- Added support for all GPT-5 models.
- Added support for Grok-4 via xai/grok-4 and openrouter/x-ai/grok-4 model names.
- Added support for gemini/gemini-2.5-flash-lite-preview-06-17 model, by Tamir Zahavi-Brunner.
- /clear now prints “All chat history cleared.” so you know it worked, by Zexin Yuan.
- /undo output now shows only the first line of each commit message, making it easier to read.
- Added support for openrouter/moonshotai/kimi-k2 model, by Jack Harrington.
Aider by Aider-AI (Paul Gauthier)
Pulse Score
34 / 100
Rank #84 of 157
Downloads, last 7 days
61.3K
down 1.5% vs previous week
Downloads, last 30 days
271K
down 57.8% vs previous 30 days
GitHub stars
49.4K
about +23 a day
Latest release
0.86.0
14mo ago
Price
Free (OSS)
checked Oct 5, 2026
Overview
Open-source AI pair-programming tool for the terminal that edits files in a local git repository and commits the changes. It works with multiple LLM providers using the user's own API keys.
Status: Development has slowed: last PyPI release 0.86.2 on 2026-02-12 and last commit 2026-05-22 as of 2026-10-05; no wind-down notice found.
Aider was downloaded 61.3K times from PyPI in the week ending Oct 4, 2026, down 1.5% on the week before and down 57.8% over the last 30 days compared with the 30 before. The GitHub repository has 49.4K stars, 739 of them added in the last 30 days. The latest stable release is 0.86.0, published Aug 9, 2025. It was mentioned in 10 Hacker News posts and comments over the last 30 days.
Aider usage and attention over time
Download the raw daily series: aider.csv
Install Aider
| PyPI | pip install aider-chat |
|---|---|
| Homebrew | brew install aider |
| Docker | docker pull paulgauthier/aider |
These commands use the packages tracked on this page. The vendor may recommend a different installer; see the official documentation.
Key facts
| Maker | Aider-AI (Paul Gauthier) |
|---|---|
| Type | Terminal agent |
| First released | June 2023 |
| License | Apache-2.0 |
| Interfaces | CLI |
| Platforms | macOS, Linux, Windows |
| Models | Multiple LLM providers (OpenAI, Anthropic, Gemini and others) via user-supplied API keys |
| Local models | Ollama, or any OpenAI-compatible local server (docs) |
| Bring your own API key | Yes |
| Main language | Python |
| Open issues and PRs | 1,910 |
| Homebrew installs | 276 in 30 days · 11,294 in a year |
| Docker Hub pulls | 63,276 |
Pricing
Aider is free and open source; users pay their chosen LLM provider directly with their own API keys.
, checked Oct 5, 2026. Prices change often; confirm before you buy.
Pulse Score breakdown
Adoption40
Community71
Attention11
Momentum0
Each component is scored 0 to 100 from public signals; a dash means no data for it. Methodology.
What changed: recent Aider releases
- Added support for new Gemini models including gemini-2.5-pro, gemini-2.5-flash, and gemini-2.5-pro-preview-06-05 with thinking tokens support.
- Updated model aliases: flash now points to gemini-2.5-flash and gemini now points to gemini-2.5-pro.
- Support for Responses API models like o1-pro, o3-pro.
- Added support for OpenAI o3-pro model across multiple providers.
- Enhanced thinking tokens support: can now be disabled by setting to 0, and improved help text with examples.
- Increased max tokens for Deepseek models to 65536 for better performance.
- Added support for new Claude models including the Sonnet 4 and Opus 4 series (e.g., claude-sonnet-4-20250514,
- Added support for the vertexai/gemini-2.5-flash-preview-05-20 model.
- Updated default OpenRouter models during onboarding to deepseek/deepseek-r1:free for the free tier and
- Automatically refresh GitHub Copilot tokens when used as OpenAI API keys, by Lih Chen.
