# Aider v0.80.0: OpenRouter OAuth onboarding and automatic model selection from environment

> Aider will now OAuth against OpenRouter when started with no model and no keys, and picks a default model based on which provider credentials it finds — OpenRouter free/paid tier, `GEMINI_API_KEY`, or `VERTEXAI_PROJECT`. Switching models with `/model` now also switches the edit format if you were on the old model's default.

| | |
|---|---|
| **Tool** | Aider |
| **Version** | v0.80.0 |
| **Kind** | release |
| **Published** | 2025-03-31 |
| **Observed** | 2026-08-11 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | feature, model-support, fix |

## What changed


- Offers OpenRouter OAuth when no model and no keys are supplied; picks the OpenRouter default by free/paid tier when `OPENROUTER_API_KEY` is set.
- Prefers `gemini/gemini-2.5-pro-exp-03-25` when `GEMINI_API_KEY` is set, `vertex_ai/gemini-2.5-pro-exp-03-25` when `VERTEXAI_PROJECT` is set.
- Added `openrouter/deepseek-chat-v3-0324:free`.
- `/model` updates the edit format to the new model's default if the user was on the old model's default.
- Warns when `--stream` and `--cache-prompts` are combined (cost estimates may be inaccurate); validates colour settings at startup and disables invalid ones.
- Repo map ranking boosted for files whose path components match identifiers mentioned in the chat; repo map support added for Scala.
- Web scraping timeout downgraded from error to warning — scraping continues with possibly incomplete content.
- New `Ctrl-X Ctrl-E` keybinding to edit the input buffer in an external editor.
- Fix: `/run` was preventing auto-testing.
- Fix: linting for filepaths containing shell metacharacters.
- Handles missing git (`GitCommandNotFound`), a deleted working directory (`FileNotFoundError`), and an `UnboundLocalError` during git tree traversal.
- Markdown headings left-aligned; completion menu current-item colour fixed.


## Sources

- [github_release](https://github.com/Aider-AI/aider/releases/tag/v0.80.0) — retrieved 2026-08-11

## Community

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and never blended._

---
Canonical: https://changelogs.info/aider/v0-80-0
Entity: https://changelogs.info/aider
Event ID: `evt_2025-03-31_aider_v0-80-0`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.