# Aider v0.57.0: OpenAI o1 model support

> Aider adds support for OpenAI's o1-preview and o1-mini via `--model`, with the release notes reporting o1-preview works well with the diff edit format and matches the project's SOTA leaderboard result when used with the whole edit format. Also fixes `/run` shell selection on Windows and adds recursive directory support to `/read-only`.

| | |
|---|---|
| **Tool** | Aider |
| **Version** | v0.57.0 |
| **Kind** | release |
| **Published** | 2024-09-21 |
| **Observed** | 2026-08-11 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | model-support, feature, fix |

## What changed


- `aider --model o1-preview` and `aider --model o1-mini` now supported
- o1-preview reported to work well with diff edit format; whole edit format matches the project's SOTA leaderboard result
- Cohere 08-2024 models supported
- `/run` picks PowerShell or cmd.exe correctly on Windows
- `/read-only` accepts directories recursively
- Input prompts fall back to plain `input()` under `--no-pretty` or an unsupported Windows console
- Stricter git repo sanity check at startup; prompt cache chunking strategy tweaked
- Dropped the "No changes made to git tracked files" message; assorted crash fixes; dependencies bumped


## Sources

- [github_release](https://github.com/Aider-AI/aider/releases/tag/v0.57.0) — retrieved 2026-08-11

## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

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Canonical: https://changelogs.info/aider/v0-57-0
Entity: https://changelogs.info/aider
Event ID: `evt_2024-09-21_aider_v0-57-0`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.