- Fixed an issue where files explicitly added via the command line were not correctly ignored if listed in .gitignore.
- Improved automatic commit messages by providing more context during their generation, by wangboxue.
- Added support for gemini-2.5-pro-preview-05-06 models.
- Added support for qwen3-235b models.
- Added repo-map support for OCaml and OCaml interface files, by Andrey Popp.
- Added a spinner animation while waiting for the LLM to start streaming its response.
- Updated the spinner animation to a Knight Rider style.
- Introduced --attribute-co-authored-by option to add co-author trailer to commit messages, by Andrew Grigorev.
- Support for GPT 4.1, mini and nano.
- Improved support for using architect mode with Gemini 2.5 Pro.
- Add support for xai/grok-3-beta, xai/grok-3-mini-beta, openrouter/x-ai/grok-3-beta,
- Added support for grok-3-fast-beta and grok-3-mini-fast-beta models.
- Added new patch edit format for OpenAI's GPT-4.1 model.
- Added new editor-diff, editor-whole, and editor-diff-fenced edit formats.
- Added support for the openrouter/openrouter/quasar-alpha model.
- Currently free on OpenRouter.
- Quasar scored 55% on the polyglot coding benchmark
- Run with aider --model quasar
- Offer OpenRouter OAuth authentication if an OpenRouter model is specified but the API key is missing.
- Prevent retrying API calls when the provider reports insufficient credits.
Aider alternatives
| # | Agent | Pulse | Downloads 7d | 7d | 30d | VS Code installs | Stars | Latest release | Price | Last 90 days | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
OpenAI CodexOpenAI |
82 | 25.6M | up 5.7% | up 21.2% | 15.2M | 128K+153/day | 0.160.1yesterday | Free + $8/mo | ||
| 3 |
Claude CodeAnthropic |
80 | 14.8M | up 11.6% | down 36.4% | 27.1M | 150K+161/day | 2.1.290yesterday | $20/mo | ||
| 5 |
PiEarendil Inc. (created by Mario Zechner) |
75 | 5.2M | up 29.8% | up 52.1% | — | 113K+378/day | 1.0.4yesterday | Free (OSS) | ||
| 7 |
OpenCodeAnomaly (SST team) |
73 | 3.3M | up 22.0% | up 6.1% | 1.2M | 212K+200/day | 1.18.346d ago | Free + $10/mo | ||
| 24 |
Gemini CLIGoogle |
57 | 453K | up 4.7% | up 1.8% | 1.1M | 107K+24/day | 0.62.07d ago | Varies | ||
| 26 |
Oh My PiStencil Labs (Can Bölük) |
56 | 241K | up 11.4% | up 53.9% | — | 34.4K+111/day | 18.6.12d ago | Free (OSS) | ||
| No agents match that filter. | |||||||||||
Head to head: Aider vs OpenCode · Aider vs Claude Code
Aider FAQ
How much does Aider cost?
Aider is free and open source; users pay their chosen LLM provider directly with their own API keys.
Is Aider open source?
Yes. Aider is open source, released under the Apache-2.0 license.
How popular is Aider?
Aider was downloaded 61.3K times from PyPI in the week ending Oct 4, 2026, down 1.5% on the week before and down 57.8% over the last 30 days compared with the 30 before. The GitHub repository has 49.4K stars, 739 of them added in the last 30 days. The latest stable release is 0.86.0, published Aug 9, 2025.
What is the latest version of Aider?
The latest stable release we track is 0.86.0, published on Aug 9, 2025.
What are the alternatives to Aider?
The closest alternatives in the same category by Pulse Score are OpenAI Codex, Claude Code, Pi, OpenCode.
Where these numbers come from
PyPI: aider-chat. GitHub: Aider-AI/aider. Homebrew: aider. Site rank: aider.chat on the Tranco list. See data sources for how each one is collected.
Product facts and pricing were checked against: aider.chat, pypi.org, formulae.brew.sh, hub.docker.com, github.com.