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@ -133,38 +133,29 @@ Aider has some ability to help GPT figure out which files to edit all by itself,
## GPT-4 vs GPT-3.5
Aider supports all of OpenAI's chat models, including
the the brand new `gpt-3.5-turbo-16k` model.
You will probably get the best results with one of the GPT-4 models,
because of their large context windows,
adherance to system prompt instructions and
greater competance at coding tasks.
The GPT-4 models are able to structure code edits as simple "diffs"
Aider supports all of OpenAI's chat models,
but you will probably get the best results with one of the GPT-4 models.
They have large context windows, better coding skills and
they generally obey the instructions in the system prompt.
GPT-4 is able to structure code edits as simple "diffs"
and use a
[repository map](https://aider.chat/docs/ctags.html)
to improve their ability to make changes in larger codebases.
The GPT-3.5 models are supported more experimentally
and are limited to editing somewhat smaller codebases.
They are less able to follow instructions and
aren't able to return code edits in a compact "diff" format.
So aider has
to ask GPT-3.5 to return a new copy of the "whole file" with edits included.
This rapidly uses up tokens and can hit the limits of the context window.
For more detailed information and a quantitative comparison, here are
[code editing benchmark results for GPT-3.5 and GPT-4](https://aider.chat/docs/benchmarks.html).
to improve its ability to make changes in larger codebases.
GPT-3.5 is supported more experimentally
and is limited to editing somewhat smaller codebases.
It is less able to follow instructions and
can't reliably return code edits as "diffs".
Aider disables the
[repository map feature](https://aider.chat/docs/ctags.html)
when used with GPT-3.5 models.
The `gpt-3.5-turbo` context window is too small to include a repo map.
Evaluation is still needed to determine if `gpt-3.5-turbo-16k` can make use of a repo map.
repository map
when using GPT-3.5.
For a detailed and quantitative comparison, please see the
[code editing benchmark results for GPT-3.5 and GPT-4](https://aider.chat/docs/benchmarks.html).
In practice, this means you can use aider to edit a set of source files
that total up to the sizes below.
You can (and should) add just the specific set of files to the chat
Just add the specific set of files to the chat
that are relevant to the change you are requesting.
This minimizes your use of the context window, as well as costs.