# Discourse AI - AI bot

**URL:** https://meta.discourse.org/t/discourse-ai-ai-bot/266012
**Category:** Site Management
**Tags:** how-to, ai, ai-bot
**Created:** [24 mei 2023 om 06:25 UTC](https://meta.discourse.org/t/discourse-ai-ai-bot/266012 "2023-05-24T06:25:09Z")
**Posts on this page:** 1
**Showing post:** 182

<div class="post-metadata">

### Author: ![Alon1](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/alon1/32/197167_2.png) [@Alon1](https://meta.discourse.org/u/Alon1)
#### Post date: [20 februari 2026 om 16:11 UTC](https://meta.discourse.org/t/discourse-ai-ai-bot/266012/182 "2026-02-20T16:11:28Z")

</div>

Can anyone explain the source of this error when using Claude 4.6 ? (I had Claude 4.5 before and it worked well)

```plaintext
{“type”:“error”,“error”:{“type”:“invalid_request_error”,“message”:“This model does not support assistant message prefill. The conversation must end with a user message.”},“request_id”:“req_011CYqkqNGbr3”}

```

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