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Inworld vs Sudowrite
Inworld edges Sudowrite on our editorial score (4.2 vs 4.1), but Inworld is the better fit if you want voice notes and long-term memory and custom characters; Sudowrite has no clear edge there.
| Inworld | Sudowrite | |
|---|---|---|
| Editor score | 4.2 / 5 | 4.1 / 5 |
| Price | Free | $10/mo |
| Price band | Free | $10–20/mo |
| Free tier | Yes | No |
| Price detail | Free tier (5,000 API interactions/mo, Studio, Unity/Unreal SDK). Pro pay-as-you-go from $0.002/interaction; Creator $25/mo. | $10/mo billed annually (higher tiers $22 and $44/mo annual) as shown 2026-09-30; monthly billing is available at higher rates. Free trial credits on signup. |
| Adult content | No adult mode | No adult mode |
| Voice | Voice notes | No |
| Images | No | No |
| Video | No | No |
| Memory | Yes | No |
| Custom characters | Yes | No |
| Companion types | Any character | Any character |
| Platforms | Web | Web |
| Runs locally | No | No |
Inworld — our take
A developer platform for personality, memory, emotion and voice — build your own interactive characters for games and apps.
- Deep personality + memory engine
- Unity/Unreal SDKs
- Generous free tier
Sudowrite — our take
The best-known AI fiction partner: Story Engine turns an outline into chapters, and Rewrite keeps your voice.
- Story Engine drafts whole chapters
- Describe and Rewrite tools
- Tuned for long fiction
Inworld vs Sudowrite — common questions
Which is cheaper, Inworld or Sudowrite?
Inworld is the cheaper of the two at Free, against $10/mo for Sudowrite.
Which one has a free tier?
Only Inworld has a free tier; Sudowrite is paid-only.
Which remembers conversations better?
Inworld retains context across sessions; Sudowrite keeps context only within a session.
Which handles adult content differently?
Inworld: No adult mode. Sudowrite: 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.