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HammerAI vs Open WebUI
HammerAI edges Open WebUI on our editorial score (4.2 vs 4.2), but the two are close on features — Open WebUI is cheaper at Free (~$9/mo less), so default to it unless you prefer HammerAI's branding.
| HammerAI | Open WebUI | |
|---|---|---|
| Editor score | 4.2 / 5 | 4.2 / 5 |
| Price | $9/mo | Free |
| Price band | Under $10/mo | Free |
| Free tier | Yes | Yes |
| Price detail | Free: 600 cloud messages/day, unlimited chat on locally run models. Pro tiers $9/$18/$35 per month for larger cloud limits. Verified on hammerai.com/pricing. | Free and open-source; self-host via Docker/pip. An enterprise tier exists but consumer use is free. |
| Adult content | No adult mode | No adult mode |
| Voice | Voice notes | Voice notes |
| Images | Yes | Yes |
| Video | No | No |
| Memory | Yes | Yes |
| Custom characters | Yes | Yes |
| Companion types | Any character | Any character |
| Platforms | Web, Desktop, iOS | Web |
| Runs locally | Yes | Yes |
HammerAI — our take
The most generous free tier in the category: unlimited chat on locally run models, 600 cloud messages a day, no card required.
- Unlimited free chat with local models
- Group chat, lorebooks and personas
- Open-source with desktop apps
Open WebUI — our take
The power-user pick: run any model locally or in the cloud with zero data retention and full control.
- Zero data retention when self-hosted
- Any model via Ollama/OpenAI-compatible APIs
- Huge community sharing prompts and tools
HammerAI vs Open WebUI — common questions
Which is cheaper, HammerAI or Open WebUI?
Open WebUI is the cheaper of the two at Free, against $9/mo for HammerAI.
Which one has a free tier?
Both do — you can try either without paying.
Which remembers conversations better?
Both keep context across sessions. The practical difference is elsewhere: price and platform coverage differ between them.
Which handles adult content differently?
HammerAI: No adult mode. Open WebUI: No adult mode. This directory is SFW — we record whether a mature mode exists so you know before signing up, and we describe no explicit material.