Manually choose competitor 
Koast
Udio
Textfix AI
Summarie
Data Science in Libraries
Text Wallpaper Generator
AI Detector
Thundr| Feature | Koast | |
|---|---|---|
| Pricing | Free | Freemium |
| Free tier | Yes | Yes |
| API | Yes | No |
| Open source | Yes | No |
| Platforms | Web | API |
| Models | Adcopy | Deepseek |
| Context window | — | 128k |
| Launched | 2025 | 2023 |
Top alternatives to Koast
See all alternatives →DeepSeek
Open-weight LLMs including a 671B MoE model that matches GPT-4o at far lower API cost
Udio
AI music creation and audio production
Textfix AI
Humanize AI writing to sound natural
Summarie
Summarize long-form text and extract key information
Data Science in Libraries
Data science programs in libraries
Text Wallpaper Generator
Free custom text wallpapers for devices and servers
Tags: Large Language Model (llm)
Specs
| Pricing | Free |
|---|---|
| Free tier | Yes |
| API | Yes |
| Open source | Yes |
| Platforms | Web |
| Models | Adcopy |
| Launched | 2025 |