sonnet

Note: the maximum value is 4096, you'll get an error from Anthropic's API if you request more.

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https://docs.anthropic.com/claude/docs/models-overview

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v0.1.111 (not merged to :main yet) has a new field in the LiteLLM UI to configure the max_tokens parameter override, which will make modifying your config.yaml by hand unneccesary. This can be tested now in the :dev branch.

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max_tokens: 4096 should be explicitly set from the settings!

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yes, I have to delete the old one and add it back.. but now it works :)
Thanks

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hmm.. have some issues to day with dev images.. i cant see whats wrong there but when I try main it works
but i have deleted my storage for openchat and now i have to set everything up again. I add claude3 opus without seting enything othere then the model name and api key

so must i set max_tokens: 4096 when i use claude-3 models? if so then it must be in a readme somewhere.

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@bjornjorgensen I haven't migrated this to the docs site yet, there's a thread:

• #1038

max_tokens must be 4096 to get the most out of Claude API, as noted there.

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