Aider
Terminal-based AI pair programming that works with any language model
- Also known as
- aider
Available worldwide
What is Aider?
A command-line tool enabling developers to pair program with language models to start new projects or modify existing codebases, featuring automatic git integration and support for over 100 programming languages.
Aider pricing
We don't have Aider's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Completely free and open source
What Aider does
The capabilities that matter for ai coding assistants, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Form
- CLI agent
- Autonomy level
- Agentic
- Editor / surface support
- IDE integration via comments, web chat interface
- Model source
- Model-agnostic (BYO key)
- Self-hostable / air-gapped
- ✓
- Codebase context
- Repo-wide indexing
- Multi-file edits
- ✓
- Runs commands / tools
- ✓
- Zero-data-retention option
- ✓
- Enterprise controls
- ✗
- Language coverage
- 100+ languages including Python, JavaScript, Rust, Ruby, Go, C++, PHP, HTML, CSS
- Pricing model
- Free
- Open-source client
- OSS
Platform & deployment
Independently observed- CLI
- Cloud / SaaS
- Self-hosted
Integrations (33)
Independently observed- Claude
- DeepSeek
- OpenAI
- Gemini
- GROQ
- LM Studio
- xAI
- Azure
- Cohere
- Ollama
- OpenRouter
- GitHub Copilot
- Vertex AI
- Amazon Bedrock
- Claude 3.7 Sonnet
- Claude Opus
- Claude Sonnet
- DeepSeek R1
- DeepSeek Chat V3
- DeepSeek V3
- GPT-4o
- GPT-4.1
- o1
- o3-mini
- o3-pro
- GPT-5
- Grok-4
- Command R
- Fireworks AI
- VS Code
- vim
- neovim
- Emacs
Security & compliance
Known vulnerabilities: 2 (2 in the last 12 months), max severity LOW sourcea count reflects scale & disclosure, not quality
Aider FAQ
Common questions about Aider, answered from independent, dated evidence.
What is Aider?
Aider is a command-line assistant that pairs developers with AI models for collaborative coding. It maps your entire codebase for context, automatically commits changes via git, supports 100+ programming languages, and integrates with popular LLMs and IDEs. It is indexed under AI Coding Assistants.
Source: https://aider.chat
Is Aider free to use?
Aider is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.
Source: https://aider.chat
What platforms does Aider support?
Aider supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://aider.chat
Can Aider be self-hosted?
Yes. Aider can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://aider.chat
What does Aider integrate with?
We have confirmed 25 integrations for Aider, including Claude, DeepSeek, OpenAI, Gemini, GROQ, LM Studio, xAI and Azure, plus 17 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://aider.chat
Is Aider open source?
Yes. Aider is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Aider alternatives
Other ai coding assistants we track, ranked by the same independent score.
- Amazon Q DeveloperAn AI coding assistant that generates code suggestions, performs security scanning, and automates development tasks across IDEs and the AWS Console.medium · 74%
- GitHub CopilotAn AI coding assistant offering inline suggestions and chat-based development supportmedium · 74%
- ClineAn intelligent code automation tool that handles file operations, command execution, and complex tasks with user oversightmedium · 57%
- DevinAn autonomous AI engineer that automates coding tasks, discovers and fixes security vulnerabilities, and refactors codebases across millions of lines.medium · 56%
- QodoAutomated code review powered by AI to help teams deploy with greater confidencemedium · 71%
- SweepAn AI coding agent with intelligent autocomplete for JetBrains IDEsmedium · 54%
Compare Aider
Side by side against other ai coding assistants, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Aider, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package downloads | 68 | 0.14 | 9.2 | ✓ |
| Capabilities | 100 | 0.07 | 7.0 | ✓ |
| Release cadence | 95 | 0.05 | 4.9 | ✓ |
| Integrations | 41 | 0.08 | 3.2 | ✓ |
| Stars | 89 | 0.03 | 2.3 | ✓ |
| Dependent projects | 5 | 0.06 | 0.3 | ✓ |
| Development activity | 0 | 0.09 | 0.0 | ✓ |
| Security posture | 0 | 0.06 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 0 | mediumsource · 2026-08-01 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 66% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Form: cli_agent · Autonomy: agentic · Languages: 100+ languages including Python, JavaScript, Rust, Ruby, Go, C++, PHP, HTML, CSS · Oss client: oss · Model source: model_agnostic · Pricing model: free | mediumsource · 2026-09-11 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 26 | mediumsource · 2026-08-21 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Python | highsource · 2026-09-11 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-09-11 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-21 · 75% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-05 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=aider-chat&per_page=100 · Last 12m: 2 · Max severity: LOW | highsource · 2026-09-11 · 90% |
Is Aider the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Aider against the rest of the ai coding assistants we index, using the same dated evidence weighted your way.
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