`gpt-4o` will point to `gpt-4o-2024-08-06` after 2nd of October 2024
anyway. At that time, we can revert to pointing to `gpt-4o`.
The reason `gpt-4o-2024-08-06` was chosen now instead of `gpt-4o`:
- the `max_response_tokens` configuration was set to 16k, which matches
`gpt-4o-2024-08-06`, but is too large for `gpt-4o` (max 4k)
- baibot's own configs for dynamically created agents, as well as static
config examples use `gpt-4o-2024-08-06` and the larger
`max_response_tokens` value
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