# Buildful knowledge base > Plain answers about AI coding tools: what each plan costs, what the free plans include, and how the tools compare. Each entry below links to its Markdown copy. The HTML pages at https://buildful.ai/knowledge-base are the ones to cite. ## Claude - [Claude Pro vs Max: which plan you need for Claude Code](https://buildful.ai/knowledge-base/md/claude-pro-vs-max): Claude Pro is $20 a month; Max is $100 or $200 for 5x or 20x Pro's usage. How the limits, Fable access and API credits differ, and when to upgrade. - [Claude Max plan: price, usage limits and who it's for](https://buildful.ai/knowledge-base/md/claude-max-plan): Claude Max costs $100 a month for 5x Pro's usage or $200 for 20x. What each tier includes, how the weekly and Fable limits work, and who should pay for it. - [OpenCode vs Claude Code: models, price and license compared](https://buildful.ai/knowledge-base/md/opencode-vs-claude-code): OpenCode is a free, MIT-licensed agent for any model. Claude Code is Anthropic's, from $20 a month with Claude Pro. Models, price and cloud sessions compared. - [Devin vs Claude Code: where they run, models and price compared](https://buildful.ai/knowledge-base/md/devin-vs-claude-code): Devin is Cognition's cloud agent, from $20 a month. Claude Code is Anthropic's terminal agent, in Claude Pro from $20. Where each runs, models, limits and PRs. ## Cursor - [Devin vs Cursor: cloud agents, editors, models and price compared](https://buildful.ai/knowledge-base/md/devin-vs-cursor): Devin's cloud agent comes with Pro at $20 a month. Cursor's Cloud Agents start at Premium, $30. Where each runs, models, pricing, Slack, Linear and GitHub. - [Cursor pricing in 2026: every plan, and what each costs](https://buildful.ai/knowledge-base/md/cursor-pricing): Cursor pricing moved to The X Subscription: Free, Plus $8, Premium $30, Super $100, Ultra $200. What happened to Cursor Pro and the ₹649 Start plan in India. - [Is Cursor free? What the free plan includes in 2026](https://buildful.ai/knowledge-base/md/is-cursor-free): Cursor has a $0 free plan with Agent, Chat and Tab on Cursor's own models. What the Cursor free plan leaves out, how its limits work, and the lowest paid plan. ## Devin - [Devin alternatives in 2026: six cloud coding agents compared](https://buildful.ai/knowledge-base/md/devin-alternatives): Devin alternatives that take a task and open a pull request: Codex, Copilot, Cursor Cloud Agents, Claude Code, Factory and Buildful. Where each runs and costs. - [Devin Review: Cognition's AI code review tool, and how it works](https://buildful.ai/knowledge-base/md/devin-review): Devin Review is Cognition's AI code review tool for pull requests. How to open a PR in it, what Bug Catcher and Auto-Review do, where it works, what it costs. - [Devin vs Cursor: cloud agents, editors, models and price compared](https://buildful.ai/knowledge-base/md/devin-vs-cursor): Devin's cloud agent comes with Pro at $20 a month. Cursor's Cloud Agents start at Premium, $30. Where each runs, models, pricing, Slack, Linear and GitHub. - [Devin CLI: how to install it, the main commands, and local vs cloud](https://buildful.ai/knowledge-base/md/devin-cli): The Devin CLI is Cognition's terminal coding agent. How to install it on macOS, Linux and Windows, its main commands, and how it hands work to Devin Cloud. - [Devin Desktop: what it is, and what happened to Windsurf](https://buildful.ai/knowledge-base/md/devin-desktop): Devin Desktop is Windsurf's new name since June 2, 2026. What changed, how Devin Local replaced Cascade, which plans include it, and how to install it. - [What is Devin AI? The autonomous coding agent from Cognition](https://buildful.ai/knowledge-base/md/what-is-devin-ai): Devin AI is Cognition's autonomous coding agent. It plans, codes, tests and opens pull requests in its own cloud machine. Who makes it, how it works, its price. - [Devin vs Claude Code: where they run, models and price compared](https://buildful.ai/knowledge-base/md/devin-vs-claude-code): Devin is Cognition's cloud agent, from $20 a month. Claude Code is Anthropic's terminal agent, in Claude Pro from $20. Where each runs, models, limits and PRs. - [Devin pricing in 2026: Free, Pro $20, Max $200 and Teams from $80](https://buildful.ai/knowledge-base/md/devin-pricing): Devin costs $0 to $200 a month: Free, Pro $20, Max $200, and Teams from $80 with $40 seats. How the quota, extra usage, ACUs and Devin Desktop billing work. ## Factory - [Factory Droid: what it is, how to install it, and which models it runs](https://buildful.ai/knowledge-base/md/factory-droid): Droid is Factory AI's coding agent. How to install the Droid CLI, the built-in and custom droids, droid exec, which models it runs, and how it's billed. - [Factory AI pricing in 2026: Pro $20, Plus $100, Max $200 and Teams](https://buildful.ai/knowledge-base/md/factory-pricing): Factory AI pricing runs from $20 to $200 a month, and Teams is $60 plus $40 a seat. What each plan includes, how rate limits work, and what Extra Usage costs. - [What is Factory AI? The company behind the Droid coding agent](https://buildful.ai/knowledge-base/md/what-is-factory-ai): Factory AI is a San Francisco company, founded in 2023, that makes the Droid coding agent. Where Droid runs, what Factory costs, and who uses it. ## OpenCode - [OpenCode Go: price, models and usage limits](https://buildful.ai/knowledge-base/md/opencode-go): OpenCode Go costs $10 a month, or $40 for Go Plus, for 30 coding models. Which models it includes, the per-model monthly limits, and how the 5-hour cap works. - [OpenCode vs Claude Code: models, price and license compared](https://buildful.ai/knowledge-base/md/opencode-vs-claude-code): OpenCode is a free, MIT-licensed agent for any model. Claude Code is Anthropic's, from $20 a month with Claude Pro. Models, price and cloud sessions compared. ## Software factories - [What is a software factory? Meaning, history and the military model](https://buildful.ai/knowledge-base/md/what-is-a-software-factory): A software factory is the team, tools and pipelines that ship software the same way every time. Where the term came from, the DoD factories, and DevOps.