Is Aider or Poolside better?

Neither clearly leads. Aider starts at Free and Poolside at $0.06/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Aider or Poolside?

Aider has a free tier; the other does not. Paid plans start at Free for Aider and $0.06/month for Poolside.

Does Aider or Poolside run on more platforms?

Aider runs on mac, linux, windows, api. Poolside runs on web, api, mac, windows, linux.

What is Aider best used for?

Aider is most often used for editing an existing codebase from the terminal, pairing with an llm on a new project, automating git-committed code changes, working across many programming languages. Of those, editing an existing codebase from the terminal and pairing with an llm on a new project are not what Poolside is typically brought in for.

What can Aider do that Poolside cannot?

Aider covers Multi-LLM support, Repository mapping, Git integration, Voice-to-code. Poolside covers Laguna S 2.1, Laguna XS 2.1, Desktop and CLI tools, Open-weight models.

Software · head to head

Aider vs Poolside

Aider

Software

AI pair programming in your terminal

From: Free
Rated: -

Full review Website

Poolside

Software

Open-weight foundation models built for agentic software engineering

From: $0.06/month
Rated: -

Full review Website

The short version

Only Aider has a free tier, so it costs nothing to try first.
Each has a real cost: Aider requires comfort working in a terminal rather than a graphical IDE; Poolside no self-serve public application; access is largely through enterprise sales or third-party model gateways
They diverge on capability: Aider covers Multi-LLM support, Poolside covers Laguna S 2.1.

Where they differ

Only the attributes on which Aider and Poolside actually diverge.

Attributes where Aider and Poolside differ
Attribute	Aider	Poolside
Starting price	Free	$0.06/month
Pricing model	open-source	usage-based
Free tier	Yes	No
Platforms	mac, linux, windows, api	web, api, mac, windows, linux

Identical on both: user rating (Not yet rated), category (Unknown), founded (2023).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Aider

Multi-LLM support
Repository mapping
Git integration
Voice-to-code
Lint and test automation
Image and web context
Free provider access
Editor file-watching

Only in Poolside

Laguna S 2.1
Laguna XS 2.1
Desktop and CLI tools
Open-weight models
Third-party gateway access

What people use each for

The jobs each tool is most often brought in to do.

Aider

Editing an existing codebase from the terminalnot Poolside
Pairing with an LLM on a new projectnot Poolside
Automating git-committed code changesnot Poolside
Working across many programming languagesnot Poolside
Bringing your own LLM API key to a coding workflownot Poolside

Poolside

Enterprises deploying AI coding assistance across large developer organizationsnot Aider
Government and defense agencies needing on-premise or sovereign coding modelsnot Aider
Teams building custom coding agents on open-weight foundation modelsnot Aider
Organizations wanting on-device lightweight coding modelsnot Aider

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Aider

Requires comfort working in a terminal rather than a graphical IDE
Has no hosted or managed version, so users must supply and pay for their own LLM API access separately
Depends heavily on the chosen underlying model's quality, so results vary by which LLM is configured
Lacks a built-in autonomous multi-step task runner comparable to agent-style products

Poolside

No self-serve public application; access is largely through enterprise sales or third-party model gateways
Pricing for the flagship enterprise and government offering is not public and requires a sales conversation
Targets organizations with large (5,000+) developer headcounts, making it a poor fit for individuals or small teams
Documentation and product surface area are thin compared to consumer-facing coding assistants

Pricing, plan by plan

Aider

Free

No published plan breakdown. See the Aider review.

Poolside

$0.06/month

Laguna XS 2.1$undefined/month
- $0.06 per 1M input tokens
- $0.12 per 1M output tokens
- Available via OpenRouter and Vercel AI Gateway
Laguna S 2.1$undefined/month
- $0.10 per 1M input tokens
- $0.20 per 1M output tokens
- 1M token context window
Enterprise / Government$undefined/month
- Custom contracts for large engineering organizations
- Sales-quoted pricing
- On-premise or dedicated deployment options

Which should you pick?

Choose Aider if

You need multi-llm support.
You want to start without paying.
You work on mac, linux, windows, api.
You also want repository mapping.

Aider review

Choose Poolside if

You need laguna s 2.1.
You work on web, api, mac, windows, linux.
You also want laguna xs 2.1.

Poolside review

Questions people ask

Is Aider or Poolside better?: Neither clearly leads. Aider starts at Free and Poolside at $0.06/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aider or Poolside?: Aider has a free tier; the other does not. Paid plans start at Free for Aider and $0.06/month for Poolside.
Does Aider or Poolside run on more platforms?: Aider runs on mac, linux, windows, api. Poolside runs on web, api, mac, windows, linux.
Can I use Aider for free?: Yes. Aider has a free tier, so you can try it without paying. Poolside starts at $0.06/month.
What is Aider best used for?: Aider is most often used for editing an existing codebase from the terminal, pairing with an llm on a new project, automating git-committed code changes, working across many programming languages. Of those, editing an existing codebase from the terminal and pairing with an llm on a new project are not what Poolside is typically brought in for.
What can Aider do that Poolside cannot?: Aider covers Multi-LLM support, Repository mapping, Git integration, Voice-to-code. Poolside covers Laguna S 2.1, Laguna XS 2.1, Desktop and CLI tools, Open-weight models.

Answered from the vendors’ own pages

Aider: Is Aider free to use?

Aider itself is free and open source, released under the Apache 2.0 license. Users must separately supply and pay for API access to the LLM they choose to use with it.

Source

Poolside: How is Poolside's Laguna model usage priced?

Laguna XS 2.1 is priced at $0.06 per 1M input tokens and $0.12 per 1M output tokens; Laguna S 2.1 is $0.10 per 1M input tokens and $0.20 per 1M output tokens.

Source

Aider: Which LLMs can I use with Aider?

Aider connects to OpenAI, Anthropic, Gemini, GROQ, DeepSeek, Ollama, Azure, Cohere, xAI, GitHub Copilot, Vertex AI, Amazon Bedrock, OpenRouter and most other LLM providers via API keys.

Source

Poolside: Where can I access Poolside's models?

Laguna models are available through third-party gateways OpenRouter and Vercel AI Gateway, as well as via Poolside's own desktop and CLI tools.

Source

Aider: Can I use Aider for free without paying for an LLM API?

Yes, Aider can be used at no cost through OpenRouter's free model access (subject to daily usage limits) or Google's Gemini 2.5 Pro Exp, which the docs note performs well without a paid API key.

Source

Poolside: Does Poolside offer enterprise or government pricing?

Yes, Poolside offers custom, sales-quoted contracts for large enterprises and government/defense customers, including on-premise or dedicated deployment options.

Source

Aider: How does Aider handle version control?

Aider automatically stages and commits each change it makes to a connected git repository, generating a descriptive commit message for every edit so changes stay reviewable and reversible.

Source

Poolside: How do I get started building with Poolside's models?

Poolside's documentation provides a quickstart guide for installing the `pool` CLI and running an agent task, alongside API documentation for custom integrations.

Source

Aider vs Poolside

Aider

Poolside

The short version

Where they differ

What each one covers

Only in Aider

Only in Poolside

What people use each for

Aider

Poolside

Where each one falls short

Aider

Poolside

Pricing, plan by plan

Aider

Poolside

Which should you pick?

Choose Aider if

Choose Poolside if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Aider

More on Poolside

Keep looking

Other head to heads