AccessDenied for claude and meta models. I was granted access earlier today. waiting a few hours. still an issue

Claude
```
{
'modelId': 'anthropic.claude-3-5-sonnet-20240620-v1:0',
'messages': [
{
'role': 'user',
'content': [{'text': 'Find an image with a dog.'}]
}
],
'inferenceConfig': {'maxTokens': 4096, 'temperature': 0.5}
}
Thinking...
An error occurred (AccessDeniedException) when calling the Converse
operation: You don't have access to the model with the specified model ID.
Error: An error occurred (AccessDeniedException) when calling the Converse
operation: You don't have access to the model with the specified model ID.
Traceback (most recent call last):
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/queueing.py", line 536, in process_events
response = await route_utils.call_process_api(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/route_utils.py", line 321, in call_process_api
output = await app.get_blocks().process_api(
```

And llama3-8b
```
{
'modelId': 'meta.llama3-1-8b-instruct-v1:0',
'messages': [
{
'role': 'user',
'content': [{'text': 'Find an image with a dog.'}]
}
],
'inferenceConfig': {'maxTokens': 4096, 'temperature': 0.5}
}
Thinking...
An error occurred (AccessDeniedException) when calling the Converse
operation: You don't have access to the model with the specified model ID.
Error: An error occurred (AccessDeniedException) when calling the Converse
operation: You don't have access to the model with the specified model ID.
Traceback (most recent call last):
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/queueing.py", line 536, in process_events
response = await route_utils.call_process_api(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/route_utils.py", line 321, in call_process_api
output = await app.get_blocks().process_api(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/blocks.py", line 1935, in process_api
result = await self.call_function(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/blocks.py", line 1532, in call_function
prediction = await utils.async_iteration(iterator)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/utils.py", line 671, in async_iteration
return await iterator.__anext__()
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/utils.py", line 776, in asyncgen_wrapper
response = await iterator.__anext__()
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/chat_interface.py", line 653, in _stream_fn
first_response = await async_iteration(generator)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/utils.py", line 671, in async_iteration
return await iterator.__anext__()
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/utils.py", line 664, in __anext__
return await anyio.to_thread.run_sync(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/anyio/to_thread.py", line 56, in run_sync
return await get_async_backend().run_sync_in_worker_thread(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 2177, in run_sync_in_worker_thread
return await future
^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 859, in run
result = context.run(func, *args)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.12/site-packages/gradio/utils.py", line 647, in run_sync_iterator_async
return next(iterator)
^^^^^^^^^^^^^^
File "/Users/admin/dev/multimodal-chat/multimodal_chat.py", line 1404, in chat_function
response = run_loop(messages, system_prompt, temperature, state)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/admin/dev/multimodal-chat/multimodal_chat.py", line 1355, in run_loop
response_message = response['output']['message']
~~~~~~~~^^^^^^^^^^
TypeError: string indices must be integers, not 'str'
```

Start with multimodal_chat.py, especially run_loop around line 1355 and chat_function around line 1404, and inspect how the Bedrock model IDs are selected and errors returned. Reproduce the Converse calls for the Claude and Meta model IDs; done means authorized requests work and an access failure does not trigger the reported TypeError.

Written by the indexing model from the issue text.