Remove specific model versions from agentic chat docs (#1052)

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Author: alexromano

docs/cody/capabilities/agentic-chat.mdx

@@ -65,7 +65,7 @@ Pro users can find the agentic chat option in the LLM selector drop-down.
 
 Enterprise customers must opt-in to access this agentic chat feature (reach out to your account team for access). 
 
-For the experimental release, agentic chat is specifically limited to using Claude 3.5 Haiku for the reflection steps and Claude 3.5 Sonnet for the final response to provide a good balance between quality and latency. Therefore, your enterprise instance must have access to both Claude 3.5 Sonnet and Claude 3.5 Haiku to use agentic chat. These models may be changed during the experimental phase to optimize for quality and/or latency.
+For the experimental release, agentic chat is specifically limited to using Claude Haiku for the reflection steps and Claude Sonnet for the final response to provide a good balance between quality and latency. Therefore, your enterprise instance must have access to both Claude Sonnet and Claude Haiku to use agentic chat. We use the latest versions of these models, and can fall back to older versions when necessary. These models may be changed during the experimental phase to optimize for quality and/or latency.
 
 Additionally, enterprise users need to upgrade their supported client (VS Code, JetBrains, and Visual Studio) to the latest version of the plugin by enabling the following feature flags on their Sourcegraph Instance: