Reason
Cost-efficient autonomous coding agent that writes code, tests, and opens PRs.

What is Reason?
Reason is an autonomous software-engineering agent focused on cost efficiency. Product Hunt materials claim stronger Terminal Bench / DeepSWE results than some harnesses while being cheaper, and it can work locally or in the cloud: take a task, write code, run tests, and open a pull request. Access is via Mac app, terminal, web, or Slack with your choice of models and connected subscriptions. Public dollar plan tables were not clearly posted on the homepage at collection time—PH copy says you can start free on your own computer or cloud.
- Developers who want an agent that opens PRs end-to-end
- Teams optimizing for coding-agent cost vs Codex-class harnesses
- People who want Mac app, terminal, web, or Slack entry points
- Public pricing table was not verified on reasonmachines.com at draft time
- Benchmark claims should be checked against your own repos
- Autonomous PR agents still need human review before merge
What it does
- 01Autonomous code → PRTakes a task, writes code, runs tests, and opens a pull request.
- 02Local or cloudRun on your machine or in the cloud depending on the workflow.
- 03Multi-surface accessMac app, terminal, web, and Slack entry points.
- 04Model choiceUse chosen models and connected subscriptions rather than a single locked model.
Reason pricing
Change log
What our crawler noticed on reasonmachines.com since listing.
- 14 Oct 2026+Listed after editor review
Questions about Reason
Is Reason free?
Product Hunt launch copy says you can start free on your own computer or cloud. A public paid price list was not clearly published on the homepage when this draft was written, so treat paid tier dollars as unverified.
How is it different from Codex?
It markets higher benchmark scores at lower cost and emphasizes autonomous PR workflows across Mac, terminal, web, and Slack.
Reason alternatives
OpenCodeOpen-source AI coding agent available as terminal, desktop, and web app.Open source
Base44No-code AI platform to turn ideas into apps, websites, and agents.Freemium · from $16/mo
AcyclicSplit agentic workflows across parallel workspace-forked agents and merge the results.Pricing unknown