
Free AI Writing Assistance

Building AI to Simulate the World
Grammarly is more geared toward b2c users, while Runway targets b2b.
Grammarly offers an API for integration into your workflows.
Grammarly: Free AI Writing Assistance. Runway: Building AI to Simulate the World. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Grammarly is freemium and Runway is freemium.
The best choice between Grammarly and Runway depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Grammarly is primarily designed for individuals, while Runway is built for individuals.
Grammarly offers: AI assistant, AI text generation, Tone detection, Mistake-free writing support. Runway offers: Building foundational General World Models, Simulating possible worlds and experiences, AI for understanding the world, AI for perceiving the world.
Based on our data, Grammarly currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.
Neither tool currently offers a free trial.
Grammarly offers 20 integrations (gmail, microsoft-outlook, apple-mail, google-docs, microsoft-word...) compared to 0 for Runway.
Grammarly is available on Web, Ios, Android, Desktop, Api. Runway is available on Web.