O
Web product
Added November 9, 2026
About the product
OpenSI provides a free comparison interface for AI models. Select up to three models to compare token prices, context windows, supported inputs and outputs, reasoning, tool calling and open-weight availability. The LLM API pricing page helps estimate usage costs using dated OpenRouter model snapshots. No login is needed for core comparison.
0 recommendations
Recommendations are a community signal, not a verified count.
Share OpenSI with your network.
Community notes
Feedback & updates
No notes yet
Have experience with OpenSI, or something new to share? Add the first useful note.
For product owners
Promote OpenSI
Every listing gets one post to our X and Threads followers. It is seen once, then the traffic stops. Promotion keeps OpenSI in front of people instead.
- Back in the X and Threads rotation: OpenSI gets posted again instead of once.
- A promoted slot on the AppRater homepage, carrying a Promoted badge.
- A direct link to OpenSI from a DR45 site (Ahrefs Domain Rating), with no redirect in between.
- A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
- Stays on the first screen however old the listing is, while new submissions push everything else down.
For ownersOwn OpenSI? You can add a deal, post a role or put the badge on your own site.